JSON Formatter & Validator
Beautify, minify, and validate JSON instantly.
Loading workspace…
How to use JSON Formatter & Validator
- Enter the values or paste the content you want to process.
- Choose the available processing and output options.
- Run the tool, review the result, and use the copy or download option provided.
Continue your workflow
Inspect an API payload — Validate, compare, and export structured data.
What to expect
Paste JSON with double-quoted keys and valid values. Format adds indentation, while minify removes unnecessary whitespace. Invalid JSON is reported without modifying your input.
Local processing
Your files and inputs are processed in your browser and are not uploaded. Download or copy results before leaving. Normal site and library requests still reach the hosting service.
Frequently asked questions
What does JSON Formatter & Validator do?
Beautify, minify, and validate JSON instantly. Paste JSON with double-quoted keys and valid values. Format adds indentation, while minify removes unnecessary whitespace. Invalid JSON is reported without modifying your input.
Are my files or input sent to a server?
Your files are processed locally in your browser and are not uploaded. Text inputs and passwords also stay in the tool on your device. The hosting service still receives normal requests needed to serve the website.
Can I recover a result after closing the page?
Download or copy your result before closing or reloading. Optional local history stores tool names and activity counts, not your inputs, passwords, filenames, or results.