TorixPulse Free Tools / JSON Formatter & Validator
JSON Formatter & Validator
Format, validate and minify JSON instantly. Fast, private and free — everything runs in your browser.
Format and validate JSON online
Paste any JSON and instantly beautify it with clean indentation, or minify it down to the smallest valid output. Invalid JSON is flagged with the exact error message so you can fix it fast.
Why use this tool
- Private — everything runs in your browser, nothing is sent to a server.
- Instant validation with clear, human-readable error messages.
- One-click formatting (2 or 4 spaces) and minification.
Frequently asked questions
Is my JSON uploaded anywhere?
No. All formatting and validation happens locally in your browser. Your data never leaves your device.
What does the validator check?
It parses your input with a strict JSON parser and reports the exact syntax error and position if the JSON is invalid.
Can it minify JSON for production?
Yes. The Minify button strips all whitespace to produce the smallest valid JSON output.