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Every time I needed something dumb done to a file (shrink a PDF for an application portal, blur a name on a screenshot, get a video under Discord's limit), the "free" site wanted an upload to god knows where, an account, or hit me with a daily quota. But browsers can do all of this locally now. FFmpeg, qpdf, the codecs behind Squoosh: they all compile to WebAssembly. So I spent the last few weeks building sunasty.com . PDF stuff, image stuff, video/audio, converters, some dev utilit...

Lately a lot of my presentations come out of Claude/ChatGPT as a single HTML file. They look great and open anywhere — but the moment you need to fix a typo or move a box before a meeting, you're stuck re-prompting the AI or digging through dev tools. So I built Greenroom : drop in an HTML deck, click any text to edit it, drag and resize elements (with snapping guides), edit chart data, reorder slides, change the deck's colors, present fullscreen, export PDF. Hit save and you get back the sam...

Got laid off a bit ago and decided to build something I'd actually wanted to exist for years! campgrounder.io is a free campground finder with 351 curated sites across the US and Canada. No account, no ads, no upsell. 🏕️ Unique design, real descriptions, honest amenity info, direct booking links to recreation.gov for federal sites and the right provincial system for each Canadian province. Recent additions that I'm proud of: tent-only filter, dark sky filter, and a full Canada sectio...

I almost didn't post this because the numbers are tiny. But it's my first euro from something I built, so here we are. I made Soonish - a countdown widget for Android. Days until any event (trips, birthdays, deadlines) on your home screen, plus progress bars for where you are in the day/week/month/year. That's it. The weird part: I built it around an *anti-*engagement philosophy. No notifications, ever. No accounts. No analytics SDKs. No subscription - a single one-time unlock. Everything st...

honestly just need to vent because the pricing for live sports data is genuinely disgusting. i spent the last month building this custom betting dashboard for a private discord group, and everything was working perfectly on my local machine. then I actually went to get production api keys for live odds. these data providers want like $2,500 a month just for a basic tier. how is any indie dev supposed to bootstrap a sports project when the monopolies gatekeep the raw data behind massive enterp...

Built this about 3 months ago after struggling to find pottery classes near me when i moved cities, most studios don't show up well in search and rely on word of mouth or Instagram. Built a simple directory, studios can submit their class listings through a form, traffic is small maybe 300 monthly visitors but the engagement is unusually high. average session time is long, people are clearly reading through multiple listings rather than bouncing. A few studios have reached out asking how the...

Building the product was actually easier than getting people to notice it. I am realizing that distribution is a completely different skill from development. For people who have launched side projects: How did you get your first 100 users? Reddit? SEO? Twitter/X? Cold outreach? Something else? Interested in hearing real experiences rather than generic startup advice.

Hey everyone. I built ReviseFlow almost 4 months ago. I tried almost everything to get users (except paid ads), but in 4 months, I got ~100 organic users, 10 users actively using the service, and only 2 paid users. Probably 2 days ago, Google started recommending me in "xxx alternatives" searches in AI answers. In these 2 days, I got ~10 registrations/d and got 2 more paid users. I hope it continues of course, but I wanted to share this to see who has had similar experiences. How...

Some of you might remember this one. I posted my app here in March when it had a few hundred downloads and the post blew up. My phone didn't stop pinging for two days. It was amazing, and it gave me the confidence to go full-time into the app. Still the best thing that's ever happened to this app. So here's the update you accidentally signed up for. The backstory My wife had 40,000 screenshots on her phone. Recipes, outfit ideas, stuff to buy, baby things. All buried in the camera roll, ...

Building Sleep Island solo. It plays slow nature scenes + auto-pauses playback when on-device motion sensors detect you've fallen asleep — protects deep sleep, saves battery, 100% offline. It's quietly grown to ~1k daily active users in China, and this green wheat field scene turned out to be one of the most-played right before bed — which honestly surprised me, since it's the simplest one I made. 👉 Get Sleep Island on the App Store Curious — for a sleep app, would you trust motion-sen...

I recently started using Reddit to explore these subs and get some feedback on a new app project. I’m learning some really great things here, and I regret not using it sooner. So I’ve been browsing all the projects people are sharing, and it’s great, super stimulating. But I’m also a bit disappointed by how everyone with a new idea or app is going straight for subscriptions. Of course, some projects are the result of really hard work and you’d want to earn money for that. I’m talking more ab...

I got tired of "my" music living on subscriptions I don't control: playlists quietly losing tracks, recommendations I didn't ask for, and ads barging in the second I stop forking money over. Every tool I found solved one slice of the problem, nothing owned the whole loop. So I built soundcli : one small cross-platform CLI that pulls your YouTube, SoundCloud, and Spotify libraries down as real audio files on your own drive, then plays them back from a clean terminal dashboard. Grab, ...

If you're looking to level up your front-end development skills by building a practical web utility, this is the guide for you. We'll code a fully functional Case Converter Tool from scratch using onl

Your first scaling problem rarely arrives with a bang. For a while, everything is fine: pages load fast, the database barely breaks a sweat, and the team ships features without thinking much about inf

Dart backend frameworks exist on a spectrum. At the minimal end sits Shelf, with raw primitives and full control. You wire everything yourself. At the maximal end sits Serverpod. It's a full framework

Hey everyone, I built a small side project called Matchday26 : https://matchday26.site It’s a simple web app for following upcoming World Cup 2026 matches. The idea is very straightforward: I wanted something cleaner and faster than checking Google or larger sports websites every time. Most services show a lot of extra content, ads, news, stats, and navigation. I just wanted to quickly answer: Who is playing next? What group are they in? When is the match? Can I filter by nat...

You can try the live demo at: ch-bas.github.io/threejs-sims-house-builder/ The open-source code is available on GitHub at: github.com/ch-bas/threejs-sims-house-builder

I think a lot of people make the same mistake before building a business/app/product. They ask: “Do people like this idea?” That question is almost useless. People are polite. Friends are supportive. Reddit can be encouraging. AI tools are often too positive. And “sounds cool” does not pay bills. The better question is: “Assume this fails 6 months from now. What killed it?” That forces you to look at the ugly stuff: Who actually pays? What do they already use instead? I...

https://leggo.now Hey everyone! Deciding where to eat with my friends can be such a pain. Google and Yelp are mostly focused on my location, and it gets even harder when everyone lives in different areas. So I built Leggo, a smart and fun way for families and friends to figure out where to eat that actually factors in everyone's location, cuisines, and dietary preferences. The host creates a group, shares a 6-letter code or link, and everyone joins on their phone and puts in their locatio...

When I was looking for a tool to track my calories and macros, there are lots of options, and many of them are feature-packed. Barcode scanner, huge database, AI picture scan, water tracking, alcohol tracking, micronutrients, AI suggestions, recipe builder, weight tracking. For my own use case (gaining weight and muscle), I didn't want any of that! Why can't I just type in what I ate and be done? I really only care about calories and macros. I figured there must be others that feel the sam...

Hi everyone, I’m building my first side project and just submitted it to Apple for review, so I have a bit more time to talk to people now. I’m still early in the process and would love to chat with anyone who is building, launching, or thinking about products. Not here to hard pitch anything. I’m mostly looking to exchange feedback, learn from other builders, and better understand how people think about side projects, product ideas, and early user problems. Happy to chat in the comments...

I'm just a solo-developer based in Chennai. My first app - smokepic - is a AI-photo-studio app. https://www.smokepic.com/ I built this on my own over the past six months, out of a genuine passion for the craft and a belief that good photography shouldn't be a luxury. SmokePic is just getting started, and I'm building it in the open, one honest improvement at a time. I hope this app gets me one step closer to my dream. Of note, this app is built on #vercel + #supabase. It uses #Google(#...

I don’t have any experience creating websites, so I’m not sure which AI would be best for the job. I’m hoping you all can help me. I want to build a website with a world map where, when you hover over a country, a poster appears listing every car manufacturer from that country, along with their respective models. Could you advise me on what I need to do and how to prompt an AI to help? I’d also like the AI to create the infographic-style posters showing the cars and models submitted by...

upstonk.com Just pure, pharmaceutical-grade dopamine. I built Upstonk because real stocks keep doing annoying things like going down. On Upstonk, every trade eventually goes green. Buy random garbage? Profit. Buy the top? Profit. Panic sell? Believe it or not, profit. The entire thing runs in your browser. No deposits. No withdrawals. No financial advice. No SEC complaints (hopefully).

I am a student and I kept wasting hours rewatching long lectures before exams, so I built this. You paste a YouTube link or website, or upload a PDF or image, and it gives you a clean summary, study notes, flashcards, a quiz, a glossary, and you can even chat with the content to ask follow up questions. It is free to try and you do not need to sign up for the first few. Try it with your most boring lecture and see what it pulls out, it honestly surprised me the first time. prismiqai.verce...

Built a Chrome extension because I kept pausing videos to Google words I didn't understand. When a speaker used an unfamiliar word, I'd lose focus, open a new tab, search the meaning, then try to get back into the video. It completely broke the flow. So I built Podinary . It listens to the audio from YouTube videos and podcasts, detects potentially difficult words in real time, and shows their meanings without making you leave the video. This is the first public version and I'm looking ...

https://reddit.com/link/1u36epy/video/d6xrq8qlzo6h1/player I got tired of constantly opening a new tab just to check exchange rates whenever I came across prices in foreign currencies. So I built a browser extension that converts prices directly on any webpage by simply selecting them. It currently supports 47 major currencies and also includes a built-in currency converter. I originally made it for myself on Firefox, but I've now published it on Chrome as well. I'd love to hear any feedb...

Every time I see a side project blow up on Product Hunt, I notice the same thing — there's a crew behind it. I don't have that crew yet, so I'm building one. I've got friends, but the ones building things aren't on the right platforms or their accounts are too fresh to help (HN needs karma before you can even vote). So launches feel lonely. I'm putting together a small group of like-minded people to help each other across the startup journey — feedback, testing, launch-day support, and gener...

I've been a web dev for years but only recently got into shipping my own stuff (published my first mobile app a few weeks back). A while ago I saw a couple playing this physical board game, basically snakes and ladders, but every tile has a question or a dare. Roll, land, answer, pass the phone... err, the dice. Simple but they were genuinely into it for an hour. I looked for an online version afterwards and found nothing decent. So I built one: https://night-web-mu.vercel.app/ How it ...