Online JSON Formatter, Validator & Minifier
Format messy JSON with 2-space indentation, validate syntax, and compress into 1 line.
JSON Formatter, Minifier & Validator
Beautify messy JSON, validate syntax with exact error pointers, or minify into a single compact line.
About the JSON Formatter, Validator & Minifier
Beautify unformatted JSON strings into clean, indented code, detect syntax errors with line/column pointers, and minify payloads for production use.
How to Use
Paste raw JSON into the input box and click Format or Minify. Runs entirely in your browser without sending data to any server.
Understanding Results
Validates syntax according to RFC 8259 specifications.
Frequently Asked Questions
Is my data sent to a server?
No, this tool runs 100% client-side in your browser using native JavaScript JSON parsers.
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