Browse All Side Projects from Reddit

All Projects (6,181)

We kept losing warranties, bills and repair receipts, so we built something to keep track of them

We’re developers, and this started as a personal frustration with keeping our households organized. Whenever we needed an appliance warranty, an old repair invoice or an insurance policy, we knew we had it somewhere. Finding it was another story. Even when we found it, nothing connected the warranty to the repair to the renewal coming up next year. So we started building Lucidi. You forward an email or upload a document, and Lucidi works out what it is and connects it to the right thing in you

Side project: F1 title math, with the exact finishing positions rivals need

Live 2026 Formula 1 standings and, for every driver, the results they need to win the title. Explained in plain English.

I turned my life-story app into something you can actually put on a bookshelf

Huminz helps you write and share life stories, personal memoirs, and biographies — complete with timelines, photos, maps, and historical context. Start for free in minutes.

I built a quiet, free web reader for your own books — EPUB, PDF, comics. No account needed, your f

Tarayıcıda çalışan, dikkat dağıtmayan okuma uygulaması — kitapların sende kalır. · A distraction-free reader in your browser — your books stay yours. EPUB · PDF · CBZ · 8 dil/languages.

i’m making a simple rts game for ai agents to play

A real-time strategy game whose players are AI agents. Watch their battles.

I built Homescreens, a place to share and discover iPhone setups

Browse real iPhone setups. Share your own.

How to Pass App Store Review in 2026 (and Avoid Rejection)

Learn how to pass App Store review in 2026: avoid guideline 4.2 and 4.3 rejections, shrink what Apple audits, fix common rejection reasons, and ship faster.

My turntable can't sit next to my laptop, so I put it inside it

Vitrola turns your Mac wallpaper into a 1979 Technics SL-Q3 by a window in São Paulo. Hit play in Spotify or Apple Music and the arm drops onto the record. The light follows your clock.

I've been building an SEO platform for almost a year. Would love some honest feedback.

RankFlow researches keywords and competitors, plans a big guide per topic with smaller articles around it, writes each one from the pages that rank and your own business details, and publishes it to WordPress or your own stack on the dates you choose.

Liber Lunae – a private moon/cycle/plant journal inspired by the Voynich manuscript

A private moon phase tracker and period cycle tracker. Record moon water, cycle days, and plant growth beside the Voynich herbal. Notes stay on the device, offline, free, and with no ads.

Does anyone else find it tedious to manually pinch-and-zoom emoji stickers over faces before posting

The zero-click app to remove hidden data and blur faces before sharing.

Solo-built a collect-the-world app for travellers beyond country counting. Currently at 9,000+ place

A curated guide to the world's most remarkable places. Collect the ones you have been to, watch your map fill in, and complete them. How much of the world have you collected?

Logic Puzzles - a PWA site

Today's edition of logic puzzles — Sudoku, Bridges, Nonogram, Mines and more, in easy, medium and hard. Free, no sign-up, works offline.

Inspired by a video a few weeks ago, I built Selene: a web engine that turns the Moon's surface into

Lunar contour maps, layered 3D stacks and printable terrain models from LRO elevation data.

Made an Nba standings predictor for groupchats, now 50 people are using it!

See how they ranked all 30 teams for 2026-27, then make your own picks.

I made a simple tool to track my learning progress

Transform any course, video playlist, syllabus, or outline into an interactive progress tracker.

I built an AI judge to settle completely pointless arguments.

You’ve exhausted the group chat. Let an overconfident AI judge find the flaw in your argument.

Screen Studio is Mac-only, so I built a Windows screen recorder that zooms in on your clicks by itse

Free screen recorder for Windows 10 and 11. Record your screen with sound and get automatic zooms, a smooth cursor and privacy blur, with no time limit.

[Cute Creepy Corners] - a 50 page Halloween coloring book, with a QC script that rejects pages that

Printable PDF, $1. Free 3-page sample, no sign-up.

I kept forgetting what a podcast or audiobook made me think and feel, and had nowhere to jot it down

A quieter, smarter way to listen to podcasts. In private preview — drop your email for an invite.

Nothing Personal - offline folder redaction with consistent replacement names

Redact a whole folder of documents, offline on Mac and Windows. A colleague or an AI can still read it.