How to use JSON Formatter & Validator
- Open JSON Formatter & Validator and paste your input.
- Choose format, encode, or validate options as needed.
- Copy or download the output. Nothing is required to leave this tab for local transforms.
Developer Tools
JSON Formatter & Validator
Pretty-print, minify, and validate JSON in your browser. Runs locally in your browser.
Ready — processing stays in your browser.
About JSON Formatter & Validator
Pretty-print, minify, and validate JSON in your browser. Paste or type input, then copy the result from this browser tab.
What to expect
- Text transforms and checks run in the browser
- Useful for debugging payloads, hashes, and encodings
- No account required for everyday use