SafeMask - Local PII & Secrets Anonymizer

SafeMask — Share text, not secrets. On‑device. Fast. Reversible.Use AI without leaks: anonymize before you share, restore when allowed.

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SafeMask — Local PII & Secrets Anonymizer for the Chrome Built‑in AI Challenge 2025

Why SafeMask

Every day, sensitive snippets leave companies before anyone notices: names in a support ticket, IBANs in a sales email, API keys pasted into a chat box, or legal drafts shared with AI tools. In highly regulated industries (finance, healthcare, public sector), many organizations restrict or even block GenAI usage on corporate devices to prevent data leakage.

SafeMask solves this, locally. It anonymizes your text on the device, before you share it and lets you de‑anonymize later when you need to. No servers. No logs. No network dependency.

What SafeMask does (in one line)

Paste. Anonymize. Share. Copy back. De‑anonymize when needed, all locally.

Key Benefits

  • Privacy by design: 100% on‑device processing. Your content never leaves the browser.
  • Business‑ready: Reduce data‑leak risk without blocking productivity; works on any website, editor, or form field.
  • Reversible when allowed: Deterministic tokens like EMAIL_8A1B2C enable safe collaboration and accurate traceability.
  • International: Detects PII and secrets across regions (emails, phones, addresses, IBAN/BIC, VAT, credit cards, API keys, tokens, business IDs…).
  • Ultra‑fast UX: A floating button, 3 clicks, and you’re done. Diff view makes changes obvious and trustworthy.

How it feels to use

1) Click the SafeMask button (bottom‑right) → paste your text into “Original”.

2) Press “Anonymize” → SafeMask highlights and replaces sensitive items per policy (Ignore, Pseudo, Redact).

3) Copy and share safely.

4) Need the original? Paste the anonymized text into “Anonymized”, click “De‑anonymize”.

Who SafeMask is for

  • Legal teams anonymizing drafts, contracts, and case notes.
  • Sales/Support anonymizing transcripts and CRM updates.
  • Developers/DevOps removing secrets from logs, issue tickets, and bug reports.
  • Any enterprise aiming to enable GenAI adoption without compromising data protection.

Try it in 30 seconds :

1) Open Chrome → chrome://extensions → Developer mode.

2) “Load unpacked” → select the safemask folder.

3) Visit any page → click the SafeMask button (bottom‑right) → paste text → Anonymize.

Why now

AI is moving from the cloud to the client. With Chrome’s Built‑in AI, enterprises can finally combine productivity and privacy. SafeMask gives teams a safe, familiar way to work with text on any site without sending sensitive data anywhere.

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