Browse All Side Projects from Reddit

All Projects (2,262)

I built a TinyPNG alternative that runs entirely in the browser (open source)

Free image compressor that runs in your browser. Shrink, resize and convert PNG, JPEG and WebP in batches. Works offline; images are never uploaded.

Stop sending ChatGPT your private information (open source)

Local redaction for PDFs and spreadsheets. Names, emails and account numbers become consistent labels before you share with AI.

I had +380 games spread across 5 stores and wanted them sorted into one palce, so I built an app to

Llevá el registro de qué jugás, qué completaste y qué tenés pendiente. Sincronizá Steam, PlayStation, GOG, Xbox y Epic Games, desbloqueá logros y competí con amigos.

Looking for feedback on my new minimalist bio-link tool

The modern all-in-one platform for Digital Business Cards and Link in Bio pages. Share social channels, portfolio, videos, and save contacts instantly with zero apps.

I built a free tool that emails you before your domains and SSL certificates expire

Check any website’s SSL/TLS certificate for free: expiry date, days left, issuer, covered domains (SANs) and validity. Get alerts before it expires.

Free tool for clients that kept asking us if they actually need to hire a dev or can just vibe it ou

Describe your project and Vibes Meter scores how confidently you can vibecode it yourself vs. when you should hire a developer. A free tool by Pixlw.

100s of editable Claude 5.5 motion graphics

Free to edit. Free to remix. Built for Claude, ChatGPT, and any coding agent.

Made a Fun Daily Investing Game

A daily investing game. $10,000, a hidden year, three decisions.

I made a to-do app for minimalists with just two lists, Today and Later.

Organize Today and Later, set reminders, and manage tasks offline without an account. Available on iOS and Android.

Dad of two, musician, day job, 9 months of spare minutes: built a chord chart and setlist app for mu

Learn, organize, perform: chord sheets and setlists, cross-platform and offline. Import from Ultimate Guitar, OnSong, SongbookPro, ChordPro.

I built an independent benchmark for AI "decision models", with every test case and answer public

Inspect a frozen 100-case comparison of Jev, Clef, Clef Flash, OpenAI’s Decisions API and a GPT-6 Luna structured-output baseline, including failures, latency, provenance, and downloadable evidence.

Built a cart and backend for hand-coded HTML sites. Looking for 20 users to test it.

I kept rebuilding the same tabs every time I switched projects, so I made a Mac app that gives each

Every project gets its own space — tabs, notes and tools, exactly where you left them.

I built KESI, a collection of free online tools — would love your feedback

Free online tools: HEIC to JPG, WebP to PNG, image compressor, resizer, ID watermark, QR code generator and more. Everything runs in your browser, so your files are never uploaded.

Worked 2 months on my side project, then OpenAI and Gemini blocked my accounts — what should I do?

Tell us what you want to color. We turn it into a printable coloring page.

Spent the last months building a local app that makes AI tools cheaper and undoable. Roast it before

Delta MCP is a free app between your AI apps and their MCP servers. One program per task, not one tool call per step: 3.3–24.1× fewer tokens, measured.

I built a site that turns your IP address into a pixel-art trading card (with stats based on your ac

See your public IP address, location, ISP and ASN instantly, and find out which pixel-art hero your connection is. IPs never stored.

Launched Pagehaus: hosting for people who just want to upload HTML

Pagehaus is plain HTML hosting: upload with SFTP or in the browser, Server Side Includes, contact forms and custom domains with HTTPS.

My watch comparison site got its first Amazon orders, and I've sold 4 usebravery Starter plans

Find the best watch at the best price

AI Golfing Coach - grades your golf swing from phone video, and refuses to guess what the camera cou

Film a swing on your phone. We measure what the camera can actually see.

I've been building Shroud.email, an open-source email alias tool, since 2022. I'd love your feedback

Email, meet privacy. Hide your email address from spammers and hackers by creating email aliases that remove creepy trackers.

billboardo is the place to showcase your work.