Format, validate, minify and beautify JSON in your browser. Every tool reports the exact line and column of a syntax error, and nothing is uploaded.
4 tools in this category.
Turn minified or messy JSON into clean, indented, readable output — and catch syntax errors while you are at it.
Expand compressed JSON into a wide, readable layout — ideal for reading an API response you did not write.
Strip all whitespace from JSON to shrink API payloads and config files, with a byte-for-byte savings report.
Check whether JSON is valid and get the precise line and column of any error, plus structural statistics.