Web / Developer

JSON Formatter and JSON Validator

Format, validate and minify JSON directly in the browser. The tool shows parse errors with position, line and column and helps with APIs, configuration files, logs and technical examples.

Mode Indentation

Sort object keys alphabetically Escape slashes as \/ Update output automatically while typing

JSON input

Common use cases

Check APIs

Responses from REST APIs can be formatted for readability and checked for valid JSON syntax.

Clean up configuration

JSON configuration files can be formatted, minified and checked before being pasted into projects.

Find errors faster

For invalid JSON, the tool shows the detected error position with line, column and surrounding context.