JSON Data Anonymizer

Anonymize sensitive data in JSON automatically. Detects and masks emails, passwords, tokens, API keys, phone numbers, SSNs, JWTs, and other PII fields.

Input

json

loading editor…

Paste JSON with sensitive data here...
or drop a file anywhere in this pane

Output

json

Anonymized JSON will appear here...
press ⌘↵ to anonymize

What Is This Tool?

Automatically detect and anonymize sensitive data in JSON. The tool scans for common sensitive fields (passwords, tokens, emails, SSNs, phone numbers, API keys, JWTs) and replaces them with anonymized values while preserving the data structure.

How to Use

Paste JSON data containing sensitive information.
Click Anonymize to process the data.
Use the anonymized output in documentation, demos, or debugging.

Frequently Asked Questions

Is this tool safe?

Yes. Processing is 100% client-side with no server upload.