JSON validator & beautifier
Use JSON validator & beautifier to check JSON syntax and improve its readability. Follow the steps, review an example, and check the output.
JSON validator & beautifier: check JSON syntax and improve its readability
Use JSON validator & beautifier to check JSON syntax and improve its readability. Inspect a configuration sample, copied response, or test payload without manually indenting every nested value.
How to use JSON validator & beautifier
Paste a JSON sample, run the tool, and review the validation feedback or formatted result.
Example and practical checks
Try an object containing a string and a number, then compare the indentation of nested values. Check the result in the application where you plan to use it.
What to check before copying
Valid JSON syntax does not prove that the data follows your application schema or contains correct values. Check required fields and types separately.
Common questions
Can I include ordinary JavaScript code?
JSON is a data format with its own syntax. JavaScript expressions, comments, or trailing commas may not be accepted as JSON.
Related tools
For other code-formatting work, compare JS minifier, SQL formatter/beautifier, and HTML minifier. These handle different source formats, so use the tool that matches your input.
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