// free-tool{ } ⇄ { }
Paste JSON to pretty-print it with your preferred indentation, minify it to a single line, or just validate it — syntax errors are reported with their exact position so you can fix them fast. Everything runs locally; API responses you paste stay private.
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No — formatting uses your browser's native JSON parser. Sensitive payloads never leave the page.
Beautify adds indentation and line breaks for reading; minify strips all insignificant whitespace for the smallest possible payload. Both produce semantically identical JSON.
Parse CSV (with headers) into clean JSON arrays.
Flatten a JSON array of objects into spreadsheet-ready CSV.
Convert JSON into clean, readable YAML for configs.
Parse YAML (with anchors and multi-docs) into formatted JSON.
Serialize JSON objects into well-formed, indented XML.
Parse XML into JSON, preserving attributes and structure.
I build fast, privacy-first web applications with Next.js — these converters run entirely in the browser, and yours can too.