Browse All Side Projects from Reddit

All Projects (4,064)

I built a site that classifies 2.1M r/NBA comments with an LLM and replays how the sub turns on a pl

r/NBA's most hated players of 2025-26, by negative comment rate.

My ADHD inspired Quizmark, a free chrome extension that embeds short quizzes in YouTube videos

Short quizzes at natural breaks in long YouTube videos, with a way back to the moment behind every answer. Free for Chrome.

Another SaaS bill or build it myself? I may have overreacted.

Self-hostable AGPL workspace. Chat, tasks, knowledge, approvals, and receipts in one record.

Scootch - one mouse and keyboard for all your computers (Win/Mac/Linux)

One keyboard and mouse for every computer on your desk: Windows, Mac and Linux. Try it free for 3 days, then buy it once.

AI agents forget everything so I built a memory SDK to fix that - Maximem Synap

Maximem Synap: agentic context management for AI agents. 92% LongMemEval, 93.2% LoCoMo, under 15ms at P75 in-conversation retrieval, native across 23 frameworks. Free tier.

I made Abvy: a beautiful drinking and BAC tracker

Abvy tracks your drinks and estimates your blood alcohol content in real time, so you always know where you stand. On Google Play now, coming soon to iPhone.

I built a way to rewatch my motorcycle rides from the map: click a bend, the video jumps there

ReplayRide ties your helmet footage to the route. Click the map and the film jumps to that spot.

I made a live feed to scroll web projects using Reddit upvotes as a quality filter

Discover indie websites, web apps, and browser games ranked by community votes. Browse recent projects or explore them one at a time in Live view.

I made a free screen magnifier you open by circling your mouse twice: no admin, no account, no CPU w

Free, open-source screen magnifier. Draw a circle twice, or tap Shift twice, to zoom in right where you look. For Windows, any browser, and your own website.

Where do I post my side projects without a social media presence?

Vaccinations, medications, weight and meals for every pet you have — and you’ll always see what’s due next. Free.

I built a site where you explore paintings by clicking whatever detail catches your eye

Discover 308 European paintings through visual echoes. Choose a detail, follow its resemblances, and learn the story after looking. Free to explore.

My side project went from 500 to 15,000 users a day and I had no idea where they were coming from

SpacePlanner is a free online space planner for drawing floor plans and layouts in your browser. No signup, no download — start planning in seconds.

I built passport photo editor that runs in your browser.

Make, check and lay out passport and visa photos in your browser, then print them at any photo lab for the price of a 4×6 print. Free, and your photos never leave your device.

I built an app that converts any text into high-quality audio. It works with PDFs, blog posts, Subst

I’m excited to share a project I’ve been working on over the past few months! It’s a mobile app that turns any text into high-quality audio. Whether it’s a webpage, a Substack or Medium article, a PDF, or just copied text—it converts it into clear, natural-sounding speech. You can listen to it like a podcast or audiobook, even with the app running in the background. The app is privacy-friendly and doesn’t request any permissions by default. It only asks for access if you choose to sh

I built a geopolitical conflict simulator, would you actually use something like this?

Data-driven alternate-history conflict simulator.

Why do Airplanes Fly?

The real reason wings lift, the explanations that are wrong, and why experts still argue about how to say it. With live wind-tunnel simulations.

I built D-REC, a recorder with on-device transcription and a rewind wheel. Here's the desktop demo.

Live transcription, 100% local. On iPhone, Android, Mac, Windows and the web.

I lost my job and built a daily geography game site instead of just sending CVs

Free daily geography games: guess countries from their flags, fill in grids, name rankings and compare countries. A new challenge every day.

made a little museum for AI model answers

Every answer every model gave to the same questions, kept after the models are gone. 15,639 answers from 371 models to 85 questions.

First 62 bucks! My expense tracker just got its first lifetime purchase

The expense tracker that works as fast as you think.

I'm turning your website/product into promo videos for free ,

Videly is the AI launch video generator for SaaS teams. Turn screenshots and product updates into product motion design and feature announcement videos in minutes.