JSON tools
Free JSON tools that run in your browser: format and minify, validate with exact error positions, browse as a tree, compare two documents, find JSONPath expressions, and convert between JSON and CSV. Nothing is uploaded.
All JSON tools
JSON Formatter
Pretty-print or minify, with 2-space, 4-space, or tab indentation.
Open toolJSON Validator
Tells you which line and column broke, and why — not just that it's broken.
Open toolJSON Tree Viewer
Collapse the noise, search for the one key you actually care about.
Open toolJSON Diff
Compares the data, so reordered keys stop showing up as changes.
Open toolJSON Path Finder
Click a value, get the path to it. Or type a path and jump to the value.
Open toolJSON → CSV
Flatten nested JSON into something a spreadsheet will open.
Open toolCSV → JSON
Turn spreadsheet rows back into objects, leading zeros intact.
Open tool