Browse All Side Projects from Reddit

All Projects (4,116)

I built a free playground of 80+ interactive 3D models of how things work. Come play and please give

Out at sea, a tsunami is almost impossible to notice. At the coast, it can drown a town. The stretch of coast below shows what happens in between.

I built a web for serials where readers vote on how it should continue, and the losing options get w

Reader-driven stories — readers vote on how the story unfolds. New chapters every week.

I made a free Yu-Gi-Oh! Life Points tracker with real-time sync for 2-4 players (Battle Royale and T

LP Royale: real-time multi-device Life Points tracker for Yu-Gi-Oh! duels (2-4 players).

Chrome extension that shows webhook events as desktop notifications

Webhook alerts for Stripe, Clerk, Resend & more.

I had to fix one typo on a scanned PDF so I did a side project

Free online tool to replace text in a PDF while keeping the original font, size and color. Live preview, find and replace. No account needed, no ads, no watermarks.

I built a free iCal checker for Airbnb, Vrbo and Booking.com calendars

Paste your Airbnb, Vrbo or Booking.com iCal link and see what it exports: blocked dates, reservations, and why it is not syncing. Free, no signup.

I'm a college student who reads constantly, so I built the highest quality speed reader with notes,

Read fast, one word at a time. A free RSVP speed reader for PDFs, EPUBs and pasted text, up to 2,000 words per minute.

I got tired of split view so I spent 5 months building my own Mac browser

Tabula is a spatial browser for Mac: open every website as a live tile on one infinite canvas and keep your work side by side instead of in tabs.

I kept losing track of where my Spaces/Apps were. Hopnotch: Spaces navigation in the Menu Bar. Hotke

Every Mac Space, either side of your notch — even over fullscreen apps. Hop, peek, name and Spotlight them.

I built a retro inspired game - check this out

Play Fog Tank free in your browser — a Battle City remake where line-of-sight fog of war hides the map and the enemy tanks moving through it.

I built a free, privacy-first web app to track spending

Have you ever worried about money? You're not alone. Download YNAB, get good at money, and never worry about money again.

I was tired of Canva and expensive AI tools, so I built an in-browser viral hook and visual carousel

Turn any raw idea into 5 psychological video hooks, a 60s retention script with B-roll cues, and client-side 1080×1350 visual carousels in seconds.

We built a store screenshot editor you can refine by talking to an agent

Your AI mobile app studio: build iOS and Android apps, connect real backends and services, test previews, and create assets for publishing.

Founder who makes launch videos and YouTube edits

We edit your videos: launch films, reels and intros. Start a project by direct message on Instagram.

I made a free study timer that turns your daily practice into a hot-air balloon flight (French for n

A free French focus timer game: study your way while Coco flies his balloon, keep your streak, and tour la Francophonie.

I made a free collection of startup and brand launch videos 🚀

A curated gallery of product launch videos from X.

I’ve been building a database of songs that appear in movies, would love some feedback.

MusicMovieDB is a community-powered place to discover connections between movies, songs, artists, and soundtracks.

I spent 6 months building a platform that tells traders whether they actually have an edge.

Execution-level trading journal and performance analytics for active traders.

AI Sandboxes are here!!

RayTrace records the prompts, context and tool calls of a coding agent’s run and, in a sandbox, the processes that actually started. Fork a run, change one thing it saw, and compare.

[LoopVerdict] - Voice-based AI mock interviews scored against real hiring bars

Practice AI mock interviews scored like the real loop — Amazon & AWS Leadership Principles and Google interview practice across 6 tracks.

Softpad: a small USB shortcut pad with labels on a shared screen

I made Softpad: six mechanical keys and a shared OLED for their shortcut labels. I sell it assembled under Nuvko.