CodeKitHub Quick Tools by CodeKitHub

12 free offline developer tools in one popup: JSON formatter, Base64, URL encoder, timestamp, UUID, hash generator, regex tester, color converter & more. 100% local, no data collection.

Available on Firefox for Android™

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About this extension

CodeKitHub Quick Tools puts 12 of the most useful developer utilities right in your browser toolbar — no tab-switching, no sign-up, no data ever leaves your browser.

Includes:
• JSON Formatter — format or minify JSON instantly
• Word Counter — words, characters, and lines as you type
• Base64 Encoder/Decoder — with full Unicode support
• URL Encoder/Decoder
• Unix Timestamp Converter — convert between timestamp and readable date
• UUID v4 Generator
• Case Converter — UPPERCASE, lowercase, Title Case, camelCase, snake_case, kebab-case
• Password Generator — customizable length and character sets
• Hash Generator — SHA-1, SHA-256, SHA-512
• Color Converter — pick a color or convert between HEX, RGB, and HSL
• Percentage Calculator
• Regex Tester — live match results as you type

Everything runs 100% locally in your browser using plain JavaScript. No network requests, no analytics, no permissions beyond the popup itself.

For 120+ more free browser-based tools (calculators, converters, image tools, AI prompt libraries, and more), visit codekithub.com.

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