Developer Tools
A workshop of 46 utilities for engineers: format JSON, generate TypeScript or Go types, decode JWT tokens, convert cURL commands, inspect HAR files, and minify CSS/JS. Everything is generated in your tab and never sent to a backend.
48 tools·Free·100% local·No uploads
.env Helper
Generate .env.example, scan for secrets, diff environments.
Cron Generator
Build cron expressions with live preview of the next 5 firing times. Each field validates independently. Runs in your browser.
Cron to Human
Translate cron expressions to English.
CSS Minifier
Minify CSS to reduce file size.
CSS Unit Converter
Convert CSS units between px, rem, em, and pt.
CSV to HTML Table
Convert CSV data to formatted HTML table markup.
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Why local?
Your photos and files never leave your device. No uploads, no servers, no file size limits.
● local · MIT · 2026
built quietly
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