API payload review
Expand a compact payload from a log or request inspector before you debug it.
Developer tools
JSON formatter and validator
Format, minify, and validate JSON in the browser with clear feedback and one-click copy.
Validation status will appear here.
How to use
- Paste JSON into the editor.
- Choose format or minify.
- Review the validation state and copy the output when it looks correct.
Why this tool is useful
Paste JSON to format it for readability or minify it for transport and storage.
The validation message makes it easier to catch syntax issues before the payload reaches production.
Examples
FAQ
Does this change the data itself?
No. The formatter only changes presentation and whitespace.
Related tools
Base64 encoder and decoder
Encode plain text to Base64 or decode Base64 back to text with quick copy actions.
Text difference checker
Compare two text blocks in line mode or word mode with whitespace and case toggles.