Static + Browser-Only
Paste copied worksheet rows or a spreadsheet export and mask common sensitive columns in your browser before sharing it with AI tools, tickets, chats, or documentation.
All processing happens locally in your browser. No server processing required.
Input
Output
Use Cases
Use this tool when spreadsheet exports or tabular customer data need to be shared without exposing raw personal information first.
Masking Logic
Mask Payload reads the header row first, then masks cells under common sensitive column names such as email, phone, cardNumber, token, or password.
Privacy Detail
This tool runs as a static browser page. It processes pasted worksheet data in client-side JavaScript in the current tab. No form submission, fetch request, XMLHttpRequest, or masking API call is used during the masking flow.
fetch, XMLHttpRequest, or API call runs during masking.FAQ
No. The masking runs entirely in the browser on the current page.
Yes. Add custom field names such as internalNote, caseNumber, or vendorRef and mask again.
Mask Payload is for analysts, support teams, operations teams, and anyone who needs to share Excel exports more safely.
Excel and spreadsheet files are commonly exported from admin dashboards, analytics systems, billing tools, and CRM platforms. Those exports may include direct identifiers, contact information, and internal notes that should not be shared in raw form.
A browser-based Excel masker helps preserve the usefulness of tabular examples while reducing the chance that sensitive customer fields are passed to external systems.
Examples
These short examples show the kind of input this page is built for and the kind of cleaned result you can expect before sharing data externally.
email,phone,status john.doe@example.com,416-123-4567,active
email,phone,status ****,****,active
Tool Directory
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