Browse All Side Projects from Reddit

All Projects (6,181)

I have been building a small portfolio of mobile apps

I build useful apps and share the ideas, lessons, and little details behind them. Your support helps me keep creating.

I built a no-signup calculator for comparing newsletter free-plan limits

Enter your audience and sending pattern to see which published Kit, MailerLite or Brevo Free-plan boundary you reach first.

Bunko - a reader for Chinese and Japanese classics with pinyin, furigana and parallel text

Public-domain classics in English, Chinese and Japanese, with a reading above every character.

Tired of paying 100+/mo for Apollo & scrapers, so I built a self-hosted AI Lead Finder with Docker &

🎯 Autonomous AI B2B Lead Finder & Cold EmailerPay once. Run 24/7 on your own system. No monthly subscriptions.Tired of paying $100+/month for lead scrapers and outreach tools? Run this self-hosted AI engine on any machine (Windows, Mac, Linux, or VPS) to discover targeted B2B leads and email them automatically on autopilot.⚡ What it does (Autopilot Pipeline):• AI Market Targeting: Finds active SMBs in any niche & country you specify in .env (zero coding needed).• Deep Email Scraping: Extracts verified public contact emails (info@, contact@, hello@) & takes website screenshots.• Spam-Proof AI Outreach: Generates 100% unique, personalized email pitches for each prospect based on their business and your offer.• Modern HTML Email Template: Delivers clean, responsive emails with plain-text fallback & compliant opt-out footers.• Local CSV Database: Automatically deduplicates and logs all leads into a ready-to-use .csv spreadsheet.• Live Telegram Alerts: Real-time notifications sent straight to your phone when a lead is found & contacted.📦 What is included:• Complete Source Code: Clean, modular TypeScript engine (v1.2).• Universal Docker Setup: 1-command launch on Windows, Mac, Linux, or VPS.• 1-Click Testing Tools: Built-in SMTP connection tester & visual HTML template preview.• 5-Min Setup Guide: Ultra-simplified, step-by-step documentation designed for beginners.• Lifetime Updates & Direct Support: Pay once, get all updates. Support: support@rachidnichan.com

Spent months fighting Zephyr and TestRail before building our own test case management tool

Hawzu is a modern test case management platform — manage test cases, runs, requirements, defects, and releases in one place. Ask Oracle a question about your project in plain English and get the records, a chart or an answer from your own documents. AI generates test cases from your requirements — mapping your coverage first — defects live on a native Kanban board, and analytics are built in. Automation-agnostic: plug in any framework via API. Start free.

I built Dotbot, an open-source desktop workspace for coding-agent sessions

We build software, AI systems, and digital solutions for businesses solving real-world problems.

I kept losing track of what runs where, so I built a live map of my infra

A live map of your servers, domains, databases and SaaS — health-checked, with secret expiry tracking.

I built a free whiteboard app for math teachers — one-stroke shapes, PDF annotation, laser pointer

A fast whiteboard app for iPad, iPhone, Mac, Android, and Windows. Use Apple Pencil on iPad, import PDFs, switch between pages and an infinite canvas, then export or share. Linux packages are available for x86_64 and ARM64.

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