Free Online Developer Tools
A collection of essential developer tools that work directly in your browser. No registration required, no data sent to servers - everything happens locally.
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Try JSON FormatterFeatured Tools
Our most popular tools that developers use every day
Free online JSON formatter and validator. Format, validate, beautify and minify JSON data instantly. No registration required - works directly in your browser.
Free online Base64 encoder and decoder. Encode text to Base64 or decode Base64 strings instantly with our easy-to-use tool.
Free online URL encoder and decoder. Encode URLs for safe transmission or decode URL-encoded strings instantly.
Free online XML formatter, minifier and validator. Format XML with proper indentation, compress XML for production, or validate XML syntax.
Free online YAML to JSON and JSON to YAML converter. Convert between YAML and JSON formats instantly with validation.
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Formatters
Format and beautify your code
Converters
Convert between different formats
Validators
Validate your data and code
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Utilities
Essential development utilities
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