krri.sh Developer Tools

A privacy-first developer toolbox in a resizable browser side panel.

krri.sh Developer Tools puts 20 focused utilities inside Chrome's resizable side panel, so developers can transform, inspect, validate, and generate data without constantly switching tabs. Everything runs locally in the browser. The extension does not require an account, upload your working data, run analytics, or execute remote code. Included utilities: • Encoder / Decoder — Base64, URL, and text encoding • JSON Validator — validate and format JSON • JSON Display — explore JSON as a collapsible tree • JSON Spy — inspect structures and key distribution • JSON2TOON — convert JSON to TOON notation • Regex Tester — test expressions and live matches • Epoch Converter — convert timestamps and dates • Crontab Generator — build and explain cron expressions • JWT Decoder — inspect token headers and payloads • Diff Checker — compare text side by side • Mock Data Generator — create JSON, CSV, XLSX, or SQL data • cURL Converter — convert cURL into code snippets • WebKnife — run HTML, CSS, and JavaScript • PaletteKnife — generate harmonious color palettes • Form Knife — build forms from JSON schemas • Supabase Helper — generate self-hosting keys • Format Knife — convert XML, CSV, and Excel • SwagKnife — convert cURL to Swagger YAML • UnicodeKnife — convert Unicode code points • UUID Knife — generate and format UUIDs Why install krri.sh Developer Tools? • Opens instantly from the Chrome toolbar • Stays available beside the page you are working on • Resizes with Chrome's native side panel • Searchable tool launcher • No account, advertisements, analytics, or tracking • User-provided data stays on the device