Paste JSON
Use compact, copied, or inconsistently indented JSON.
JSON beautifier
Turn compact or inconsistent JSON into a readable document with predictable indentation, making nested objects and arrays easier to inspect.
Data tool
Use compact, copied, or inconsistently indented JSON.
Select two spaces, four spaces, or tabs for the output.
The document is parsed first, so invalid input is reported instead of silently changed.
Make API payloads readable before discussing changes.
Prepare examples for tickets, docs, and support replies.
Inspect deeply nested objects and arrays.
Yes. JSON Formatter is free to use without an account or usage meter.
No. The processing for this tool runs locally in your browser. Entered content is not sent to our server.
No. Formatting changes whitespace only. Property values, array order, and data types are preserved.
Keep working
Validate JSON online and locate syntax errors with line and column details. Format valid JSON without uploading your data.
Remove unnecessary whitespace from JSON while validating the document. Create compact JSON privately in your browser.
Compare two JSON documents by keys and values instead of line order. Find added, removed, and changed paths in your browser.
Flatten nested JSON objects and arrays into dot-notation paths. Inspect configuration, translation, and API data online.