Free JSON Validator
Use EasyUtils JSON to check whether pasted JSON is valid. When the browser parser provides an error position, the tool converts it into a practical line and column hint so you can fix missing commas, unquoted keys, trailing commas or broken strings faster.
Common JSON errors to check
- Trailing commas after the last object or array item.
- Single quotes where JSON requires double quotes.
- Missing commas between fields.
- Comments copied from JavaScript objects.
Related JSON tools
You can also format JSON, minify JSON, or use the full JSON toolbox for JSONPath, schema and JWT helpers.