How to Build a Dark Mode Toggle Without JavaScript
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How to Build a Dark Mode Toggle Without JavaScript

Over the years, I've worked on many Static Site Generated (SSG) websites that work without JavaScript. And during that time, I've created a few solutions. One of them is a dark mode toggle that doesn'
How to Export a Claude Conversation as a PDF
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How to Export a Claude Conversation as a PDF

Whether you're documenting research, sharing AI-generated content with colleagues, creating reports, or keeping an offline backup, saving Claude conversations as PDFs is one of the easiest ways to pre
How to Take Control of Your Online Privacy
🌍 FreeCodeCamp

How to Take Control of Your Online Privacy

Every click, search, purchase, and social media post contributes to your digital footprint. While the internet has made communication and access to information easier than ever, it has also created ne
Reddit

How to create an app to wish someone on their birthday? I want to go a little overboard 😭

So, our Computer Science teacher's birthday is coming up, and we really want to do something memorable... The thing is, he's not a huge fan of big physical celebrations or cake-cutting, so we thought it'd be much more meaningful to make something digital instead....CS teacher after all. I've been thinking about creating something like a small desktop app (or maybe one of those fun pop-up programs) that launches on his computer and wishes him a happy birthday. But I don't want it to be just a ba...
Reddit

I built an AI tool that auto-picks background music for videos, but I still can't explain it in one sentence. How would you describe it?

I've been building this for a while and I have an embarrassing problem: I can't describe my own product. Every time someone asks "so what does it do?" I ramble for two minutes and watch their eyes glaze over. I'd love a fresh read from people who didn't build it. Here's the plain version of what it actually does: You drop in a video. It analyzes the mood, the pacing, and where your cuts land, then picks royalty-free background music that fits, and places it to match the edit instea...
Konark Run: A free browser-based endless runner
Reddit

Konark Run: A free browser-based endless runner

I've been working on Konark Run , a small browser game inspired by the Konark Sun Temple. It's an ad-free endless runner that runs entirely in the browser. I'd love for you to give it a try and share your feedback. Konark Run
Built an app that sorts all your notifications in one place, drafts and automates the admin nobody has time for
Reddit

Built an app that sorts all your notifications in one place, drafts and automates the admin nobody has time for

Hi just opened our beta and it's free, go wild :) Two years of freelancing will do something to a person. Specifically, it will make you lose your mind over admin. I got tired of doing the same tedious nonsense on loop and started automating all of it. A lot of people started asking me for the setup, so instead of writing another tutorial, I just built the thing. what yaven is today: - an ai notification center that filters across telegram, email, slack, imessage and resurfaces the follow-...
Reddit

I built a no-code AI agent that runs a small business's WhatsApp — books appointments, sends reminders, kills no-shows

Project I've been heads-down on: kewe, an AI agent that plugs into a business's WhatsApp and quietly does the front-desk grind — answers clients, books appointments into the calendar, sends reminders, and follows up on no-shows. 24/7, no code to set up. I built it for businesses that basically run their whole customer flow through WhatsApp: clinics, dental, med spas, salons, vets, plus hotels and tour operators. They lose real money every week to missed messages and empty slots, but most &quot...
Reddit

After 3 failed startups, I finally understand what customer discovery actually means

Three startups. Three times I built something people said they wanted. Three times they didn't actually buy it. The pattern was obvious. I was asking "would you use this?" and collecting yeses like they meant something. They didn't. The problem is structural. When you ask someone if they'd use a product, they're predicting their future behavior. Humans are awful at this. We're biased toward yes because we don't want to be negative, and the cost of saying yes is zero, they're not ac...
Reddit

My friend built an anonymous bribe-reporting platform for India – would love your thoughts

A friend of mine has been building something over the past few months. It started with one question: Why is there no public data on everyday corruption in India? We've all heard stories someone being asked to pay at the RTO, a police station, or while accessing another public service. But stories stay stories. They don't help us understand patterns. He built bribes.fyi a privacy-first platform where anyone can anonymously report bribery incidents, explore trends by state and department, ...
Reddit

I built a free, offline, no-account workout tracker (PWA) — would love feedback

I mostly built this for myself and a couple friends and it kind of grew into a full app, so I figured I'd share. It's a workout tracker that runs 100% in the browser — no account, no backend, works offline, installs to your home screen. You can build a routine, or tap the muscles you want on a body map and it generates one (with home-equipment options). Live set logging, rest timer, PRs, streaks, 800+ exercises. It's free and uses only localstorage. Link: https://forkworkout.vercel.app/ ...
I replicated a 52M startup (Speechify) as just one feature — it does real-time AI voice with word-by-word highlighting
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I replicated a 52M startup (Speechify) as just one feature — it does real-time AI voice with word-by-word highlighting

Hey everyone 👋 I'm a solo dev building ChromePilot — a Chrome extension that turns your browser into an AI-powered assistant with voice, automation, and integrations. One of the features I recently shipped is basically Speechify — but built into the extension as just one feature among many. What it does: Click play on any paragraph on any webpage → AI reads it out loud in a natural voice Real-time streaming — audio starts playing within ~1 second, no waiting for full generati...
I wasn't learning from Duolingo so I built my own Japanese learning app
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I wasn't learning from Duolingo so I built my own Japanese learning app

I've been trying to learn Japanese for ~2 years or so, primarily on Duolingo (streak of 500+ days!). I realized that I honestly wasn't learning anything. Every time I tried to write something from scratch instead of just tapping tiles, I couldn't. So I built Shinme! It's a from-zero course which focuses on developing actual Japanese writing skills. Each lesson comes with its own vocab and grammar content. In order to completing each lesson, users need to complete a set number of translation e...
I've always felt that blockchain explorers are fantastic for developers, but not for experiencing what's actually happening on-chain.
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I've always felt that blockchain explorers are fantastic for developers, but not for experiencing what's actually happening on-chain.

So I spent some time building Heartbeat . click to open live link Instead of tables full of transactions, I wanted something that feels alive. Every live Solana transaction becomes part of a 3D scene: Votes appear as ambient particles. Transfers and swaps stream through space. Whale transfers arrive as massive golden comets that spiral into the core. Every ~400ms, when a real slot closes, the accumulated energy collapses inward, a shockwave ripples across the scene, and a new b...
Reddit

I built an app for waking up a friend without hijacking their phone

I built Send Alarm, an iPhone app for one very specific problem: sometimes a message or call is not enough to wake someone up. The app lets you send an alarm to another person, but it only rings if they accept it. They can accept once, always accept from you, decline, or block. The actual alarm is scheduled on their iPhone with AlarmKit, so it rings through Silent and Focus. Use cases I had in mind: - waking a heavy sleeper - making sure a friend catches an early flight - study buddies...
Reddit

I built an anime recommendation site that starts with your mood instead of genres

Hi everyone! I've been working on a small side project over the last few months and I'd love some honest feedback. The idea came from a simple frustration. Whenever I wanted to watch anime, I ended up opening MyAnimeList, AniList or Reddit, scrolling through hundreds of recommendations and still not knowing what to watch. Most recommendation sites start with genres, ratings or popularity. I wanted to try something different. Instead, the site asks questions like: • What's your mood...
Reddit

I spend more time babysitting my coding agents than actually writing code

Is anyone else losing their mind over the VERIFICATION TAX? I rely pretty heavily on AI agents for my stack right now, but I’ve hit a wall. The agent will confidently tell me DONE, eat my API credits, and then I find out the deploy is completely broken or it hallucinates the completion entirely. I realized I was spending 40% of my time just reviewing diffs, running manual checks, and fixing silent errors. Turning autonomous mode off completely just defeats the purpose. I got so frustrated ...
I built a free fake stripe chart generator and called it distrustMRR
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I built a free fake stripe chart generator and called it distrustMRR

For those of you still struggling to make your first dollar online... Maybe it's time to just start faking it. So I built a fake Stripe MRR chart generator. (obviously for entertainment purposes only) its free: https://distrustmrr.com
Reached 750+ stars and 170+ tools! All the tools are open-source, no-signup, no-download, and work instantly in your browser!
Reddit

Reached 750+ stars and 170+ tools! All the tools are open-source, no-signup, no-download, and work instantly in your browser!

Started with only 30 tools that I found by search and scouring forums, then the community stepped in and submitted an additional 140 tools! I used almost all the feedback that was given by the community to improve the site. I was honored to see that someone added the site to FMHY! Thank you whoever did that! I hope this encourages people to try open-source tools, and encourages devs to ditch signups/downloads when unnecessary. Again, thank you to the community members and contributors wh...
After 1,500 Years, I Decided Chess Needed an Update
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After 1,500 Years, I Decided Chess Needed an Update

Hey guys! I’m an indie developer, and I’ve been working on Chess: The Update for quite a while. After 1,500 years, chess is finally getting an update !!! Build your deck, choose new pieces, master their abilities, and outplay your opponent. I’d really appreciate it if you could take some time to test the game and share your honest feedback. 🎮 Play: [GAME LINK] 💬 Discord: [DISCORD LINK] ▶️ Watch on YouTube: https://youtu.be/uv-ZE2fg8Vg What piece would you add to chess? ...
I made a tiny Mac pet that lives in your Dock and reminds you to take breaks
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I made a tiny Mac pet that lives in your Dock and reminds you to take breaks

Hey everyone, I’ve been building a small macOS app called wisp. It’s a tiny desktop companion that lives in your Dock. You can feed it, tickle it, let it walk around your screen, or make it follow your cursor. The newer version also adds a few “owner care” features: - water and posture reminders - calm screen break prompts - dropped files can become snacks - custom pet names The goal is simple: make your Mac feel a little more alive without turning it into a distraction. I post...
Reddit

I built a disposable camera that lives inside a QR code. Guests shoot from the browser, the gallery stays sealed until the morning after

The idea came from every wedding and birthday I've been to: everyone takes photos, and you never see 90% of them. Someone makes a group chat, four people post, the rest forget, and the good shots die on strangers' phones. So I built Flick. The host prints one QR code. Guests scan it, type a first name, and a camera opens in the browser. No app, no account, nothing to install, which matters a lot in India where half the guest list is aunties and uncles who will not download anything. Everyone g...
Reddit

A Browser that passes all anti-bot and CAPTCHA (open-source)

Websites weren’t built for AI agents, and most still rely on old anti-bot systems. I built invisible_playwright: a stealth Firefox that passes modern fingerprinting and anti-bot checks at the engine level. GitHub: https://github.com/feder-cr/invisible_playwright AI agents are becoming real web users. The web needs to catch up.
Reddit

an language app to learn words that matters to you

I've been helping my children to learn english (I am french), and my best method was simple : make them create a vocabolary book of important words then I would create sentences with theses words that they need to translate. that worked quite well, so I wanted to create an app equivalent, where they could add their words (lesson, words on songs, etc.) and practice them. And AI are good in langage so it could do what I do : create sentences with a list of words. The idea came also as I tried t...
Reddit

Finally launched my SaaS after months of building. Now comes the hard part.

Hi everyone, I wanted to share my progress so far. After months of working on my side project, my SaaS is finally completed and ready for its first users. It’s called PingLoops , and it helps freelancers, agencies, and service businesses automatically follow up with every client after a project, making it easier to win repeat business and collect testimonials without adding more work to your day. Now I’m at the stage that every founder eventually reaches: finding the first customers. I of...
I built a macOS screen recorder that saves screen, mic, webcam, and system audio as separate tracks
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I built a macOS screen recorder that saves screen, mic, webcam, and system audio as separate tracks

I built a small macOS app to solve a problem I kept running into while creating YouTube videos. Most screen recorders export everything into a single file, which makes editing much harder than it needs to be. So I built RecLayer . It records and saves each source as a separate track: Screen Webcam Microphone System Audio One feature I’m particularly happy with is system audio capture . Unlike many screen recorders that simply record whatever comes out of your speakers, ...
Reddit

I made a minimal, anagram puzzle game. No signup needed to test it!

Hey everyone! I recently got into playing word connect games and I love this game very much, so I decided to build one for myself. You can try a few levels without signing up (+ no ads) to see if you like it: https://wordconnectleague.vercel.app/ Currently hosting on free tier resources (plus I'm a student so I'm broke too) so it costs me nothing, its completely free to play.
Reddit

I followed Reddit's crosspost advice and got my first subscriber.

I work in strategy in the space industry. I spend a lot of time looking at news sites, I decided last month to build something that would save me time and also let me learn what you can actually build yourself. I've been building a news aggregation site for the last month, mainly as a hobby project and something useful for work. Like many people here, I've been posting, not aggressive marketing, mainly build stories and articles I've written, with mixed success, mainly just getting down vote...
Reddit

A directory for free, no-login, privacy-first web tools

I’m building NoUploadTools as a simple directory of web tools that respect users’ privacy. The focus is on tools that are: - Open source - Zero login - Work offline / client-side where possible - Free forever - No ads - No file uploads to a server Site I think there’s space for more small, useful web tools that don’t force users into accounts, uploads, tracking, subscriptions or ad-heavy pages. If you’ve built a tool that follows these principles, you can submit it here . Wou...