JSON Formatter
Free online JSON formatter and validator: pretty-print, minify, and check syntax locally — perfect for API debugging and config cleanup.
Input
Adjust options and run the tool.
Result
Your output appears here.
How it works
- Uses JSON.parse to validate, then reformats.
- Minify strips all whitespace.
About this tool
Format, validate, and minify JSON
Paste JSON to validate syntax, pretty-print indentation, or minify size. Useful for API debugging, config cleanup, and inspecting webhook payloads in email-related flows. Processing stays in the browser.
Tips
Invalid JSON surfaces a parse error. After formatting, pair with the hash generator for digest checks or the Base64 tool for nested encoded fields.
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