Validate and format JSON into a readable structure. Invalid documents return a precise validation error instead of silently changing data.
How to use this tool
Paste JSON, choose the indentation width, and run the formatter. The result can be copied from the output panel.
Frequently asked questions
Is my input stored?
Execution history keeps only a bounded summary. File contents and complete long text inputs are not copied into the audit log.
Can I use this without an account?
Yes. Guest usage is supported within the configured hourly limit.