DevToolKit - 14 Free Browser Developer Tools (No Tracking, Offline, 7 Languages)

What is DevToolKit?

DevToolKit is a collection of 14 essential developer tools that run entirely in your browser. No server, no tracking, no sign-up required.

Tools Included

• JSON Formatter - Format, validate, and beautify JSON
• Base64 Encoder/Decoder - Encode and decode instantly
• URL Encoder/Decoder - URL-encode and decode text
• JWT Decoder - Decode and inspect JWT tokens
• Timestamp Converter - Unix timestamps to dates
• UUID Generator - Generate UUID v4
• Hash Generator - MD5, SHA-1, SHA-256, SHA-512
• Diff Checker - Compare texts and find differences
• Markdown Preview - Live preview of Markdown
• CSS Gradient Generator - Create CSS gradients
• JSON ↔ CSV Converter - Convert between formats
• Lorem Ipsum Generator - Placeholder text
• Color Converter - HEX, RGB, HSL
• Regex Tester - Test regular expressions

Key Features

• 100% Private - all processing in your browser
• Works Offline after initial load
• 7 Languages supported (English, Chinese, Japanese, Korean, Spanish, Portuguese, French)
• Always Free - no premium tiers, no usage limits
• No cookies, no analytics, no tracking

GitHub | Live Site

Tags: #devtools #webdev #javascript #productivity