Features
Repair invalid JSON
Fix common JSON problems like missing quotes, trailing commas, or broken structure.
Formatted result
Get corrected JSON in a readable, indented format.
Large input support
Use it for copied API responses, config snippets, logs, or generated JSON.
Developer workflow
Clean up JSON before using it in code, tests, APIs, or documentation.
How to use it
Paste invalid JSON
Add the JSON that fails to parse or looks broken.
Run the fixer
Submit the form to repair and format the JSON.
Check the output
Review the corrected result before using it in another system.
Common questions
It can help with common formatting and syntax problems, such as missing quotes, extra commas, or malformed copied snippets.
Yes. The app repairs the structure, but you should confirm the values still mean what you expect.
Use JSON Formatter when the JSON is valid and only needs indentation.
Platform basics
For this app, inputs and outputs are kept for up to 1 day. After that, they are deleted from our servers.
See the Privacy Policy and Terms. They explain what is stored, when it is deleted, and when third-party providers are involved.
If an app execution fails, the cost of that failed run is automatically refunded to your balance.
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DAZO