JSON Formatter & Validator
Format, minify, and validate JSON without sending data to a server.
Valid JSON
What is this tool?
JSON (JavaScript Object Notation) is a lightweight data format used in APIs, config files, and web apps. This formatter validates your JSON and lets you switch between human-readable pretty-print and compact minified output.
How to use it
- Paste or type JSON into the input box.
- Choose Pretty print or Minify.
- Fix any validation errors shown with line/column details, then copy the output.
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