Browse All Side Projects from Reddit

All Projects (6,181)

Solo project, ~4 weeks in, feedback welcome.

Ask about a concept or bring a paper, and OpenLemma builds a short lesson with a live model for each idea, every quote checked against its source.

I built a Chrome extension that adds the search bar for playlists YouTube could have added years ago

Free Chrome extension that adds search to YouTube's Save to playlist menu. Type to find any playlist, even past the 200 playlists YouTube shows.

A small game to Whack Together

I wanted to see what I could build with OpenAI's dot. So we made Whack Together. It's a silly multiplayer game with oversized weapons, monsters and bosses. Up to 6 people can jump in through one link. No download. 🔨 https://williswee.com/whack-together/ Dot handled everything. I played, gave feedback, and kept asking for bigger weapons and other ridiculous requests. I was probably the bottleneck. I wanted something to play with my 👧🏻👧🏻👧🏻, wife, and friends. Now

I'm building a SaaS and trying really hard not to overcomplicate it

Send each client one secure link listing only the documents still missing. TidyClose follows up for you and shows who’s ready to close. Join the waitlist.

I’m building a style assistant for people like me who suck at dressing

Your personal AI stylist. Insprii builds fresh outfit ideas from clothes you already own, suggests pieces that complete the look, and helps you dress better every day.

Title: I’m a university student building a free Japanese-learning website — would love some feed

Learn Japanese one step at a time: hiragana and katakana, real words, a vocabulary library, and beginner lessons with active practice that follow the order of Genki I.

I made a tiny squishy buddy that lives on your desktop and reminds you to drink water (free, Windows

Mochi is a squishy little desk buddy that lives at the bottom of your Windows screen. It reminds you to drink water, stretch and rest your eyes, eats your worries and speaks English, Hindi and Hinglish.

I built a video editor because AI kept messing up parts I'd already edited

dev-tools

A little direction. A better story. Meet the local AI video editor for macOS, Windows, and Linux.

Just made this because I kept getting tired of switching between 5 different apps just to plan my da

Make room for your day with Timebird. Plan events, organize tasks, and keep time across cities in one thoughtful calendar workspace.

A spatial canvas to write, moodboard, and connect ideas [Local mode update!]

The desktop client has been one of the most requested things since day one, and I’ve just released it (Windows for now, Mac is planned). It’s brand new, so expect it to keep improving. What is Passinote? Passinote is a note taking app that lets you write notes just like traditional apps such as Notion and Obsidian, but puts all your notes onto a visual canvas instead of a linear folder structure. This lets you think spatially and remember where you've kept your notes, without worry

RedZone for your ears: NFL + college football, every game day

NFL for blind listeners: live NFL scores, local team radio links, confirmed YouTube audio when available, and red-zone game updates in Every Game Mode.

I built an offline research assistant, not another AI chatbot.

Open-source, local-first AI for Windows fieldwork and research. Supported features work offline after setup.

A tiny world model running games on a Raspberry Pi Pico 2 W, in no_std Rust

I got interested in looped transformers: one transformer block reused several times instead of a stack of different layers. Since the same weights are reused, they're very cheap on memory, so I wanted to see if I could build a looped world model tiny enough to run on a microcontroller. I used a Raspberry Pi Pico 2 W as the chip. For the worlds, I used 5 small games that run in a terminal: Breakout, Flappy Bird, Pong, Pac-Man lite and a Doom-like raycaster with a minimap. The data for t

I built a flight price tracker that emails you when fares from your city drop far below their usual

Tarmako checks 1912 routes every two hours from 68 cities in Belgium, France, the Netherlands, Germany, Austria, Spain, Italy, Portugal, Ireland, Malta and Luxembourg. When a fare drops far below its usual level, you get an email with the dates and the airports.

Pigskin Lab - ask NFL questions in plain English, get a dashboard back (every number from nflverse p

Type what you want to see and get an NFL dashboard: graphs, tables and models from every play since 1999. Ask follow-ups to change it, then share it with one link.

Building BuddyNext, a self-hosted platform for creating your own social community

BuddyNext is a free community plugin for WordPress: activity feed, spaces, members, messaging and moderation, self-hosted on a site you own.

I got tired of phone-webcam apps asking for subscriptions and USB debugging, so I made a free open-s

MyCam turns your Android phone or iPhone into a high quality webcam for Windows. Free, open source, no ads, no cloud.

Tlines - bank research, distilled into plain language, with receipts

Compare what banks and asset managers say about gold, oil, rates, FX, equities and crypto: the consensus, every published target, what changed this week…

Video clip maker/editor right in your browser. Just drop in youtube link, cut a clip and edit it.

Cut your clips and sound into one short video, right on your device.

I made a macOS-style dock for Windows 11, it's on Steam now

Bring the elegance of the macOS Dock to Windows 11. Dockable is a beautiful bottom dock with magnifying icons, a Liquid Glass bar, light/dark themes, and smooth genie-style minimize animations — mirroring your taskbar apps in a cleaner, more delightful way.

Need people to try your project? I struggled with that too, so I built Reponite.

Find real beta testers for your app, SaaS, game or AI tool. Collect structured feedback and get your first users. Free — you pay in testing, not money.