How it works
How to use Validate JSON
- Add your file or paste the text requested by the tool.
- Adjust the available options for the result you need.
- Run the tool and download the finished output.
Data tool
Validate JSON
Check JSON syntax and return a validation report.
Add your input
Your file stays in this browser.
Good to know1 file · 50 MB max
Upload a JSON or text file or paste textResult: text files
- Your file stays in this browser while the tool runs.
- Large table previews are capped; downloads keep the complete processed output.
Privacy
Built for local-first processing
PrivConvert keeps everyday file work in the browser whenever the tool can run locally. No sign-up is required, and tool pages are generated from transparent input, output, and limit metadata.
Input
Upload a JSON or text file or paste text
Output
text files
Limits
1 file · 50 MB max
FAQ
Validate JSON questions
Is Validate JSON free to use?
Yes. This tool is free to use in your browser and does not require an account.
Are my files private?
PrivConvert is designed for local-first processing. Files are handled in your browser when supported and are not uploaded for account-based storage.
Why might a file fail to process?
Your file stays in this browser while the tool runs.