```Last month I shipped three developer utilities — a Base64 encoder, a Unix timestamp converter, and a CSS minifier. Each one runs100% in your browser. No servers, no uploads, no analytics, no tracking. \ Yesterday I open-sourced them on GitHub. This post is the story of why I built them this way and why I open-sourced them at all. The problem with "free online tools" Most "free online tools" secretly upload your input to a server, process it there, and hope nob...