JSON Formatter & Validator
Format, validate and minify JSON locally.
JSON Formatter and Validator Online
Format JSON into a readable structure, check whether the syntax is valid, and inspect JSON directly in your browser. Vamriko's JSON Formatter is useful for developers working with API responses, configuration files, application data, and other JSON documents.
Use the formatter to make compact or difficult-to-read JSON easier to inspect and validate before using it in a development workflow.
How to Use the JSON Formatter
1. Enter your JSON
Paste or enter the JSON you want to inspect into the tool.
2. Format or validate
Use the available actions to format the JSON and check its syntax.
3. Review the result
Inspect the formatted output and correct invalid JSON before using it.
JSON Formatter FAQ
What does a JSON formatter do?
A JSON formatter reorganizes valid JSON into a more readable structure with consistent indentation and spacing.
Can I validate JSON with this tool?
Yes. The tool can check JSON syntax and help identify malformed input.
Can I format JSON from an API response?
Yes. You can paste JSON returned by an API or another application and format it for easier inspection.
Does the JSON formatter require an account?
No account is required to use the tool.
Can I use it for JSON configuration files?
Yes. It can help you inspect JSON-based configuration data when the content follows valid JSON syntax.