Browse All Side Projects from Reddit

All Projects (4,064)

I built kosapex so ChatGPT stops dying in the copy-paste step

Give your agents CRM, follow-ups, bookings, and company knowledge, or deploy your own micro Apps. You control your data and approve actions before they run.

[iOS] Prevent heart issues by tracking blood pressure the right way

Designed by a preventive cardiologist, built on the 2025 AHA/ACC guideline's recommended way to actually measure blood pressure: two readings, a minute apart, averaged.

I built a vocabulary app that lets you discover words and save the ones you encounter

Create AI-powered vocabulary lists and explore language tools tailored to your learning goals.

I built a tool with no app and no dashboard — you just text it

Text a job reminder in 3 seconds. MemoTask logs it, calculates the date, and sends the reminder automatically. Built for UK tradespeople and letting agents.

Created this 🔥🔥 explainer video for my SaaS Letterly in less than an hour

Transform your newsletter into engaging social media content for LinkedIn and X. AI-powered voice cloning, automated scheduling, and comprehensive analytics.

I got tired of wasting time on Windows, so I built this

Launch apps, restore window positions, and rebuild your complete Windows workspace in one click. Create profiles for laptops and multi-monitor setups.

I built a tool that shows how your website can make money from AI agents.

Your website is now open for agent business. Let AI agents pay for content, files, data, and API requests with managed x402 payments.

Vibenest

Create a profile that sounds and looks like you. Bring your links, music, videos and favourite communities together in your own corner of the internet.

I got tired of losing good AI answers in endless chat feeds, so I built a zero-database web notepad

Hi everyone, I'm a solo dev from Japan. I use AI chat tools every day for coding and research, but one thing drove me crazy: the best answers, code snippets, and prompts always get buried in the endless chat history. I didn't want another heavy cloud note app, and I definitely didn't want to feed my private notes back into AI training. I just wanted a simple, lightweight place to save those answers locally as clean markdown (.md) files. So I made VanillaPad. It runs on pure PHP

A simple operating system for getting real work done with AI agents

How to Decide, Delegate, and Build Systems That Remember. A practical book for knowledge workers who want to use AI as a real operating layer.

Arca - a calmer iPhone reader for tech news and podcasts (55-second preview)

Join the waitlist to try Arca, a calmer way to follow technology news and podcasts.

301 users. Not viral, not huge but this project is finally growing.

Save links, articles, tools, videos, and research sources in one private vault. Find the right link later with AI — even when you only remember the idea.

looking for people to test a workout planner i’m building (closed beta)

Personalised daily workouts generated by AI

I kept hitting Claude Code limits mid-task, so I built a menu-bar app that shows every account's lim

Codex·Claude Code의 활동, 사용량, 남은 한도와 Codex 리셋권을 확인하세요. Mac·Windows에서 시작해 iPhone·Android로 이어서 확인하는 무료 Agent Cat.

My usual workflow involves n different file types, created by multiple AI agents and I had serious t

A free, native markdown viewer and reader that also opens PDF, Jupyter notebooks, LaTeX (with KaTeX math), JSON/YAML/XML, Parquet, SQLite, zip/tar archives, images, and 50+ code languages — with tabs, split view, and streamed viewing of huge logs and CSVs. Under 6MB. Windows, macOS, Linux.

I got tired of every free online scanner wanting my ID on their server, so I built one that runs in

LensUp is a free online document scanner: turn a photo into a clean, printable PDF — crop, de-shadow, and compress toward a target size. No upload, no sign-up.

First customer in 30 days!

A personal library for books, records, games, films, and the objects that tell your story.

I built a phone-first quoting and invoicing app for Australian tradies

Quotes, invoices and workshop tools for tradies. Sign in with an email code.

I built an app for shifting your identity: custom subliminals, hypnosis, meditation and EFT tapping,

Subliminals, meditations, hypnosis, and EFT tapping — generated for your specific identity work. Not generic self-help. Precise adjustments.

PressWork 4.5: import a whole Markdown folder — Notion, Obsidian, or just a folder of notes

Writing, data, signing and editorial production in a local-first ecosystem. For authors, professionals and publishers.

I removed my LLM app's guardrails one at a time and replayed recorded attacks. 4 of the 6 in the cha

The attacks this kit is tested against: what each one costs when it works, which guardrail stops it, and — in the same detail — what the evidence does not prove.