Free online utilities for developers: format, validate, and minify JSON, XML, and HTML instantly. Fast, private, and runs entirely in your browser.
Format, validate, and minify JSON with syntax highlighting-ready output.
打开工具Validate JSON syntax and get clear error messages.
打开工具Compress JSON by removing whitespace and line breaks.
打开工具Beautify and minify XML with proper indentation.
打开工具Check if XML is well-formed and get error details.
打开工具Beautify HTML with clean indentation and structure.
打开工具Encode text to Base64 or decode Base64 back to plain text.
打开工具Encode or decode URL components and query strings safely.
打开工具Generate random UUID v4 identifiers instantly.
打开工具Generate SHA-1, SHA-256, and SHA-512 hashes from text.
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