Browse All Side Projects from Reddit

All Projects (4,064)

After 15 years, I'm moving everyone's journal entries off my servers and onto their phones

A journal for people who have a hard time keeping a journal. One sentence a day. Available on iPhone.

My MacBook notch did nothing for 3 years, so I made it useful..

CoIsland watches your work tools from your Mac's notch, shows what needs you, and hands the work to AI agents like Claude Code. You stay in control.

I built a searchable collection of emojis, kaomoji & text symbols — would love some feedback

Search, discover and copy emojis, symbols, kaomoji and expressive combinations.

I’m rebuilding the free stuff site I started in college 24 years ago

Set your birthday, favorite the free birthday offers you want, and track your personal claim windows and redemptions.

Pyviel: learn real Python with every line explained, errors in plain words (beta)

53 lessons from print to async, every line explained, errors in plain words. Free and offline, in English, Italian and French.

I built a site that turns a recording into sheet music

Upload or record any sound, or play a YouTube video, and Amadeo writes its sheet music: notes, rhythm, key and chords. Edit it, hear it on 35 instruments and share it with a link.

I built a free focus room for interview prep and studying, with original lo-fi music built in

Lock in with built-in lo-fi and piano, a Pomodoro timer, interview prep, flashcards and homework planning.

I recently got into woodworking and hated using pro CAD for simple builds, so I built BenchBuild (5

Design woodworking projects in 3D with real lumber dimensions. Generate optimized cut lists and material cost estimates with BenchBuild's free online woodworking planner.

I built a tool that clicks through your site like a first-time visitor

Name a task. See whether a first-time visitor can finish it.

I built a web app because I wanted to see my mom's first reactions to videos I sent.

Send a birthday video, a jumpscare, a surprise or big news, and get their first reaction back. No app needed.

My friend built a website called Songle and I want to surprise him with some users 🚀

A daily guess-the-song game. Daily song, unlimited music quiz, artist and K-pop quizzes, genre and decade quizzes, and duels with friends. How fast can you name it?

I'm a heavy equipment operator who built a tool that translates coding errors into plain English

Paste your broken code or error. Get a plain-English explanation and the fix in minutes. Built for Lovable, Bolt, Cursor, Replit and v0 builders.

I built an app to see how much the industry pays so that you can build your portfolio to your dream

Singapore job listings by role — pay, skills, requirements, and where jobs are posted.

Proof - All you need (the smartest lift logger)

Proof is a smarter workout tracker for iPhone and Apple Watch. Log the set, see what moved, know what to lift next. It reads your own log and points to the next logical step. Free, no account, your data stays on your phone. Imports from Strong and Hevy.

Open source - Turn By Turn Navigation Device - For Cars/Bikes

The ESP32-S3-Touch-LCD-2.8C is a microcontroller development board that supports 2.4GHz Wi-Fi and Bluetooth BLE 5. It integrates large capacity Flash and PSRAM

I built a free receipt and invoice generator that needs no signup. Looking for feedback.

Make a receipt online for free. No sign-up, no watermark. The PDF is made in your browser and nothing is stored on our server. Download it instantly.

Thought Meadow - A free, open-source iPhone notes app with no account or ads

Thought Meadow: private, local notes for iPhone. Free and open source.

I'm 20, building a B2B startup, and realizing that building the product might be the easiest part

JAS Connect ranks B2B opportunities by real buying signals, shows the evidence behind each, and suggests the next step. For B2B teams in India and worldwide.

How I actually stay focused while working on my computer all day

Talysman blocks distracting websites and desktop apps. Ending a focus session early requires a physical USB key you left in another room — paired from any USB drive you already own.

5 people pay for my workout app. I'm so happy.

Pick muscle or strength, tell Fersonal your equipment and schedule, and it plans each session. Check in before you train and the workout adjusts. Home or gym.

I built a tool that changes the words inside a picture while keeping the original lettering – look

Change the text in an image online and keep the same font, colour and style. Free full-size preview with a watermark; credits remove the watermark.