data_objectData
JSON Formatter & Validator
Paste messy JSON and get it back formatted and validated. Errors report the line and column so you can find the stray comma quickly, and the tree view lets you explore large payloads without scrolling through thousands of lines.
JSONValidateFormat
data_object Input
account_tree Formatted
What this tool does
- check_smallFormat with 2-space, 4-space or tab indentation
- check_smallMinify to the smallest valid representation
- check_smallPrecise error messages with line and column numbers
- check_smallCollapsible tree view with key counts and value types
- check_smallOptional alphabetical key sorting
Privacy
This tool runs entirely in your browser using client-side JavaScript. Whatever you paste stays on your machine — there is no back end, no upload and no analytics on your input.