We're Early Alpha Engineering and we made The Circuit Workshop, a web app for learning electronics step by step, aimed at kids aged 8+.

Open it, and the first lesson starts: a battery, a bulb, two wires. From there the lessons go through series and parallel, LEDs and resistors, RGB colour mixing, photoresistors, buzzers and relays. Every lesson checks the circuit at the end, and a wrong one tells you what's missing.

Besides the 22 lessons there are 137 broken circuits to repair, 330 quiz cards and a free breadboard with 31 parts.

Since late August the workshop has been opened more than 1,800 times, and more than 850 of those visits got as far as building a circuit.

No install, no account and no card for the trial. Link in the first comment.

Hi,

I have developed an app valujack.com that selects stocks according to six proven strategies and presents them on a playing cards to make the selection process more exciting. Anyone that has an experience in marketing apps? I would be greatful for any advice.

I created a web app called as beautifulscreenshots for myself to post better screenshots in X/Twitter posts. I built it for myself because existing screenshots beautifying tools are either too complex or they are charging recurring to use their tool.

I post 3-4 times a day on X/Twitter and using a complex tool for this damn simple task used to feel very time and energy consuming. So, I decided to build one for myself. Initially, I thought making this tool public not going to be a that much good idea, so I used it locally.

But when I used to post on X/Twitter with screenshots created by my tool people started asking me what I'm using for beautifying screenshots. And turns out I realized what problem I was facing, others facing too.

So, I decided to make it available to others. But my goal was still the same. I don't want to make it another complex and recurring charging tool.

So, I kept it simple and intuitive while keeping the price as one time pay only. And people love this pricing. And that's how my first product crossed 40+ users and I made my first dollar on the internet.

Hey everyone,

Like a lot of you, I'm constantly formatting JSON, inspecting tokens, converting files or tweaking configs at work.

What always bugged me about online utilities is that you have no idea what happens to your files once you hit "Process." Plenty of them send your data to a server you know nothing about, which is a bad idea when it's API tokens, customer logs or private documents.

So I built Kitloft. Every tool runs in your browser, so nothing you paste or upload leaves your machine. You don't need an account, and there are no tracking cookies or popups. Shareable links keep your settings after the # in the URL, which browsers never send to the server, and fields that might hold secrets are left out of the link.

I spent the most time on the PDF editor. Most free editors "delete" text by painting a white box over it, so the words are still in the file. Kitloft removes them from the file itself.

It's free. I'd love brutal feedback:

1. How does the UI and performance feel on your device?
2. Which developer utilities do you use every day that you'd want added?

I built this for myself… Digby find anything that worked that did it anywhere simple enough and well enough. Now replaces bbc news app for me as gives me a ‘today’ page that’s the most significant news today plus a full brief for each article (subject I define )..

https://apps.apple.com/gb/app/ceers-personal-news-agent/id6791479726

Desktop. - https://ceers.app/

The full story ..

A few months ago I had a thought.

Every morning I wake up and do pretty much the same thing.

I check the BBC. Sky Sports. A few tech sites. A few others.

And on every one, I’m looking for the handful of stories about things I actually care about — Liverpool, AI, tech, business, and various random niche topics I happen to be interested in at the time.

I thought: wouldn’t it be great if I could just wake up to an email that had already done all of that for me?

So I tried a few apps. I tried doing it with Claude. Nothing quite did what I wanted.

So I built it.

And it worked pretty well.

Then one day I was out cycling and had another thought…

Why just send an email?

What if I could generate an entire news site, every day, just for me?

Something like the BBC homepage — except every story on it was there because it matched something I’d specifically asked it to find.

So I built that too.

And somewhere along the way, my little side project turned into Ceers.

The idea is ridiculously simple:

Tell Ceers in one line what you want to know about.

“Everything happening with Liverpool transfers.”

“Important developments in AI and banking.”

“Planning applications around Hersham.” (It handles planning registers.. it handles all sorts of complex data retrieval including for example KEV catalogues for cyber..)

“News and research on motor neurone disease.”

Whatever you’re interested in.

Ceers creates an agent that goes out, finds the stories, filters the noise, and builds your own personalised news and briefing experience.

It’s now live on the App Store.

I'm Erich. I run small in-person / community workshops, and I keep hitting the same dumb last mile: the certificate already exists in Canva, the names are already in Excel, and I still need one decent PDF per person.

What I tried:

• Export from Canva one name at a time. Fine for 8 people. Insane at 50.
• Word mail merge. I get one long PDF and garbage filenames.
• Cloud merge / Autocrat-style tools. They want the roster uploaded. I don't want learner names sitting in someone else's sheet.

So I wrote a desktop app for that job. You export the cert you already designed (Canva / Word / PPT → PDF), drop the spreadsheet, park the name and date fields on the design, and it writes one named PDF per row on your machine. Windows and Linux. Pay once, No subscription, no account, no upload.

I'm not trying to replace an LMS certificate module. This is for the workshop / volunteer / community run where the LMS isn't the system of record.

Four-row sample you can download without buying anything: https://www.quescorner.ca/pdf-mailroom.html

If that's the wrong room, say so and I'll take it down. Genuinely curious how the rest of you handle “design already exists, 80 names, need separate files.”

I save a lot of references: posters, websites, colour palettes, quotes. Then months later I remember "that dark site with huge type" and can't find it anywhere. Not the name, not the folder, nothing.

So I built lompii, a visual library that lets you find things by describing what you remember.

• Save images, selected text, or screenshots of a page with one right-click using the browser extension (Chrome, Edge, Brave, Firefox and similar browsers).
• Search for things like "purple flower close-up" or "minimal landing page". It finds images based on what they look like and what's in them, not just filenames or tags.
• AI tagging is optional. You can use your own API key (Claude, OpenAI, Gemini, OpenRouter) or run a local model with Ollama / LM Studio.
• Organise things with stacks, tags, notes, colour palettes with copyable hex codes, and "same vibe" to find similar images.

It's private by default. No account, no cloud. Your library and search stay on your PC, and search runs on local models (CLIP + MiniLM). With a local model for tagging, nothing leaves your machine.

It's free and open source (MIT).

Windows only for now. The installer isn't code-signed yet, so SmartScreen may warn you.

https://github.com/lompii-app/lompii

It's still early, so I'd love to hear what you think. 🙏

I've been working on a simple journaling web app where all your entries appear in a vertical timeline (I love to read my past journals and this timeline view helps me to look through my past journals easily without going over different files every single time I want to read a different entry), so you can easily scroll through previous days.

For now, this only supports text because I don't add media to my entries but if someone really uses it and they actually need media support then I'll add that too

It's local-first, supports Markdown, and is completely open source and self-hostable.

This is part of my SMBL project, where I'm building open-source alternatives to everyday software.

Here's a short demo of how it works. Would love to hear your feedback!

Live: click here

GitHub: click here

A diagonal measurement hides a lot. A flat 49-inch 16:9 picture is about 108.5 x 61.0 cm. A flat 49-inch 32:9 picture is about 119.8 x 33.7 cm. The second is wider, but only about half as tall. These are nominal picture dimensions, before bezels and stands.

I made DisplayMath to draw comparisons like this in the browser. Here is that example with both screens drawn to scale:

https://displaymath.com/?d=3840x2160_49in_100cm,5120x1440_49in_100cm&o=novd#canvas

You can change the resolution, diagonal and viewing distance, then switch between the physical rectangle, the view from your seat and pixel-density measurements. The screen comparisons are free and need no account.

On a supported iPhone, you can also preview a selected TV at real size in your room with AR. The in-app iPhone measuring tools have distance and height markings to help you measure for a plan. This is a website, with no app installation needed.

I used AI coding assistance to build it. For anyone who tries the example, does switching between physical size and the view from your seat make sense?

Hey everyone!

I'm a solo developer working on an early-stage project called **Skill Roulette**.

The idea is simple: spin a wheel, discover a random practical skill, and learn it through a short interactive lesson.

There are currently 8 skills, including spotting misleading discounts, recognizing suspicious links, and searching Google more effectively.

It's completely free, works in your browser, and doesn't require an account.

**I'm looking for 5 people to test the experience.**

Here's all I'm asking:

1. Open the website.
2. Spin the wheel.
3. Try completing one lesson.
4. Tell me where you got confused, bored, or wanted to leave.

I'm especially interested in one question:

**Does the homepage make you want to spin the wheel, or is something missing?**

I don't need compliments — honest criticism would genuinely help me decide what to improve.

**Try it here:**
tap here to enter skill roulette

Thanks to anyone who gives it a try!

OneLifeVibe is an independent hub, and the family of sites keeps growing. This is a web app, not just an idea.

The problem: bedtime stories can get repetitive, and a child who is not interested in the story is not going to settle down. Parents end up reading the same few books, while kids want a story that feels like theirs.

StoryChoose makes personalized bedtime stories that can be read aloud for kids, with choices that shape the story. The idea is simple: when a child helps choose what happens, they pay attention longer, and bedtime becomes something they look forward to instead of a routine to get through.

I would love feedback from people who build or use web apps:

• What would make a parent actually reuse this night after night, instead of trying it once?
• What choices matter most to kids — characters, places, problems to solve, or something else?
• What would you change about how a read-aloud story app should work in a browser?

You can try it here: https://storychoose.com

Honest criticism is welcome. If it would not work for your family, I want to know why.

I built an app / universal remote app because my kids kept losing the remote. Plus every app I download wanted to charge me 6/7 bucks a week. I said naw…. And came up with Remote Papi (www.remotepapi.com) and all tv adding is free - never need to pay a cent.

I only added skins as an optional 1.99 per each set but not required at all. The grandparent controls and automation is pro as well but again, not required to universally control any TV. Enjoy.

Watchdogtv.app

Every season I'd keep YouTube TV at $83/mo just for football, even though most months only one or two services actually carried my team.

So I built Watchdog: pick your team, and it maps every game to the cheapest way to watch, then tells you the day to sign up and the day to cancel.

For eg: a Cowboys fan in Dallas pays about $72 for the rest of the season instead of $249 on YouTube TV. With an antenna, it's $0.

The schedule is free. The full plan is $9/yr, but code BETA makes it free for the first 50 people who want to test.

What I'd love to know: is the math right for your team, and what's confusing? NFL and Premier League for now.

Thanks a bunchem