Browse All Side Projects from Reddit

All Projects (4,116)

Frustrated by Cloudinary's 99/mo pricing cliffs, I spent 3 months building a client-side media optim

Strip EXIF metadata, GPS coordinates, and hidden camera data from photos entirely in your browser using WebAssembly. Convert JPEG to WebP, compress images, resize — then optionally host on a global CDN. No file ever touches a server.

I made a website that lets you play with antennas and visualize the electromagnetic field

Explore dipoles, loops, phased arrays and electromagnetic fields in a free interactive antenna simulator.

I spent the last few months building an iOS/Android app that turns your weekend or date night into a

Clu Trips turns your city into a live mystery adventure. AI builds real routes of hidden local gems—including Mystery Dates with dietary filters and a dish to try—and you unlock each stop only when you arrive.

I built a QuizUp-style live trivia game as a solo dev. Here's what it took

Ten questions, ten seconds each, real opponents. Cricket, Bollywood, IPL, anime, GK and 110+ topics. Play free in your browser.

Mocksy GPS Location Mock Android application

This is the home page for Mockys GPS Location Mocking Android application

I built an offline drag-and-drop file converter for Linux (hold a key while dragging, a wheel of for

A drag-and-drop file converter for Linux. Try the interactive demo in your browser.

Clients of the websites I developed would share bugs with me and make changes in a disorganized way.

FixNoty: visual website feedback for freelancers and agencies. Clients click the page and leave a note; you get organized tasks with automatic context.

I built a free library of 900+ motion design examples because I never know exactly what I want

Describe the motion you want in plain words and get a prompt that names the right techniques, with 923 motion design techniques to browse, each with a live example.

I made a free website health check, no signup, about 20 seconds

Free website check: HTTPS, certificate and domain expiry, security headers and email records, with a plain-English full report.

I built a free Gantt chart maker

Planifica proyectos por semanas con Gantt Maker. Organiza tareas y equipos desde una interfaz visual y trabaja con agentes mediante MCP.

I built PMMockr to practise PM interviews with follow-up questions and AI feedback

Practice product manager mock interviews with AI follow-ups, timed PM cases, and feedback. Learn from model answers and prepare for your next interview.

Made a free checker that tells you if your web app is shipping secret keys in its JavaScript

Free passive check: paste your own app's URL and see if your Lovable, Bolt or Replit app ships secret keys, public source maps, or is missing security headers.

I built a Mac time tracker that's 100% local — no account, no cloud

Griotte records what you work on, sorts your hours by client and works out what to bill. A native Mac app, 100 % local: no account, no server, nothing leaves your Mac.

Retake - Video recording tools for coding agents

A real app. A reusable walkthrough. A video you can review.

I was a CTO for 10 years, so I turned what I'd do on any app into agents

Where prototypes become real products

I built WorkoutPort to choose which Apple Health workouts reach Strava — sync is free

Choose which Apple Health workouts go to Strava, then leave auto-sync on.

Using AI and Technology for human flourishing.

Kind Fu is a guided daily kindness practice: voice, music and one real act to help you get out of your head and build a more connected life.

I built a metronome that changes the tempo for you, so musicians can do speed practice without stopp

A free online metronome that raises or lowers your tempo automatically after the number of bars you choose, and lets you build custom practice programs. No account needed.

That's not what they say

Famous sayings with one word off. Spot it, fix it, share it.

I built a mastering tool for Suno songs that tells you honestly whether it hit Spotify loudness

Free AI mastering online for Suno and home recordings: one full WAV or MP3 master every day, no account. Streaming loudness and a before/after report.

Solo dev in Kyiv: I built a landing page copy auditor and ran it on 24 big SaaS homepages

Paste your URL and get prioritized fixes traced to Ogilvy, Cialdini, Schwartz, and CXL Institute research. Every recommendation cites its source.