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 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.
• 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.