FileXTools › Tag files by data sensitivity
100% client-side · no upload

Tag files by data sensitivity

Before you file, share, or archive a document, get a quick read on what sensitive data it actually contains. FileX scans for the same patterns the Anonymize tool detects — emails, phone numbers, card numbers, Aadhaar, PAN, SSN, IBAN — and suggests a classification level, all locally in your browser.

Open in FileX (Pro) →
A FileX Pro feature · runs 100% in your browser · no upload

How it works

  1. Open the Classify tool (a FileX Pro feature) and drop in a file — plain text, CSV, JSON, PDF, or Word (.docx) — or paste text directly.
  2. FileX extracts the text (for PDF and Word, entirely in your browser) and scans it for personal and financial data patterns.
  3. Get a suggested classification (Public, Internal, Confidential, or Restricted) and download a summary report as .txt, .html, or .pdf.

A starting point, not a certification

Classification here is heuristic pattern matching — the same detectors the Anonymize tool already uses, with checksum validation where the format allows it (Luhn for card numbers, Verhoeff for Aadhaar, mod-97 for IBAN). It is a fast, useful starting point for triage, not a legal or compliance certification. Always review the result against what you actually know about the document.

How the levels are decided

Restricted: any financial account or government-ID pattern (card, Aadhaar, PAN, SSN, IBAN) is present. Confidential: personal contact information (email, phone, IP address, a date pattern) is present, with none of the above. Internal: something was detected (e.g. a bare URL) but nothing personal or financial. Public: nothing matched.

Frequently asked questions

Is my file uploaded to classify it?

No. The file is read and scanned entirely in your browser using the same pattern-matching engine as the Anonymize tool. Nothing is uploaded.

What file types are supported?

Plain text (.txt, .md, .log, .csv, .json), PDF, and Word (.docx) — or pasted text directly. PDF and Word files have their text extracted locally in your browser before scanning; nothing is uploaded.

Can I act on the classification directly?

The report is a summary for your own records. To actually remove the detected data, use the Anonymize tool, which redacts, masks, or pseudonymizes the same patterns.

Related tools

Anonymize personal data in text and CSVInspect hidden metadata in a fileRemove hidden metadata from a PDFGenerate a plain-language consent noticeBuild a data retention scheduleGenerate a signed, tamper-evident audit report