Formatters, validators & diff
Beautify, minify and validate JSON, YAML and XML, or compare two snippets with a unified diff — free and 100% in your browser.
- JSON Formatter & Beautifier — Free Online Tool Format, beautify or minify JSON instantly in your browser, with 2 or 4 spaces and key sorting. Free and private: your data never leaves your device.
- JSON Minifier — Free Online Developer Tool Minify JSON online: strip whitespace and line breaks to shrink it down to a single compact line. Free, private and 100% in your browser.
- JSON Sorter — Free Online Developer Tool Sort JSON object keys alphabetically and recursively, then pretty-print the clean, diff-friendly result. Free, private and 100% in your browser.
- JSON Validator — Check JSON Syntax Online for Free Validate JSON syntax instantly in your browser, with line and column on errors. Free, private and offline-friendly: your data never leaves your device.
- YAML Formatter & Beautifier — Free Online Tool Reformat YAML with consistent indentation and optional key sorting, in your browser. Free, private, offline-friendly: your data never leaves your device.
- YAML Validator — Check YAML Syntax Online for Free Validate YAML syntax instantly in your browser with precise error positions. Free, private and offline-friendly: your data never leaves your device.
- XML Formatter & Beautifier — Free Online Tool Pretty-print XML with consistent indentation, in your browser. Attributes, comments and CDATA preserved. Free and private: your data stays on your device.
- XML Minifier — Free Online Developer Tool Minify XML online: strip whitespace and line breaks to shrink it down to a single compact line. Free, private and 100% in your browser.
- XML Validator — Free Online Developer Tool Validate XML online and instantly catch syntax errors with a clear message and their exact position. Free, private and 100% in your browser.
- HTML Formatter — Free Online Developer Tool Format and beautify HTML with consistent indentation — turn minified or messy code into readable code. Free, private and 100% in your browser.
- HTML Minifier — Free Online Developer Tool Minify HTML online: strip whitespace and line breaks to shrink it down to a single compact line. Free, private and 100% in your browser.
- CSS Formatter — Free Online Developer Tool Format and beautify CSS with consistent indentation — turn minified or messy code into readable code. Free, private and 100% in your browser.
- CSS Minifier — Free Online Developer Tool Minify CSS online: strip whitespace and line breaks to shrink it down to a single compact line. Free, private and 100% in your browser.
- JavaScript Formatter — Free Online Developer Tool Format and beautify JavaScript with consistent indentation — turn minified or messy code into readable code. Free, private and 100% in your browser.
- JSON Diff — Compare Two JSON Files Online Compare two JSON documents and see the differences as a unified diff. Key order and indentation are ignored. Free, private, right in your browser.
- Text Diff — Compare Two Texts Online for Free Compare two texts line by line and see the differences as a unified diff, right in your browser. Free and private: nothing is ever uploaded.