JSON Formatter & Validator
Format, validate and minify JSON with helpful error messages.
Valid JSON
How to use
- Paste JSON into the box.
- Pick an indent or Minify.
- Copy the formatted output.
Frequently asked questions
- Is the JSON Formatter & Validator free to use?
- Yes. The JSON Formatter & Validator is 100% free, requires no signup or API key, and runs entirely in your browser.
- Does the JSON Formatter & Validator send my data to a server?
- No. All processing happens client-side in your browser — your input never leaves your device.
- How do I use the JSON Formatter & Validator?
- Paste JSON into the box. Pick an indent or Minify. Copy the formatted output.
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