Everything we build

A place to post questions, notes and errors, and get answers. Threaded discussions, hashtags, live search, and Java tutorials with interview Q&A alongside them.

A fast alternative to Postman and Insomnia. Compose requests, script tests, mock APIs and inspect responses down to the TLS handshake — all stored locally.

A collection of small, fast calculators and generators that run entirely in your browser. No sign-up, no upload, nothing leaves the page.

Everyday developer utilities — formatting, encoding, converting and inspecting text — that run in the browser with nothing to install.