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Free Online Developer Tools

Format JSON and XML, minify code, encode Base64 and URLs, test regex and generate UUIDs and hashes. All in your browser.

Format

Beautify, minify and sort JSON, with clear error messages.

Check if your JSON is valid and find the exact error.

Make messy XML easy to read with clean indentation.

Shrink HTML by removing extra spaces and comments.

Make CSS smaller for faster websites.

Compress JavaScript and shorten variable names.

Convert text to Base64 and back.

Encode or decode special characters in URLs.

Create random version 4 UUIDs, one or hundreds.

Get MD5, SHA-1, SHA-256 and SHA-512 hashes of text.

Test regular expressions and see matches highlighted.