Auto-Redact Sensitive Data on Screen
The ultimate Browser Extension to auto-redact sensitive data on screen during screen sharing and recording. Automatically detects and blurs emails, credit cards, Aadhaar, PAN, bank codes, and more — in real-time, 100% locally.
Why ScreenMask?
Real-Time Auto Detection
No manual blurring. Our contextual regex and validation engine detects PII instantly as it appears, with near-zero latency.
Global & India Patterns
Covers global formats (Credit Cards, SSN, IBAN) and India-specific identifiers (Aadhaar, PAN, GSTIN, UPI, IFSC).
100% Local Processing
Your data never leaves your browser. Every redaction happens client-side — no servers, no logs, no risk.
Custom Rule Builder (Pro)
Define your own keywords or Regex patterns to redact internal IDs, project names, or any proprietary data format.
Manual Blur Mode (Pro)
One click to activate crosshair mode. Hover and click any element — chart, image, table — to instantly blur it.
Zero False Positives
We use the Luhn, Verhoeff, and PAN Entity algorithms to mathematically validate matches before blurring anything.
What We Redact
We go beyond simple pattern matching. ScreenMask uses mathematical algorithms to guarantee accuracy and eliminate false positives.
🌐 Global Patterns
- ✅ Email Addresses
- ✅ Phone Numbers
- ✅ Credit & Debit Cards (Luhn)
- ✅ US Social Security Numbers
- ✅ IP Addresses
- ✅ Dates of Birth (Calendar validated)
🇮🇳 India Specific (Pro)
- ✅ Aadhaar Numbers (Verhoeff)
- ✅ PAN Cards (Entity validated)
- ✅ GSTIN (State & PAN validated)
- ✅ UPI IDs (All 300+ PSPs)
🏦 Banking & Finance (Pro)
- ✅ IFSC Codes
- ✅ SWIFT / BIC Codes
- ✅ IBAN Numbers
- ✅ MICR Codes
- ✅ Account Balances (Contextual)
- ✅ Portfolio P&L (Contextual)
⚙️ Pro Power Tools
- ✅ Custom Keywords — Blur any word or phrase
- ✅ Custom Regex Rules — Blur any pattern you define
- ✅ Manual Element Blur — Click to blur charts, images, tables
- ✅ Alt-Key Reveal — Temporarily reveal while hovering
Trusted by Early Adopters
What our beta users and early testers are saying.
"The custom rule builder is exactly what we needed. We use a proprietary CRM and being able to just type in our ID regex and have it blur instantly during screen shares is a lifesaver."
"I stream trading setups daily. The contextual balance hiding is brilliant. It blurs my account totals but leaves the charts and percentage gains fully visible. Zero false positives so far."
"We tried other redaction tools but they kept blurring random 16-digit order numbers. ScreenMask's Luhn validation actually works. It only blurs real credit cards."
Frequently Asked Questions
Everything you need to know about how ScreenMask protects your privacy.
Does ScreenMask send my screen data to a server?
Absolutely not. 100% of the processing happens locally inside your Chrome browser. We do not use external APIs to process images or text. Your sensitive data never leaves your device, making it fully compliant with strict company privacy policies.
How do you prevent false positives? (Blurring random numbers)
Unlike basic redaction tools that rely on simple Regex (which often blurs random 16-digit order IDs), ScreenMask uses advanced mathematical validation. We use the Luhn algorithm to verify Credit Cards and the Verhoeff algorithm for Indian Aadhaar numbers in real-time, guaranteeing zero false positives.
Which browsers does ScreenMask support?
Currently, ScreenMask is fully supported on Google Chrome and Microsoft Edge. We are actively developing native support for Mozilla Firefox and Apple Safari, which will be released in an upcoming update.
Can I blur custom company data or internal IDs?
Yes! ScreenMask Pro includes a Custom Rule Builder. You can input custom keywords, phrases, or complex Regex patterns specific to your business (like proprietary CRM IDs or project code names), and the extension will automatically redact them.
Who Uses ScreenMask?
From support agents to day traders — anyone who shares their screen benefits.
Explore Use Cases →