We do not store your data. All processing happens in your browser.

Static + Browser-Only

JSON / Payload PII Masking Tool

Paste a JSON payload, mask common PII fields in the browser, then copy or download the sanitized result. No server processing required.

Input

Raw JSON payload

Paste JSON and run masking.

Output

Masked JSON

Why Use It

Built for teams that do not want to send raw payloads to AI tools

This tool was created for cases where customer or system data needs to be reviewed, shared, or pasted into prompts, tickets, chats, and documents without exposing raw personal information first.

  • Mask sensitive fields before sharing payloads with AI systems or external tools
  • Keep redaction local to the browser instead of sending raw data to a backend
  • Useful for support logs, QA payloads, internal reviews, and vendor communication

How It Works

Masking logic

The tool checks common sensitive field names first, then applies pattern-based masking for values such as email addresses and phone numbers found in plain text.

  • Field-based masking for keys like `email`, `phone`, `clientSecret`, and `customerId`
  • Pattern-based masking for values embedded in strings
  • Pretty-print and copy/download options for clean handoff

FAQ

Common questions

Does this upload my JSON anywhere?

No. The masking runs entirely in the browser on the current page.

Can I add my own masking fields?

Yes. Add custom field names such as `customerId`, `reservationCode`, or `caseNumber` and mask again.

Who is this tool for?

This tool is for anyone who handles customer or system data and needs to review, share, or troubleshoot JSON safely, especially across engineering, support, operations, analytics, and compliance workflows.

Technical Detail

Why your data is not sent to a server

This tool runs as a static page in the browser. When you click Mask Payload, the JSON is parsed and masked in client-side JavaScript in the current tab.

  • No form submission is used for the masking flow.
  • No fetch, XMLHttpRequest, or API call runs during masking.
  • The page uses local JavaScript logic, including JSON.parse() and regular expressions.
  • The payload is only written back to the output field unless you copy or download it yourself.
  • The masking flow does not store the payload in browser local storage.