JSON Validator

Validate a JSON document and see the error line and column when the browser provides a position.

Ready.

How to use this tool

Check JSON syntax and locate errors. Enter your data above, choose the action, and review the result before using it elsewhere.

Top-level arrays, strings, numbers, booleans, and null are valid JSON too.

An error position points to where parsing failed, which can be after the actual typo.

Common questions

How does JSON Validator work?

Top-level arrays, strings, numbers, booleans, and null are valid JSON too.

What should I check before using the result?

An error position points to where parsing failed, which can be after the actual typo.

Is my input uploaded?

No. This tool processes input in your browser. OctalPilot does not receive the content you paste here.