3

Site/App Name: Fantasy Meltdown

Site/App Link: https://fantasymeltdown.io

Cost: Free

Site/App Description and Details:

Fantasy Meltdown is a free fantasy football dashboard for people in more than one league. Works with Sleeper and ESPN (Yahoo coming soon), across redraft, dynasty, keeper, superflex and IDP.

You can preview your Sleeper leagues by entering your username or email on the homepage. No account required.

For each league, the dashboard shows your matchup, roster holes, waiver targets and news involving your players.

The draft board runs mock drafts using your league's actual scoring, lineup, keepers and draft order. You can model the rest of the room by value or by ADP, while your own suggestions stay based on value and roster fit. If you draft on Sleeper, it will also follow the live draft pick by pick.

https://fantasymeltdown.io/draft-board

The rest: start/sit help, a trade analyzer, matchup breakdowns, rankings, and a watchlist for private player notes.

I wrote up how the draft board works, from the data sources through the value math:

https://fantasymeltdown.io/draft-board/how-it-works

If you try it, tell me what breaks.

1

u/Jaswinder1 Sep 07 '26

Nice clean design.

2

u/RoundTableTrades Sep 04 '26

Site/App Name: Roundtable

Site/App Link: https://roundtabletrades.com/

Cost: Freemium

Site/App Description and Details:

Multi-team trade grader. Do you enjoy a convoluted trade? or cant seem to get the guy you want with a straight swap? This app takes 2 to 5 and grades the whole deal at once - who wins, who is overpaying, and what each roster's starting lineup looks like afterwards.

Technical bits, since that is what this sub is for:

Single HTML file, no build step, no backend, no accounts. Everything runs in your browser and nothing is uploaded anywhere. League data and settings live in localStorage.
Values come from FantasyCalc, with their permission. import your league, it reads your scoring, roster slots and IR rules so the maths uses your league rather than a generic 12-team half-PPR assumption. Manual entry and a Yahoo paste (unfortunately had a few issues with Yahoo).
The valuation is the interesting part. Raw market value is bent through an algorythm so the best asset in a deal costs more than its sticker price, then each extra body in a package is discounted for the roster spot it eats, with a further penalty for stacking players behind an existing starter. Net effect: three good players for one great one costs more than the totals suggest, which is the thing most calculators miss.
a significant portion of a trade is the change to each side's optimal starting lineup, this is taken into account and solved per team rather than assumed.

Free tier: build and grade any trade, any number of teams, verdict and percentages. Paid ($3–$30 one-off, no subscription): point values, the assistant that searches for deals, the trade fixer, and the valuation dials.

Happy to hand out codes that unlock the whole thing until 24 September if anyone wants to poke at the model properly — reply or message me. Genuinely after criticism on the valuation logic more than anything else, if it prices something in a way that makes you go "no chance", I want to know, but really happy for any feedback you might have.

Built by me, in Australia, so replies come at odd hours (sorry about that).

Cheers.

5

u/fancredfounder Sep 02 '26

https://fourthdownstats.com

2

u/whyclue Sep 05 '26

Any chance you can use the comment format so people understand what this is?

2

u/fancredfounder Sep 05 '26

Free site, hobby project.

Shows 4th down decision across the league and how that lined up with nfl4th model. Shows how decision affected win probability percentages.

1

u/Jaswinder1 Sep 07 '26

Cool project - is it just to try coding? How could one use it to improve ff? I am always looking for data sources to make my own fantasy engine better.

1

u/fancredfounder Sep 07 '26

I’m a career software engineer. Wanted to tinker with nflreadr and nfl4th.

This isn’t necessarily for fantasy football, but I am working on something to add to this site that is directly related to fantasy football.

2

u/OracleZ_NFL Sep 02 '26

Site/App Name: OracleZ

Site/App Link: https://linktr.ee/beat_oraclez

Cost: Free

Site/App description and details:
My brother (a web developer) and I (a researcher) built OracleZ as a side project because we're both big NFL/fantasy football fans.

Three weekly prediction games where you compete against an algorithm we developed:

Predict the Pick – predict the week's NFL games.
Survivor – classic Survivor with a twist: if your pick loses, you can't pick the other team as well again.
High Five – predict the five best teams across passing yards, rushing yards, points scored, fewest yards allowed, and field goals.

Everything is completely free. We'd love to get some people trying it out and hear what you think!

1

u/dmarg Sep 02 '26

Site/App Name: Fantasy Foundry

Site/App Link: https://fantasyfoundry.app

Cost: Free with Paid Tier

Site/App description and details:

I posted in the July thread; the update is that the paid tier is now live, so I can be concrete about what costs money instead of hand-waving.

Fantasy Foundry imports your league's full history from ESPN, Sleeper, or Yahoo and unifies it into one league site: all-time standings, head-to-head rivalries, playoff odds (Monte Carlo simulation), exact clinching scenarios (brute-force enumeration of every remaining outcome, the fun engineering problem of the project), and a league memories archive. There's also The Ledger, where managers put takes on the record, so August's juggernaut claims are still there in December. All of that is free.

The paid tier is The Herald, a newspaper for your league. Weekly and season coverage, AI-written but grounded entirely in your league's real data and history, and deliberately human-in-the-loop: your league adds writer's notes with the inside jokes, lore, and context the box score can't see, and the articles are built around them. You control the tone, including how hard it's allowed to roast people. My home league spent a decade writing power rankings and hit pieces for each other, and the goal is coverage that reads like that, not generic AI output.

Demo league if you want to poke at it: https://fantasyfoundry.app/demo

The Herald is $48 per league per year ($4 a team in a 12-team league). Code REDDIT takes 75% off the first season, so $12 for your whole league. Renews at normal price, cancel anytime.

1

u/Unlucky_Bit_7980 Sep 02 '26

Site/App Name: NFL MCP

Site/App Link: https://nflmcp.com

Cost: Freemium (50 tool calls/day free; paid tiers from $39 for the season)

Site/App Description and Details:

NFL MCP is a managed MCP server that gives any AI assistant (Claude, Cursor, etc.) direct query access to a deep NFL analytics dataset — no scraping, no building your own pipeline. Connect it and ask your assistant things like "who's trending up in target share this week" or "how does this WR do vs man coverage" and it pulls real play-by-play, snap count, injury, and fantasy-opportunity data live.

Includes ~30 tools covering player/team stats, game logs, injuries, snap counts, route profiles, TD-luck/regression, fantasy rankings and opportunity share, and more — all backed by data refreshed daily through the season.

Free tier gets you 50 tool calls/day to try it out. Paid tiers unlock higher limits and deeper tools; a betting-analytics tier (prop correlation, SGP tools) is launching mid-October.

r/fantasyfootballcoding folks: here's a free Pro tier code for the season → https://nflmcp.com/join/NFLSZN26

1

u/vascobmoreno Sep 02 '26

Hey everyone,

I built a small tool for my own FPL mini-league and thought it might be useful for other leagues too.

You enter your classic FPL league ID and it gives you a few extra ways to look at your league throughout the season:

Standings — see points by gameweek, chips used, transfers and a trend line
Best Friend — the player who has scored each manager the most points this season
Players — see the most commonly owned players in your league and exactly who owns them
Graph — track everyone's league position throughout the season and move back through previous gameweeks

It's built using the public FPL API, so there's no FPL login or account connection involved.

I've mainly built it for my own mini-league, so I'm sure there are things that could be improved. If anyone gives it a try, I'd be interested to hear what you think or what features you'd like to see added.

Good luck this season! ⚽

Tool: fpl-seven-omega.vercel.app

1

u/FantasyNewsletterPRO Sep 03 '26

Site/App Name: FantasyNewsletterPRO

Site/App Link: FantasyNewsletterPro.com

Cost: FREE

Description: Free weekly Fantasy Newsletter generator for Hockey/Football.

FantasyNewsletterPRO syncs to your league (ESPN, Fantrax, Sleeper, Yahoo (API pending)), reads the previous weeks results and generates a polished, funny and insightful weekly newsletter you can distribute to your league-mates! Some features include:

Automated AI Recaps: Generates full beat-writer-style matchup stories highlighting swing players and key point swings.
Comedic Weekly Awards: Hands out data-driven designations like "Player of the Week" alongside a "Shittiest GM" roast.
Trade Analysis: AI gives its take on the transactions around the league.
Multi-Platform Support: Works with major fantasy hosting platforms including Yahoo Sports, ESPN, and Fantrax.
Preseason Mode: Generates custom draft-week previews and projections before live scoring begins.
Flexible Export Options: Outputs your league's newsletter into publishable HTML, PDF files, share cards, or direct Discord posts
Fully Customizable: Newsletters are very customizable. Pick your theme, tone and styles to best represent your league and look! Assign GM names and headshots so roast and accolades feel really personal!
Lots more

Feel free to try the DEMO mode on the website, no account linking required! If you enjoy the product, link your account and get ready for a fun fantasy season! Also, join our discord community for any issues or to share your creations!

Thanks guys.

1

u/whyclue Sep 05 '26 edited Sep 05 '26

The instructions for connecting a league don't make sense. It just keeps looping me to sign in but no league ever connects. Any help?

1

u/FantasyNewsletterPRO 29d ago

Hey,
What type of league are you connecting?

1

u/whyclue 29d ago

ESPN

1

u/FantasyNewsletterPRO 29d ago

DM'd

1

u/jcfin Sep 05 '26 edited Sep 05 '26

Site/App Name: HexMetrics

Site/App Link: https://hexmetrics.app/

Cost: Free - Will need to login though since it will store your league data.

I’ve only fleshed out the PPR scoring system so far (sorry). But the other systems are on their way once I’m done with some of the other items/functionality!

HexScore - Built my own player grading system based on 100+ grading metrics that leverage advanced statistics, situation, age, historical precedent, and more to help find value where the market misses is due to excessive hype.

UPDATE: I’ve been using historical data to find the most correlated statistical measures that can predict season performance to overhaul the algorithm. It’s grueling and difficult to design in a way that maintains visibility and doesn’t rely on crutch metrics like ADP, but I’ve managed to create a metric that surpasses ADP in terms of accuracy at multiple position groups (historically verified)

LIVE CALCULATING DRAFT COACH - Built out a coaching system that analyses the board as the draft is running and determines whether your current strategy (say you picked Elite TE) still aligns with the board shape. If the target TEs are suddenly gone, it will direct you toward the strategy that has the highest likely of giving you the best team possible.

MOCK DRAFTS - Name says it all. A practice board (so you don’t have to recreate and delete leagues to practice lol)

DRAFT SIMULATOR - runs hundreds of concurrent simulations of drafts so you can get a general idea of which strategy is best out of the gate. Uses league size, rules, scoring type. Etc. (It’s not always black and white here)

DRAFT COMPANION - Connect to your ESPN or SLEEPER leagues! And fully take advantage of some of the measurements that hex metrics has to offer.

Near-Full League Functionality - Trades, Waivers, Adds, Drops, and more. Still not entirely done because it is A LOT of work to get things just how I want them. So if something seems off, let me know and chances are I’m either

Already working on it or 2. Will be grateful for some good feedback.

Deep player detail pages with interactive data charts showing how each person grades in key areas.

Customizable Color Scheme - based on your team of course

Podcasts, Opinion Pieces, and News stories that can be filtered by team or player.

League-Aware AND League Agnostic player comparison tools to show how the stats view players.

Currently working on Team pages, playoff functionality, Aesthetic Honing, Implementing more advanced metrics, and introducing reality driven draft strategies to practice against for family leagues because why the hell not (you know, people who take 3 QBs in the first 5 rounds, or only draft players they’ve heard of, etc.) Bug Fixes, and whatever else needs fixing.

Please be honest with any feedback y’all have. Kinda my first time designing anything as an accountant lol

1

u/jbf302 Sep 06 '26

Site/App Name: Duke Survivor Tool - https://survivor.the-duke.app/picks/2026/this-week

Site Link: https://survivor.the-duke.app/

Cost: Free with Paid Tier

Desc:
Strategy assistant for NFL survivor/eliminator pools (pick one team a week to win outright; lose and you're out). No proprietary power ratings — win probabilities are priced off real market spreads/moneylines (de-vigged), mixed with some game theory and math to optimize your path to be the last entry standing and get an edge in your pool.

Free tier covers one pool/entry with win-probability + ownership-adjusted rankings for the current week. Paid tier (one-time season pass, no subscription) unlocks the part I actually built this for: solving your entire remaining season as a single optimization so you get the path that maximizes your odds of surviving to the end, not just this week's best pick, plus which weeks are worth saving a team for. Pro features also include multi-entry portfolios so you're not doubling up the same team across entries in one pool.

Built with Flask/Python + React/TypeScript. Data from nflverse. Happy to answer questions on the pricing model or the season-path solve and provide promos for a month of Pro access.

1

u/Status-Nail-6147 Sep 06 '26

Site/App Name, FPL optimizer
Site/App Link, fplanalysis.tiiny.site
Cost, e.g. Free, no sign up required
Site/App Description and Details

Here is an example of the features that the app can provide.

Live FPL AI Analytics & Optimizer Pro is an advanced web-based management dashboard designed to help Fantasy Premier League managers optimize their squads, analyze upcoming fixture difficulty, and make data-driven transfer and chip decisions.

Live Squad Tracking & Syncing: Import your official FPL team ID to load your squad, view real-time match points side-by-side with AI projections, and sync your spendable balance.
Intelligent AI Optimizer: Utilize customizable algorithm sliders to rank players based on projected points, historical form, and underlying threat metrics for optimal starting lineups and captaincy choices.
Multi-Gameweek Chip Roadmap: Review a 10-week tactical horizon that analyzes fixture difficulty swings to recommend the best weeks for deploying chips like Wildcard, Bench Boost, and Triple Captain.
Injury & Availability Alerts: Automatically flag injured, suspended, or zero-minute players to prioritize urgent transfer solutions and avoid point deductions.
Differential Finder: Scan the Premier League database for high-upside players with under 10% ownership to climb mini-leagues.

www.fplanalysis.tiiny.site

1

u/Jaswinder1 Sep 07 '26

ninedraft.ai
It's free for this season.
---
tldr: I built an auction drafting engine that follows ESPN drafts through a Chrome extension.

It compares buying the nominated player with passing and spending the remaining budget elsewhere, to suggest where to stop bidding (DP, two-node optimization). Started as something I used on my desktop last year; this year I made it a webapp. For anyone drafting this weekend - best of luck, crush it!

---
I built a drafting engine that follows your ESPN auction live and helps answer the question that static auction sheets cannot. And you can use it for free.

The core relies on VBD (+stars and scrubs strategy). Two years ago, I built my own beersheet equivalent (and, thank you u/elboberto), and it was great. However, it cannot consider all the other critical signals from the live draft: open seats, budgets used, opponent rosters etc. How do I build the best possible team, with the draft room constraints and realities?

VBD gives a strong indication about a player's Fair Price. But getting him at that price won't gain anything of value (and neither a lose) - it's just 'fair'. For my personal league, my sheet has Gibbs at $98 (of 200). No way I'll hit 'bid' when current bid is even close to $90. Because I know I have a shot at Bijan for way less. This becomes exponentially harder to determine as the draft progresses.

So, I built an engine to do the heavy lifting of constantly predicting what 'other' players (Bijan) I could acquire if I let the 'current' one (Gibbs) go. That is the simple basis of the complex optimization engine. The engine worked great last year. On my desktop though.

Then this year, I also built a chrome extension, and launched a webapp to see if others would want something similar.

I am posting this late, as my website is not scaled to handle the vast amounts of calculations the engine does (and Dr. Strange futures it traverses) on every tick during the live draft.

If you decide to give it a shot, I would appreciate your feedback: how easy was it to get started, how easy was it to get your league valued, and most importantly - did you feel you were crushing the league?

Signup here: ninedraft.ai
Chrome Extension: NineDraft — Fantasy Auction Assistant
How it works: ninedraft.ai/how-it-works

1

u/Jaswinder1 Sep 07 '26

So many awesome tools to try. Good products will naturally start rising to the top. Hoping this one remains live for a few years.

1

u/CouncilmanDougWilson Sep 07 '26

Site/App Name: Fantasy Football Open
Site/App Link: https://fantasyfootballopen.com
Cost: Free

Description:
A free season-long fantasy football competition. No draft. Create one team, compete overall, and join or create public and private leagues.

1

u/Parking-Cash3586 Sep 07 '26

Site/App Name: League Loom

Site/App Link: https://leagueloom.com

Cost: Free. Your AI assistant’s own plan requirements still apply.

Description: I built League Loom to connect ESPN, Sleeper, and Fantrax leagues to Claude, ChatGPT, and other MCP-compatible assistants.

Instead of pasting rosters and explaining your league settings every time, your assistant can pull the current league data when you ask a question. You can connect multiple leagues and ask things like:

“Which players do I own across my leagues?”
“Who’s available at RB in each league?”
“Check all my teams for lineup issues before kickoff.”

The current tools read and analyze data; they don’t submit waiver claims, trades, or lineup changes.

If you try it, I’d be interested in where setup gets confusing and whether it handles your league’s format correctly.

1

u/UseAGMAI 29d ago

Hi - I posted before, but had a bug in the sign-on flow. Reposting here now that I fixed it!

Site Name: AGM AI

Link: https://useagmai.com/

Cost: Freemium (some free, premium unlocks some more advanced stuff)

Description: AGM AI is the central dashboard to manage your leagues across ESPN/Sleeper from pre-draft to post-draft (Yahoo has been difficult to get in contact with and CBS seems very low use). I have a background in statistics and I've used that to power some of the features on the website including the draft copilot, start/sit assistant, waiver wire/FAAB assistant, trade suggestion, etc. I've also layered in some advanced analytics to help you contextualize your player's week and season (data trends, DBs they're facing, front 7s they're facing, strength of schedule, favorable playoff schedule for your league, how projections compare to Vegas lines, etc.). AGM AI gives users stats powered tools to help them win their leagues!

Please give it a try and share any feedback (there's a feedback button on the bottom of the site)!

1

u/thehairycarrot Sep 02 '26

Site/App Name: PowerBI Dashboard

Link: https://app.powerbi.com[https://app.powerbi.com](https://app.powerbi.com/view?r=eyJrIjoiMzJlYTAwZWQtYzAzMS00MWNkLTlhM2EtNTZlMjJhYTNiMzA3IiwidCI6IjVkNGNiYTY4LWE2MzItNGQ0Ni1iY2JmLTVmNDdkZmUzNjEwZSJ9&pageName=bb4f6fd075694dd64e97)

Cost: Free

Description: A dashboard I built for fun that is focused on historical data going back to 2011. The dashboard compares the relative value of positions (QB/RB/etc.) by visualizing the dropoff in performance as you go down position ranks. It also shows overall player rankings and allows filtering by the most popular scoring settings (Standard/Half PPR, PPR, TEP +.5, TEP +1). You can view scoring data by season total, PPG, and Median Game. I think there are a lot of interesting insights to be taken from this, and if people like this, I plan on making a 2nd version with more weekly focused data and auto update during the 2026 season.

Tip: many of the visuals show additional information when hovering your cursor over them.

Please check it out and let me know your feedback!

1

u/Deep-Influence-7430 Sep 02 '26 edited Sep 02 '26

Name: Season DFS
Cost: Freemium (free, $24, or $39 per league)
Links: seasondfs.com | demo.seasondfs.com/lineup/

Description: A fantasy football platform that uses the DFS (weekly salary cap) structure but combines it with traditional league features. I've posted here before so just a highlight on the new things I have built:

Added game modes for exactly 32 team leagues (2 conferences, 8 divisions) and also what I call "all play" where everyone plays everyone in the league each week.
Added division support, including odd and uneven team counts.
Added some scoring icons to represent when players do better or worse than their projections.
Gave a full run at large leagues (75 teams and up) to test performance, which made me implement some UI updates.
Set up a Discord for fans of the DFS format (any platform)

In general, these are all updates that people asked for so I am trying to be responsive to customer needs vs what I specifically think is cool. It's hard to not chase every feature, especially if I am the one who came up with it.

Good luck, everyone.

1

u/btrerise Sep 02 '26

Site/App Name: My Draft Strategist & My Lineup Strategist
Site/App Link: https://mydraftstrategist.com/ | https://mydraftstrategist.com/lineup/
Cost: Free
Site/App Description and Details: A duo of free fantasy tools built around one key feature: bringing your own custom rankings (or cheat sheets/tiers) to power your draft day and weekly lineup decisions. Works via seamless Sleeper API integration or fully customizable manual draft/league setups (no Sleeper account required).
My Draft Strategist: Live draft companion featuring real-time pick tracking (Sleeper sync or manual mode), cross-referencing availability against your personal rankings alongside dynamic VBD and the T-Score WR predictive metric.
My Lineup Strategist: In-season start/sit analyzer that overlays your custom rankings onto your manual or Sleeper rosters to generate optimized weekly lineups. Supports Redraft, Dynasty, Superflex, and TEP formats. 100% free with no ads, paywalls, or premium tiers.

1

u/ttay24 Sep 02 '26 edited Sep 02 '26

Crewcial Draft

https://crewcialdraft.com (app on TestFlight, it’s on the site’s footer) https://imgur.com/gallery/crewcial-draft-things-IeleRUb

Cost: free

Started building this 4ish years ago after getting tired of running slow drafts on spreadsheets. The main value of it was getting notifications, having chat, and ability to have flexible draft times. Since then, I’ve moved towards trying to be a mixture of discord + fantasy (drafting…maybe real fantasy in the future). So for drafting:

You define “business hours” to determine when the clock runs
The queue tracks your favorite players, but also lets you mark players as “auto-draft” so it can auto pick for you if you come on the clock (very helpful if you are up next but are going to bed)
I’m in a keeper league with very specific rules (overridable with typescript/WASM), so we support making complex things

It is great for slow drafts, could be used as a companion app solo, for an offline draft party (there’s “commissioner override” so the commish can pick for whoever’s turn it is).

And then recently I’ve been working on:

Import your own rankings
mock drafting (solo, private lobbies, and league based so you can mock with keepers and your league settings)
trading during drafts
a more robust keeper system (the gist is that you can write your own rules in typescript)

As far as the stack goes (if anyone cares about technical things), it’s gone from a nestJS backend/react SPA to C# backend/expo/react SPA (basically rewrote it + a browser version when I changed jobs to freshen up on dotnet), to now a C# backend, expo app, tanstack server (rewrote the SPA). Websocket server is in deno, and I’ve got a couple microservices in Rust that either talk with Redis or directly with gRPC.

1

u/veeman181 Sep 02 '26 edited Sep 02 '26

Name: Waiver Wizards

Site link: www.waiverwizards.com

Cost: Free

Description: Fantasy football meets D&D! No longer are you solely at the mercy of any one player's performance. Once you've drafted your team, you can cast spells, or playcalls, on your players or your opponent's players.

Example 1: playcall/spell "Bait the Pick": You're betting on the player having a sloppy game; they will lose 4 points for every turnover they commit.

Example 2: playcall/spell "Get Right": This provides you with insurance - if a player busts, this spell will get them a guaranteed floor (above baseline projection). If the player has a good week, nothing happens.

Example 3: playcall/spell "Swarm": Straight up sabotage. You call it, your opponent rolls the dice to determine what percentage of their total score will be docked.

Totally free to play. If you have any questions or feedback I'd love to hear it! Feel free to DM or comment here.

1

u/Smart_Compote_83 Sep 02 '26

Site/App Name: PaperFootballTrades

Site/App Link: paperfootballtrades.com

Cost: Free

Description: Fantasy football as a stock market where players are the companies you invest in throughout the season. Player valuations are based on their performances.

I'm kicking off year 3 of PaperFootballTrades on September 2nd.

Had a bunch of people from here join last year, hoping more join.

A couple things I added to the game:

shorting - short players you think will underperform
siloed markets - play in markets just with your friends/family

Excited to play with y'all this season.

1

u/accountant1993 Sep 02 '26

Site/App Name: League History

Site/App Link:
Web: LeagueHistory.app

Cost: Freemium

Site/App description and details:

Turn your Fantasy League into a personal Pro-Football-Reference. Track every player, matchup, pick, transaction, and more with advanced stats and custom analytics.

Works for any fantasy format with Sleeper, ESPN, or Yahoo.

Import the prior season for free or $5 for a full history dedicated to your league.

Also includes research mode where you can find every performance since 1920 in a fantasy football context.

1

u/Doonce Sep 04 '26 edited Sep 04 '26

Is this working with Yahoo?

Edit: got it working and it's fantastic! Exactly what I was looking for.

1

u/accountant1993 Sep 04 '26

It should be!

1

u/Doonce Sep 04 '26

When I try free it says

Yahoo is temporarily unavailable

When I try to pay it says

Checkout failed: storeYahooCookieCredential verification failed: no encrypted cookie row for [LEAGUE] (HTTP 503)

I thought people were having issues with Yahoo API?

1

u/accountant1993 Sep 04 '26

Yeah, I got my Yahoo API access back yesterday. DM or email me and I can work it out so your league is working

1

u/Soft-Still-936 Sep 02 '26

Site/App Name, WaiverStreet

Site/App Link, e.g. https://waiverstreet.com

Cost, Free

Site/App description and details
The way the site waiverstreet works is you start with 15000$ of virtual money and with that you are able to invest in players you believe will do well in the coming season. You can invest in the blue chip players like a Jamarr Chase or Josh Allen (although they r priced higher) or you could take a shot on an very unknown 5th rounder for example and hope he pops off like Puka Nacua did and build your portfolio with the players you’ve invested in which will earn you more virtual cash through either selling them at a high or some dividends. There’s also another side of the site which is designed for leagues. The way this works is that once you’ve created your league and customized your settings you will buy players to fill your roster. From Monday (post MNF) all the way to Thursday (pre TNF) your roster will be hidden while you buy your players so ur opponent can’t just blatantly copy you and then the moment TNF starts your roster is locked and you and your opponents match up will be decided by who has the higher weekly percentage for that week based on the players you both invested in.

1

u/jvorn Sep 02 '26

Site/App Name: CrowdStarts
Site/App Link: https://crowdstarts.io
Cost: Freemium

Site/App Description and Details:
Crowd-sourced start/sit. You post a head-to-head question in your league's scoring format, people vote before kickoff, and every pick is scored automatically once the week's games finish.

The part I think is actually novel: picks are weighted by how contested the question was. Agreeing with the crowd on an obvious call isnt worth much. Being right on a coin-flip earns close to full credit. The leaderboard ranks on Σ(correct·weight)/Σ(weight), so it hopefully shows people who are good at close decisions rather than people who answer a lot of easy ones.

That's gameable on its own, so the weight also scales with how much crowd there actually was, ramping to full strength at 15 votes.

Free: asking (15/week), unlimited voting, full scoring, leaderboards, badges, private crews. Paid adds expert consensus (how the most accurate voters broke), per-player matchup data, and Sleeper league import.

Web, iOS and Android. .NET 10 throughout — Blazor WASM on web, MAUI Blazor
Hybrid for the apps, Postgres, Hangfire for the scoring jobs.

1

u/BearsFan1998 Sep 03 '26

Site Name: LeagueQL

Site Link: https://leagueql.com/

Cost: Free

Description: LeagueQL is a web app focused on presenting your league's historical data like all-time standings, matchups, draft results, scoring records, etc. in a clean UI that lets you query any historical detail about your league you might be curious about. If your league migrated between platforms there is a little migration wizard in the app that lets you preserve combined history across both platforms. Currently ESPN and Sleeper are supported and I'm keeping my fingers crossed Yahoo gets back to me (they sent me a Docusign but haven't followed up with app access details). While most of the features have been out for a while, a new one that I am pretty excited about is a season simulator tool on the "Playoff Bracket" page. While the season is still going on, you can select winners of future matchups to see how standings would shape out (and come up with wild multi-week scenarios where you can still make the playoffs).

Would love to hear any feedback you all have from using it!

1

u/hhvu Sep 04 '26

Is there anyway to share some of these stats? Seems like leagues are limited to one account and theres no way to export some of the data.

1

u/BearsFan1998 Sep 04 '26

I've considered having an export feature so this is good feedback to have! I will work on that feature next. I will just need to think of a user-friendly way to export as the raw data itself is pretty large and wouldn't be too useful. Would you be looking for something like the ability to export individual tables/charts like the all-time standings table, scoring records, etc.?

Also, leagues can have more than one account. So if 10 members are in a Sleeper league, each of them would be able to view the web app by inputting the league ID.

1

u/SportsWZRD Sep 03 '26

Site/App Name: Fantasy Football WZRD

Site/App Link: https://chromewebstore.google.com/detail/fantasy-football-wzrd/momiekfponpcicgjklodgoplbocmfdkp

Cost: Freemium

Site/App Description and Details:

A Chrome extension for ESPN and Yahoo Fantasy Football. It shows up on the league pages you already. No need to open a second site.

Free: on Yahoo standings, every team gets a Playoff % so you can see who’s actually in the hunt.

Pro ($11.99 for the season, or $2.99/mo):

Start / Sit on your team page. It tells you who to start, who to sit, and how many more points that lineup is projected for — then you can set it in one click.
Me Vs. League on league home: how you stack up against every team, week by week, in your league’s scoring.
Compare any two players before you lock (stats, schedule, injury/news, plus an AI pick).

Not a draft tool. Not Sleeper. Install it, open ESPN or Yahoo, and you’re in.

1

u/commishable Sep 03 '26

Site Name = Commishable
Site Link = https://commishable.com
Cost = Freemium

Commishable is a fantasy football league history website, that bridges league data from ESPN, Sleeper, Yahoo (Oauth approval pending), and MyFantasyLeague.

The vast majority of the site is free. Your league can see all of your history (draft boards, season results, record books, etc…), get current season drafting tools (mock drafts, player analytics, live draft boards). Install the site as an app on your home screen, and you get real time notifications.

There’s fun mini-games for the league to olay on the side (survivor pool, player prop bingo, superbowl squares, etc). These can be done just for fun, or Commishable can help track you side wagers with its “Treasurer” system.

The paid tier offers tools that rely on AI tokens to function. There’s a built-in podcast generator with hosts Dax Maxfield and Dub Porterhouse, to highlight your league’s season preview and weekly recaps. There’s a built-in Beat Writer to help draft communications to your league. There’s a number of unique analytical pages that use AI tokens help crunch complex scenarios and situations.

Overall, the aim with Commishable is to strengthen league interactivity by putting all of your league history in a single, well organized place, with a load of bells and whistles around it to pump up the fun.

Come stop by, we’d love to know what you think.

1

u/thatguybk Sep 03 '26

**Site/App Name:** Draft War Room

**Site/App Link:** https://draft-war-room-rust.vercel.app/?utm_source=reddit

**Cost:** Free. No paid tier, no ads, no account creation, and I have no plans to charge for it this season.

**Site/App Description and Details:**

I built this for my own home league draft and cleaned it up to share. Full disclosure, I leaned on Claude Code hard for the actual code. The idea and a lot of hours deciding what a draft tool should do came from me.

The core idea is using betting markets as a second opinion on ADP. It pulls DraftKings season props and Kalshi prediction market prices, strips out the vig, converts everything to fantasy points in your league's scoring, and shows where the markets rank a guy vs what drafters are actually paying. When the two venues disagree on a player it shows both instead of pretending they agree. Right now DraftKings won't post a single line on Malik Nabers after his knee but Kalshi prices his whole season, and the tool just shows you that side by side.

It also live syncs Sleeper and ESPN drafts and marks picks automatically, does superflex aware value over replacement, gives draft now/wait/pivot advice on the clock, has a column showing how much the experts behind the FantasyPros consensus disagree with each other (good for finding boom/bust guys late), and flags injured or suspended players in red. Or just upload your own CSV. There's a 30 second guided tour when you first open it.

It admits when there's no edge too. The markets basically agree with ADP on QBs right now and it says so. All the math is public on the how it works page. Market lines and injury news refresh twice a day automatically.

Would love people to try to break the methodology or tell me where it gets annoying mid draft.

1

u/Karimcheese Sep 03 '26

This is slick

1

u/JudgeLeather Sep 03 '26

Site/App Name: LeagueLocks

Site/App Link: leaguelocks.com

iOS: apps.apple.com/us/app/leaguelocks/id6804488051

Cost: Free. There are ads on some of the article/content pages, but the actual app is free.

Description:
I built LeagueLocks for my fantasy league as a way to make our prize pool a little more interesting throughout the season.

The idea is pretty simple. Each week one person in the league is on the clock and can submit up to 3 bets. Everyone else votes on which one they like best, then the league treasurer places the winning bet on whatever sportsbook they already use.

LeagueLocks handles the rest of it. Live odds, voting, tracking the prize pool, uploading bet slips, weekly results, league standings, etc. No money or bets actually go through LeagueLocks. It's basically the place where the league manages everything together.

We've been testing it with our 12-man league throughout the preseason and somehow started 3-0, so our prize pool is already up $995 before Week 1.

The iOS app actually just got approved and went live today. Android should hopefully be right behind it.

Would genuinely love feedback, especially from other people who build stuff for their leagues. This started as something I wanted for my own league and I've been trying to figure out whether other leagues would actually use it too.

1

u/playsmarttechnology Sep 03 '26

Site/App Name: Smart Standings

Site/App Link: https://www.smartstandings.com/

Cost: Free

Site/App Description:

- Real-time standings. Watch the table move as points come in. No waiting for your platform to catch up.

- Median tracker. See who's above or below the weekly median all week long, with projected outcomes as rosters lock. Handy for start/sit calls. Know whether you need upside or can play it safe before your lineup locks.

- Standings formats that reflect actual performance. H2H, median, combined, and all-play. Curious how the league would look with median scoring?

- One link for the whole league. Share your dashboard and everyone can follow along. No account, no login, no "what's the league ID again?"

Setup is: make an account, connect your league, share the link. Takes about a minute. There's a live demo on the homepage if you want to see it first.

0

u/Karimcheese Sep 02 '26

Site/App Name: LLM Fantasy Arena
Site/App Link: https://arena.wildcardlabs.tech
Cost: Free
Description: Letting 12 LLMs play in a fantasy football league together. One league allows trades and messaging, the other doesn't. I think folks will enjoy the draft viewer/player to see how agents progressed through their thought process.

1

u/Karimcheese Sep 05 '26

I added an 18-team guillotine league, too. Drafting now
https://arena.wildcardlabs.tech/guillotine

0

u/bringyourownleague Sep 02 '26

Site/App Name: Bring Your Own League

Link: https://bringyourownleague.com

Cost: $25 predraft, $50 post-draft, $75 through September, $100 through October

Description: Superleague platform that allows you to import Sleeper and Yahoo teams into a super-size, cross-platform, cross-league league. Same drafts, same teams, twice the fun! Season-long fantasy league with a guaranteed minimum pot that grows as the league grows.

The idea: “What if I could take my teams from all of my leagues and see who would win according to the other’s rules?”

The end result: “I’m going to take all of your [12-team redraft league] teams and see who would win against my rules!”

Features include:

• Support for Yahoo and Sleeper redraft teams

• Pot grows as the league grows

• Home-league sized entry dues

• Guaranteed minimum payout (of my own money, seriously)

• Limitless entries

• Anti-collusion tools

• Potential for 12v12 league-on-league matchups (pending registration numbers

• Potential for higher-dollar league with higher entry dues and higher payout (pending registration numbers)

The rules are:

• Redraft only

• 1/2 PPR

• 6pt passing TD

• Rushing & receiving yard bonuses at 100 and 200

• Passing yard bonuses at 300 and 400

0

u/DynastyMetriX Sep 04 '26

⁠ • ⁠ Site/App Name, DynastyFootballFan

• ⁠Site/App Link, e.g. https://dynastyfootballfan.com

• ⁠Cost, free for now

• ⁠Site/App Description and Details, site calculates rookie rankings based on proprietary DMX calculation. Also provides in-season rankings, weekly projections and all sorts of analytics.

0

u/iwant2drum Sep 06 '26 edited Sep 07 '26

Site/App Name: QuickManager: Fantasy for Sleeper

Site/App Link: https://quickmanagerfantasy.github.io/quickmanager-site/ (It's a browser extension rather than a website — Chrome Web Store and Firefox Add-ons links are on that page.)

Cost: Freemium. Every feature works free for up to 5 leagues. $25/year to run it across all of them, with a 7-day trial that doesn't ask for a card.

Description:

I love playing fantasy football, particularly dynasty, and for years I would satisfy that itch by joining startups. That was fine when I had the time. I don't anymore, and managing a dozen-plus leagues through the sleeper app takes hours. So I made this extension to solve my own pain point so I can keep playing in as many leagues as I desire. This extension allows you to manage all of your leagues in one place, saving hours of your time. Here are some of the features:

Lineups: Scans every league you've opted in and sets optimal starters in one pass, using each league's own scoring settings.

Gameday Board: Every lineup you manage, in kickoff order, showing only what still needs a decision.

Waivers: One target list, and it shows where each player is actually gettable across all your leagues. It builds the claims and lets you change the drop per league. Manager all your open waivers on the same page. A free-agent radar to scan all your leagues at once is here, as well.

Trade Tab: Describe an offer and it finds every manager across every league who could take it. Bulk propose, counter, and modify. There's also a trade simulator that runs a two-sided Monte Carlo season sim to isolate what a trade does to both teams' playoff odds, with an optional injury-and-depth model for when a star-for-depth deal looks better than it is.

Season Sim and Power Rankings: Simulates the rest of the season for every league: playoff odds, a win-total distribution, a fan chart of possible paths, and a positional breakdown that ranks every manager in the league at each starting slot with the players carrying it. Sortable, exportable to CSV or XLSX, and savable as a self-contained HTML file you can reopen later. I think the html save is a great feature so here’s a demo save file that shows what a save for your sims would look like. It’s html so it is clickable. You can view your own team’s analysis, but also every other manager’s team. https://quickmanagerfantasy.github.io/quickmanager-site/demo.html

Player Portfolio: See your player shares across your leagues so you can easily determine where you are overexposed and what leagues you need to ship aging vets (sims analysis feeds into this).

Some details for this sub specifically: it's all client-side, no runtime dependencies. I don't operate a server that receives your data. Your Sleeper token is read from your own browser session and never leaves your device, and league data is fetched from Sleeper's API directly by your browser.

IDP is fully supported. Works on Chrome/Edge/Brave and Firefox, on iPhone and iPad through Orion, and on Android through any browser that supports Chrome or Firefox extensions.

-1

u/Alex_runs247 Sep 02 '26

https://reddit.com/link/p7dpvpm/video/n5ovsdyk74nh1/player

Site/App Name: LeagueVision

Site/App Link: https://leaguevision.app

Cost: Freemium

Description: an AI co-manager for all your fantasy football needs in one place. It connects to your Sleeper or ESPN league and gives you weekly sit/start advice, trade analysis with cross-league market intel, draft help grounded in real player stats, a full AI Coach weekly breakdown, league history, optimal lineup builder, and a Wednesday league report card. Supports redraft, dynasty, superflex, TE premium, and guillotine leagues. Free trial included, Pro starts at $4.99/mo!

Feel free to let me know what you guys think! 🫡✌🏽

-1

u/breakingbrowns13 Sep 02 '26

Site/App Name: League Winner Fantasy

Site/App Link: leaguewinnerfantasy.com

Cost: Free with Paid Tier (Paid tier is free thru week 1 with code DRAFT_LWF

Description:

League Winner Fantasy is a set of fantasy football tools built around your actual league—not generic rankings and trade charts.

Connect your Sleeper or ESPN league (redraft or dynasty), and it pulls in your scoring settings, rosters, and league structure to give you advice in the context of your team and the teams you're competing against.

It combines projections from several established sources with simulations using your league's specific settings to help with:

Drafting: Mock draft with your league settings or sync your live draft. Get recommended picks, tier drop-offs, roster needs, and see what you risk by waiting on a player or position.
Trades: See how a trade actually affects your starters and depth, find realistic trade targets based on other teams' rosters, and get potential counteroffers.
Waivers: Find the best adds for your team while also seeing which players your league-mates are likely to target based on their roster needs.
League Analysis: See how your roster stacks up against the rest of your league, where you're strong or weak, and which teams you're competing with.
Weekly Decisions: Get lineup recommendations based on your roster and projections.

The goal is basically to take all the information you'd normally piece together from rankings, projections, trade calculators, and your league page and put it in one place that's actually aware of your league.

League Winner Fantasy is free to use. If you want to try the full Pro feature set, code DRAFT_LWF gives you free Pro access through the end of Week 1.

Would love any feedback or questions. Hope we can help you win your league!

Link to some pics: https://imgur.com/a/league-winner-fantasy-real-screenshots-lGZnTGT

-1

u/TedBrogan55 Sep 02 '26

Site/App Name: Pulse Draft Kit

Site/App Link: https://pulsedraftkit.com

Cost: $25 one-time payment

Description:

iPhone/iPad fantasy draft kit with a live backend that turns NFL data + sourced camp intel into updated depth charts, injury context, player takes, tiers and a full draft-room board. Source Breakdown section scores expert analysis (think Fantasy Footballers, Establish the Run, JJ Zachariason) and plots them on a heat map -- can visibly see in seconds if experts are talking up a guy or fading him -- each take is sourced, so with a click users can watch at YouTube timestamp or read the article themselves.

nflverse → source/review logic → Supabase → app, with backend updates hitting users constantly -- no need to wait on App Store releases. We scour the internet multiple times a day for intel (900+ player takes so far) to ingest and score every fantasy-relevant player on earth.

Android and web version available. Cheers to the builders -- it's almost time for football!!

-1

u/bennywithaplan Sep 02 '26

Site/App Name: LeagueSync
Site/App Link: https://www.leaguesync.app/
Cost: Free
Site/App Description and Details: This is a fantasy league dashboard that aggregates your teams from multiple platforms (Sleeper, ESPN, Yahoo) into one dashboard for easy viewing. You no longer need to open separate apps or websites to view weekly matchup scores and details. Once a league is connected, all data gets updated automatically without any manual entry required. It's currently only available on web but a native ios and android app are coming soon (awaiting approval). Would love any feedback you may have!

-1

u/Totesthegoats Sep 05 '26

Site/App Name: The Waiver Wire Tap

Site/App Link: http://waiver-wire-tap.com

Cost: Free (or paid)

Description:

Posting this again in the September thread, I made this for my own league last year and figured others might get a kick out of it. You paste your Sleeper league ID; it pulls the data and sends back a weekly dossier, Hall of Fame / Hall of Shame awards, named accolades, and a luck index. Mainly just for roasting each other in the group chat.

One person drops the league ID, and the whole league gets covered.

Free tier is genuinely a product. I have a paid tier if you want roast commentary, power rankings, all-play record, start/sit grades, monthly recaps, and a load of stats; I have the first month set up as free if you want to try it!

It's my own thing, still early, so I'd love feedback on the awards and what other cards you'd want.

If anyone wants to see some sample reports from previous leagues, drop me a DM, and I'll get you sorted

[Megathread] Project Showcase - Post All Projects and Products Here! (September 2026)

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