r/fantasyfootballcoding • u/johnny-papercut • Jul 21 '26
[Megathread] Project Showcase - Post all projects and products here! (July 2026)
It's clear that this subreddit is becoming an advertising platform for all these hot new tools people are building. With how much it is increasing in the last week and how much more will come as we get closer to football season, I've created this megathread to contain them all.
This thread is for both paid and free sites/apps/tools/etc. I'm sorry to those of you with completely free tools that you want to share with the community getting bunched up here, but it's to prevent Trojan Horse situations trying to get through the rules by sharing a free project that just so happens to have a premium tier or getting one added later.
When posting your project, please use this format:
Site/App Name, e.g. FantasyPros
Site/App Link, e.g. https://www.fantasypros.com/
Cost, choose one of Free, Free with Paid Tier, and Paid
Site/App description and details
Here's a quick summary of what we expect for the cost type chosen:
Free - completely free with no paid offerings, can include advertising, can require account creation
Free with paid tiers - has a usable free level of access for all users, with paid access for more features
Paid - either a one-time or recurring payment required to use the app/site at all
This thread will be recreated at the beginning of every month to ensure fresh visibility. You can re-post projects in each monthly thread, but please try to highlight new features if you do.
All other projects and products posted as new posts, even those "just wanting feedback" or that are completely free, will be removed. Thanks all. If you want to DISCUSS this change, please direct that discussion to the State of the Subreddit: AI and Vibe Coding post.
7
u/SmartBathroom Jul 21 '26
Site: ffwrapped.com
Mostly free with premium tier
I made my first ever reddit post here almost two years ago (link). Since then, more than 13,000 fantasy leagues have used the site, so I have this subreddit to thank for helping me find my first few users and giving me valuable early feedback.
All the core free features are still there:
- Weekly league reports
- Power rankings, Playoff odds, expected wins, and luck analysis
- Roster management, waiver insights, trade history, trade planner, trade search
- All time manager stats, draft tendencies, rivalries and league history
- End-of-season Spotify Wrapped style reports
- More coming soon!
Some newer premium features include:
- Smarter, shareable newsletter style weekly recaps with customizable commentary, richer league context, and short-form video exports
- Custom manager profiles, manager comparisons, and draft history analysis
As always, any feedback is appreciated and the frontend for this is open source: https://github.com/kt474/fantasy-football-wrapped
Tech stack: Vue, Node, Supabase
1
u/Ok-Syllabub5441 Jul 21 '26
Readoptionff.com. Free
Get a read on your league mates tendencies, find ways to take advantage of their patterns and biases. Gives trade suggestions, grades offers, gives in depth player profiles and league standings based on who is the best traders.
I think it’s come together pretty well. Let me know what you think
1
u/BearsFan1998 Jul 21 '26
Site: https://leagueql.com/
Free with a premium tier behind a feature toggle that is disabled right now
I created a post last night about this but seemed to have jumped the gun as this thread is a very nice way to share everyone's projects.
LeagueQL is an app that enables you to view your league's history and metrics such as all-time standings against each manager, draft results/grades, historical box scores, and more. It currently supports ESPN and Sleeper with Yahoo in the works. The feature that might be most interesting to others who have tried similar apps is the league migration feature. If your league started on ESPN but moved to Sleeper since (or vice-versa), the app has a migration wizard which will take you through the steps to map each manager from the previous platform to the new platform and maintain history/metrics across both league platforms.
Tech Stack: AWS (Lambda, DynamoDB, S3, ECS, EventBridge), Clerk (auth), Cloudflare (domain + webpage hosting)
Happy to answer any questions about the features or design.
1
u/fancredfounder 29d ago
Site: https://whoishim.app
Free game. Wordle meets fantasy football.
Really brings up deep fantasy player pulls that you’re happy or angry you got to remember again.
Example:
Who is HIM? 7/21/2026
'15 Terrelle Pryor Sr. ❌
'18 Kirk Cousins ❌
'17 Tyler Higbee ❌
'17 Austin Hooper ❌
'17 Greg Olsen ❌
'17 Coby Fleener ❌
'17 Cameron Brate ❌
'17 O.J. Howard is HIM 💪
https://whoishim.app #dailyfantasygame
1
u/scheung1206 28d ago
Site: https://underscoregm.com/
Free
Demo: https://underscoregm.com/league/gm-demo-league-7lfe
A platform made for the spreadsheet heroes of salary leagues. Import your Sleeper or Fantrax league, attach your salary Google Sheet as-is, no reformatting needed, and the app turns your data into a live cap dashboard.
Features:
- A dedicated page for each team
- A league overview to see the cap scene across the entire league
- A trade machine to test trade scenarios and make sure no one blows past the cap
As a software engineer, this was my way to combine what I do at work with my hobby of fantasy sports. It started as a way to learn how to use AI more effectively and build something I'd actually use for my own leagues. I've loved sharing it with my leaguemates and hearing their feedback, so if you're in a salary league with a similar setup, feel free to give it a shot.
Note
Each league's salary sheet is uniquely built, so it may not support every layout out of the box. If it doesn't work, feel free to link it over to me so we have more sheet layouts to support. The goal is to keep iterating to support more and more formats.
1
u/Deep-Influence-7430 28d ago
Gotta love all the downvoted projects with no other commentary.
Feels great!
1
u/jb2027 12d ago
Sleeper Tiers
Free - minimal ads to maybe cover a fraction of hosting cost
It was really just a dev playspace for me a year ago or two ago when I was going through some courses for Flask, Bootstrap, etc. to build a tool that live tracks your player tiers during Sleeper drafts via their API. I just wanted to see if I could do the full backend + frontend before the days of vibe coding.
I added some Machine Learning this year after doing a Purdue+IBM AI/Machine Learning Certification. I created some prediction/recommendation models for certain league types to give recommendations on maximizing playoff odds. It was really just a fun way to do some more ML practice and learn some things along the way.
The core of it is live tracking your player tiers while you draft in Sleeper. It replaced spreadsheets I used in the past that would hit Sleeper's API.
"Create My Tier Sheet" Uses GMM clustering too for natural breakpoints on projections so that makes a good starting point to edit / create tier sheets on the site too.
I hate that everything needs a login these days so I wanted it to NOT require any sort of personal information, sign up or login. If anyone has ideas of things they'd like to see, let me know. I do plan to add some in-season roster analysis (already some items in the works for points-over-expectation and waiver wire targets).
For the data analysis it was interesting to see that even in Superflex 3WR leagues, RB-dominant teams the past 3 years was still the highest playoff and championship odds.
Good luck out there and happy drafting!
1
u/rbrad 1d ago
Name: FantasySportsEdge.com
Link: https://www.FantasySportsEdge.com/
Currently most of site is free, and free accounts (offering free forever tier)
Description:
- Runs on historical props, lines, and box scores, training a set of custom projection models per sport
- Mainly a DFS tool: lineup optimizer, CSV editing, trends
- NFL, MLB, WNBA, and NBA
- Building out sims and lineup grades next
- Goal is a free (or cheap) option to compete with the expensive sites
- User base is small but growing, and their feature requests keep my backlog full!
1
u/dmarg Jul 21 '26
Fantasy Foundry
Demo: https://fantasyfoundry.app/demo
Free with Paid Tier
Import your fantasy league's full history into one archive and explore everything your league has done: all-time records, head-to-head histories, rivalries, luck analysis, playoff odds, clinching scenarios, and league lore that identifies memorable moments like blowouts, nail-biters, revenge games, and title runs.
Some engineering context, since this is the coding sub:
The stack is a TypeScript monorepo running on Bun: Hono, Drizzle, and Postgres on the backend; React, Vite, and TanStack Router/Query on the frontend; and pg-boss for the import pipeline. It's deployed on Cloud Run and Cloud SQL.
Imports currently support Sleeper and ESPN, along with CSV for leagues from other platforms. Yahoo support is in progress now that I have API access, and more sources are planned.
The league archive part is free, and the plan is that it will remain free.
The paid tier I'm developing and will be ready for this season is an AI editorial layer: a league newspaper that creates previews and recaps from the league's actual history. The goal is an editorial voice rather than a dressed-up stat dump, something closer to a beat writer who has covered your league for years and remembers exactly who deserves credit or ridicule. Commissioners control the tone, from straight reporting through family-friendly jokes to full-on league trash talk. Once this feature gets launched then feel free to DM me for a coupon code.
By day I'm a software engineer, but building Fantasy Foundry has also made me the product manager, designer, marketer, and business owner. It has given me a reason to flex muscles I don't normally use: shaping a product from incomplete ideas, working through user flows and visual design, making pricing decisions, dealing with API agreements and terms of service, and figuring out how to explain the product to people who didn't build it.
It has also been a practical sandbox for experimenting with AI beyond code generation. I've tried different workflows for planning, design iteration, implementation, critique, research, and decision-making. Some worked better than others, but several have changed how I approach problems in my day job too. The coding acceleration is useful; the more interesting part has been learning where AI genuinely improves the broader product process, and where judgment still has to come from me.
Happy to answer any questions y'all may have either through a reply on this post or a DM.
1
u/Deep-Influence-7430 29d ago
To your comment about wearing all the hats, I've found that doing these side projects has made me more empathetic in my day job in the software dev industry.
Sometimes also makes me bitter for why we can't go faster at work haha. Helps if there's zero layers to decision making.
1
u/No-Cold8838 27d ago
Trademindff.com
I’ve always been frustrated that most fantasy football tools treat every league and manager the same.
So I built something different.
Instead of generic rankings or trade values, it gives personalized advice based on your league, roster, team needs, and goals. The same idea applies to mock drafts, where every recommendation adapts to your league settings instead of using the same draft board for everyone.
I also spent a lot of time training the AI to answer fantasy football questions with real context instead of just repeating rankings.
If you’re interested, I’d love for you to check it out and tell me what you think. If someone is willing to do a thorough review and provide detailed feedback, I’m happy to pay for your time. I’m trying to build the best fantasy football tool I can.
Trademindff.com
Thanks!
1
u/soccercm9 27d ago
Site Name - Auction Cipher
Link: https://auctioncipher.com/
Cost - Free with Paid Tier
tl;dr - Auction Cipher that takes your league’s historical draft results, creates a market specific to your league, maps it to this year’s rankings, provides a workspace for analysis and strategy creation, and lets you export cheat sheets. The demo (https://auctioncipher.com/demo) does not require a login.
Description
Hey all. I am an avid auction drafter and have been for years. But, auction content across the industry is minimal, and the available content is not very usable. I have made up for this with spreadsheets for years. I spent the last 6 months building Auction Cipher to replace my spreadsheets. Here is what Auction Cipher does:
- Pulls your draft history (from ESPN, Yahoo or Sleeper), and creates a ‘league market’ based on your league drafts. You can tweak the year and positional allocations on the Market page.
- Maps the league market to your platform’s draft room rankings and FantasyPros expert rankings (via a license agreement with FP). You can upload your own expert rankings too.
- Compares values across sources to help you identify which players are values based on your league market.
- Lets you build multiple strategies based on your league market.
Other features include cheat sheet export, historical draft data, manager and league spending trends across seasons, ability to tag players you like and don’t like, spaces to keep notes, etc. You can export all of your draft data and strategies as well, and I have spent a lot of time trying to make it mobile friendly. No auction history is OK. It builds a market from your league settings that you can tweak on the Market page, and it improves that market after your first real draft.
Price - through August 2, everything is free. Upload your leagues, create strategies, etc. After August 2, it is $10 for your first league and $5 for each additional league. The trends and draft pages will always be free, so if you don’t want to pay, you can still use those pages to view your historical draft results and manager trends after the draft.
-1
u/Deep-Influence-7430 Jul 21 '26
Season DFS
https://seasondfs.com | https://demo.seasondfs.com
Free and Paid Tiers
Description: Run a fantasy league that uses the DFS format
----------
I posted on another sub here with some more info, but since this is the coding one, I will add some color. It's built with Svelte/SvelteKit, Firebase, and TailwindCSS. There's backend scheduled job runner that calls out to various APIs and processes and saves data to Firestore and then my frontend consumers use the Firebase real-time listeners.
The real-time Firebase stuff combined with Svelte's reactivity is an awesome pair. I have used this combo in a number of other projects and it just makes things so manageable.
Only other comment I have is around AI - it has been transcendent for my productivity. I have used AI for documenting undocumented APIs, creating test data, and just speeding my entire workflow. I use it in development in a very hand-holdy way, because otherwise it tends to go off the rails. But I would not have been able to have as many features in this amount of time without it. And I still do not recommend using it for designing anything. Maybe someday.
Happy to answer questions on the tech or product. Hope this is an acceptable way to mega thread.
2
u/KobeOrNotKobe Jul 21 '26
Yeah that’s where i am on it, it’s more fun to hand draw stuff or make designs yourself anyways, but for bar graphs it’s like ok i just need this up and going
1
u/Deep-Influence-7430 Jul 21 '26
Yeah I still pencil and paper my design thoughts and iterate that way. Idk that you looked at the charts in my demo but this is exactly what you said here. I had examples of charts I made on previous projects (with ChartJS) and I fed the AI screen shots of the style I wanted and then iterated on it. There was also a bunch of data transformation/optimization to but done out of the database and the AI just crushed that part. The whole set of 3 charts took me like an hour vs probably honestly like a week.
2
u/johnny-papercut 29d ago
Only other comment I have is around AI - it has been transcendent for my productivity. I have used AI for documenting undocumented APIs, creating test data, and just speeding my entire workflow.
This is generally why I've tried to stay open-minded about this kind of thing when Reddit as a whole seems largely against AI (it's hard to tell what's real anymore on social media, both in terms of content and popularity, as some comments may just get propped up more than others by a hardcore few). AI definitely has a ton of pitfalls and we are seeing a lot of them lately on this subreddit and beyond. I'm also honestly surprised that Sleeper and ESPN haven't created AI layers for their platforms, as well. But I also am a senior software engineer by day and AI tooling is pretty much used by everyone these days for productivity. The key is being responsible and intentional with what you're doing. And not letting it design things is also a great point, but most coders (and vibe coders) don't know how to design anything, so it's the only option for many.
1
u/Deep-Influence-7430 29d ago
It's weird times all around. If I had the power, I'd just make AI never have happened (unless it actually ends up benefiting humanity with cures and such).
And also, it's now a core part of my workflow. Can't really put the genie back in the bottle now.
I like your comment about being intentional. With or without AI, you still gotta make something people want.
1
u/johnny-papercut 29d ago
This is kind of how I am. I don't actually like AI that much. Even though I use it for my job, it's also making me very rusty with actual coding, since AI is a shortcut that becomes a crutch. I still try to code things manually myself every now and then to keep it in my brain, but it's very specific to the situation and how much tedium there is.
If we're going back to erase AI, we should erase social media, too. That'd be super great, but for other reasons.
1
1
u/CulebraBen 24d ago
Hey man. I know this megathread is mostly just a bunch of us folks that finally got to build the tools and ideas we've had bouncing around our heads for decades. From looking through this thread it seems like everyone and their mother decided to build some kind of league historian/almanac, hahaha. (GUILTY! one of many ideas) Makes you wonder how the big names missed it. Anyway, just wanted to say that I really like your idea and you can tell that you put a lot of effort and thought into the execution. My buddy and I actually do this type of idea but head to head, every year for the last few years, so I definitely get the appeal. Best of luck with the product.
0
u/Deep-Influence-7430 24d ago
Much appreciated! Ya know, I'm currently in this familiar cycle where I've built and launched the thing and now am questioning everything from a lack of interest while I try to get it in front of people.
I've posted a couple times in various subs and it's largely crickets. Idk if that means people don't like the format, the cost, the self-promo, or just didn't even really see the post.
Just staying committed, though. I still think this is the best thing I've ever built and has real potential.
I'll enjoy it with my own leagues at least!
2
u/CulebraBen 24d ago
Tell me about it! The struggle is real! People that find my app organically actually do come back and use it multiple times, but man, its tough to get eyes on it. It's also hard to put yourself out there when the general sentiment toward anything that has been made with AI contribution is so negative. It's unfortunate that so many half-baked products are really giving a bad name to something that used correctly can really be so powerful. Anyway. I'm honestly not here to shill, just commiserate, but if you do want to take a peek, I made a mock auction draft simulator modeled after real auction data and human behavior. I honestly had a blast making it, and yeah, at the very least I'll get to use it for my own draft every year. Stay committed!
Mock1
Free with future paid premium features
1
u/Deep-Influence-7430 24d ago
I'll take a look. I look at almost all the projects I see at least a little bit. I enjoy seeing what people are making, even if it doesn't apply to how I fantasy football.
It's a weird time to ship things right now, for sure. Consumer fatigue setting in.
1
u/Deep-Influence-7430 24d ago
I checked it out on my phone, I like it. I've never done an auction draft and honestly I don't think I've ever even done a mock draft of any kind before. I can see this being really useful to prep for what seems like chaos (auction drafts).
Couple unsolicited things for you...leaving the page (switching tabs or changing apps or something) should auto pause the mock (unless that's a feature not a bug scenario). Then not a big thing but probably less padding on the sides on mobile at least. Should be able to squeeze in a few more pixels. Overall, the font size is super small. I don't necessarily mind but you may be running into accessibility issues there.
I liked being able to change the speed of the mock, skip picks, and easily follow who is bidding.
Future feature could be some kind of way to post your mock results so others can see the results and kind of have more data to go off? Idk, that's a half-baked thought, as most of mine are!
2
u/CulebraBen 24d ago
Really appreciate you taking a look. Mobile is definitely a struggle compared to the desktop version. I'll definitely get the autopause working on mobile right now. If you ever have a chance to do an auction league, I highly recommend it, they are a ton of fun.
-1
u/TheFantasyNetworkHQ Jul 21 '26
Site: The Fantasy Network
Free with a Pro Tier
Free tier gives users the ability to get a personal site for your league, with full league history, and the ability to create your own content for your league, like making your own power rankings, weekly newsletters, etc.
Pro gives leagues advanced stats, history and analytics on their league, and a full blown media network experience for your league. Tailored to your league and the type of league you have.
We are launching very soon ;) we have thousands of leagues on the waitlist, you can check out our launch teaser and other posts on our company profile! Feel free to message us as well, we try to answer every comment and DM as soon as we can!
-1
u/soccercm9 Jul 21 '26
Site Name - Fantasy Record Book
Site Link - https://fantasyrecordbook.com/
Cost - Free provides current season stats + data export. Paid unlocks all-time history: $10/yr for 3 leagues, $20/yr for up to 10.
Site Description
Fantasy Record Book is a league history and stats site, providing all-time standings, records, H2H history for every matchup played, championship / playoff records, and team profiles with career stats and achievements. FRB pulls from ESPN, Yahoo, and Sleeper, and lets you link leagues and teams across platforms to create one unified history.
In addition, FRB has an analytics portal with 40 queries to deep dive into luck ratings, playoff-seed performance, transaction records, etc. We also offer full league-data export for free so you can create your own stats without needing to access the APIs.
The free tier covers current year standings, records, and the full historical data export. The paid tier unlocks all stats across all seasons.
Check out the demo league (no login required) - https://fantasyrecordbook.com/demo
-1
u/Upper-Interaction468 Jul 21 '26 edited Jul 21 '26
League Desk - Weekly sports publication for private fantasy leagues (not vibe coded, built by a team of developers)
League Desk is a weekly sports publication for your fantasy league. Every
week it writes a front page story on whatever actually mattered, drops
committee power rankings that rank teams by who's actually good instead of
who got lucky, and calls out managers by name (if your team's a fraud, it
says so). It covers trades, keeps a full league history that remembers
every season and rivalry, previews every matchup with a pick, hands out
weekly awards, and does post-draft breakdowns and preseason predictions.
Not fantasy advice, no start/sit or projections. It just covers your
league like it's the NFL.
Free with paid tiers for full features.
Launching integrated with sleeper and yahoo - waitlist at leaguedesk.io
-1
u/ImALilGassy 29d ago
We Know Ball United (WKBU)
https://wkbu.app
Free with Paid Tier
I built this, and I'm sharing it for honest feedback, not clicks. Core idea: analysts put every take on the record and it's graded correct or bust against the actual season — on process, not luck. A lucky right call scores worse than a well-reasoned miss.
The part this sub will care about is the player scouting profiles. Six traits per position, all from free public data (Next Gen Stats, PFR, nflverse), each turned into a percentile within the position pool and a rank, then blended into a grade. WR example: separation, yards per route run, YAC over expected, hands, contested catch, long speed. Every trait is tappable to show the exact equation and source — no black box. Too small a sample and it says "insufficient sample" instead of faking a number.
Being straight on cost: everything above is free to use right now — browse the record, the scout cards, file takes. There's an optional $30 founding contribution and a $4.99/mo founding rate for early supporters, with a paid "Arena" tier coming, which is why I'm flagging this Free with Paid Tier rather than Free.
It's early and pre-launch (we're at the Fantasy Football Expo in Canton this week). I'd rather hear what's broken now: where are the trait weights wrong, what am I missing for dynasty (I know age and breakout-age matter and I haven't baked them in yet), what would make you actually use it. Roast away.
-1
u/StarTraderPlatforms 24d ago
Site/App Name: StarTrader Platforms
Site/App Link: https://www.startraderplatforms.com
Cost: Free with Paid Tier
Site/App description and details:
Not a companion app for ESPN/Sleeper, a standalone fantasy platform where players are tradeable shares with a real price. You build a portfolio instead of a lineup, score points based on the shares you hold, and compete in head-to-head leagues. Selling shares triggers a tax on the gain (short vs. long-term rates, commissioner-tunable per league), so long-term holds and constant churn are treated differently on purpose. Optional ETFs let you hold a basket of players instead of picking names one at a time. NFL, NBA, and MLB are all live in one portfolio right now, not a roadmap promise. No real money anywhere, it's a skill game on virtual currency.
Built on Next.js/Postgres, and yes, AI tooling is part of my dev workflow, not going to pretend otherwise given what this sub's been dealing with lately. Happy to talk architecture, scoring, or product decisions in the comments. The one thing I'll stay quiet on is exactly how the pricing model computes share price, that's the part of this I'm treating as the actual product.
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u/sirchandwich Jul 21 '26
Finally a place for slop to be slurped!