JSON validator
Check that a JSON file is valid and show where the error is.
How to use it
- Add your file or enter your values.
- Adjust the options if needed.
- Run it: the result appears at once and stays on your device.
FAQ
What is JSON validator for?
Check that a JSON file is valid and show where the error is.
How do I use JSON validator?
1. Add your file or enter your values. 2. Adjust the options if needed. 3. Run it: the result appears at once and stays on your device.
Is my data sent anywhere?
No, the calculation runs entirely in your browser.
Is JSON validator free and unlimited?
Yes, no signup, no usage limit.
Which browsers are supported?
All modern browsers, on desktop and mobile.
Does JSON validator work offline?
After a first visit, most tools keep working without a connection.