Fast. Light. Private.
Tools that arrive, solve and fly away.
Like a hummingbird: fast and leaving no trace. Everything happens inside your browser — your data never leaves your device.
The tools
Seven everyday utilities. Zero sign-ups, zero waiting.
JSON ⇄ YAML Convert between JSON and YAML, both ways, instantly. JSON Formatter Beautify, minify and validate JSON instantly. QR Code Generator Create QR codes and download them as PNG or SVG. Word Counter Count words, characters, lines and reading time. Password Generator Create strong, random passwords in your browser. Unit Converter Convert length, weight and temperature instantly. Base64 Encoder Encode and decode Base64 with UTF-8 support.
Why Colibrí
Truly private
Everything runs in your browser with JavaScript. Your text, keys and files never travel to a server.
Fast as it should be
Static, lightweight pages with no ads or trackers slowing them down. They open instantly.
No accounts, no cost
No email, no sign-up. If it helps and you want to chip in, there is a coffee for that. Nothing more.