JSON Validator

Check whether your data follows JSON syntax.

Hover over or focus a field for help. Press Escape to close.

JSON

Up to 200,000 characters. Processed locally.

Result

0 UTF-16 units

0Words

0Characters

0Without spaces

0Lines

How it works

Paste your content or load the example. Choose the available options, run the tool, then copy or download the result.

{"valid":true}

✓ JSON

Is my input sent to a server?

No. Your content is processed in this browser. It is never sent to the server or saved.

What should I know about JSON Validator?

Comments and trailing commas are not valid JSON.