Turn CLI tools and AI agents into MacGyver. Gives command-line and AI agents superpowers by connecting them to real-world tools and APIs. Developer tool for agent builders. #12 on Product Hunt with 85 upvotes.

A reverse-engineered version of Claude Code's browser automation, rebuilt as an open-source Chrome extension. Same 18 browser tools, same performance, but removes the 58-domain blocklist and works in any Chromium browser. Full browser automation for Claude without restrictions. Free and open source.

iOS invoicing app for freelancers with AI-powered receipt scanning, photo-to-invoice generation, 15 PDF templates, AI-generated contracts, expense tracking, profit/loss reports, recurring invoices, WhatsApp/email sharing, payment links with QR codes, and e-signatures. Works offline. Supports 6 languages. Solo developer project.

NSE stock scanner and analysis tool for Indian equities. Browse market data, screen stocks, and track trends. Clean web-based interface deployed on Vercel.

Free travel app for Korea with 16,000+ places. Alerts you when near temples, palaces, national parks, and festivals. Smart alert throttling, fully offline database, daily historical events connected to real places, and pet-friendly info for 800+ spots. iOS live, Android in beta. Built by a solo Korean developer. 100% free, no ads.

Privacy-focused file tools that never upload anything. Convert, compress, edit files entirely in-browser. Replaces 6+ bookmarked file tools with one that processes everything locally on your device.

Anonymous venting site where you can write about anything bothering you. No signup, no accounts, no judgment. Just type and let it out. Simple therapeutic outlet built as a side project.

Daily word puzzle game with 500+ daily active users. A fresh challenge every day in the tradition of Wordle-style brain teasers. Simple, addictive, no-signup gameplay.

Open-source feedback loop for AI coding agents. Thumbs-down generates a prevention rule that fires before the tool call, so the agent literally cannot repeat the same mistake. Thumbs-up reinforces good patterns. Uses Thompson Sampling for rule confidence scoring. Fully local, no cloud. Built to fix the amnesia problem in Claude Code and similar agents.

Collaborative AI-powered interactive story where every visitor sees the same narrative and votes on what happens next. No accounts, no logins. Choose from allowed options to steer the plot while rate limiting and cooldowns keep it coherent. A shared storytelling experiment.

Free interactive map showing 1,000+ Tokyo spots recommended by Korean YouTubers. Browse curated restaurants, cafes, shops, and hidden gems across Tokyo neighborhoods. Built as a travel companion for anyone visiting Japan.

Open-source cinematic lyric video player built with pure vanilla JavaScript and Canvas. No frameworks, no dependencies, one file. Load your own audio, image, and lyrics to render a cinematic lyric experience directly in the browser.