Developer Tools
Everyday utilities for developers and site owners: format JSON, minify code, encode data and generate passwords or QR codes.
DeveloperJSON FormatterBeautify, minify, sort and validate JSON with clear error messages.Open tool 
DeveloperHTML MinifierMinify HTML by removing comments and extra whitespace.Open tool 
DeveloperCSS MinifierCompress CSS by removing comments, whitespace and extra characters.Open tool 
DeveloperPassword GeneratorGenerate strong, random passwords with custom length and characters.Open tool 
DeveloperQR Code GeneratorCreate QR codes for links, text, phone, email, Wi-Fi and WhatsApp.Open tool 
DeveloperBase64 Encoder / DecoderEncode text to Base64 or decode Base64 back to text (UTF-8 safe).Open tool 
DeveloperURL Encoder / DecoderPercent-encode special characters in URLs or decode encoded links.Open tool Free developer tools in your browser
Quick utilities for developers, site owners and marketers who work with code and data. Every tool runs locally, so API responses, tokens, passwords and client data never leave your machine.
What is included
- Data: format, minify, sort and validate with the JSON formatter and JSON validator.
- Performance: shrink markup and styles with the HTML minifier and CSS minifier.
- Encoding: the Base64 encoder/decoder and URL encoder/decoder.
- Security: strong, random passwords from the password generator.
- Sharing: the QR code generator for links, WiFi and WhatsApp.
Why local tools are safer
Pasting sensitive data into online tools that send it to a server is a real security risk. Our developer tools use standard browser APIs such as JSON.parse, TextEncoder and crypto.getRandomValues, so the work happens on your device. You can even disconnect from the internet after the page loads and the tools keep working.