Metronome Online is a simple and intuitive metronome app that provides an animated metronome and sound to help you keep time while practicing music. With an adjustable BPM, it's perfect for musicians of all levels.

A simple collection of helpful online tools I often use and recommend.

Rui Quintino (with 🤖) Web Snippets Playground

A lightweight Node.js tool for checking HTTP redirects for large lists of URLs and exporting results to CSV.

Bookmark_Cleaner is a Python tool designed to automatically scan, organize, and clean your browser bookmarks. It detects and removes duplicates, dead links, and empty folders, making your bookmark collection tidy and efficient. Ideal for anyone who wants to maintain a well-organized set of online resources.

🔗 Minimal vanilla JS directory listing app for managing multi-environment service links in Distroless Docker image

Common TypeScript web utilities

Offline HTML tool to paste code and instantly download it as a file with automatic language detection, local history, and zero setup.

API Navigator enables developers to traverse large and complex API References smoothly and efficiently through a top-notch PWA.

A handy, privacy-first toolkit for web developers. No sign-ups, no tracking, and no limits-just a collection of fast, local tools for data conversion, CSS generation, and code formatting. Built with Next.js and Monaco.

Social share urls - no hassle

Growing collection of small, purposeful web utilities focused on security hardening, performance insight, and day‑to‑day frontend workflow improvements.

A simple, client-side AI chatbot that runs entirely in your browser. Features real-time streaming, tool support, and local persistence for your chats and API keys. No backend needed-just plug in your key and start chatting.

A lightweight JavaScript library to turn selected text into links with a customizable tooltip UI — perfect for editors, note apps, and rich content creators.

A privacy-first collection of useful web tools (compression, encryption, image editing, etc...) that run entirely in your browser. No server uploads, no ads.