Mask This

Mask sensitive info on paste

Only for Mac

Free

Mac

Mask sensitive data in your clipboard using on-device AI. Mask This is a privacy-first clipboard utility that uses on-device AI to detect and mask sensitive information instantly. Key Features: – Smart masking: detects and masks sensitive data in your clipboard. Supports up to 6144 characters input for optimal performance. – Full privacy: powered by on-device Apple Foundation Model. Your data remains strictly local and never leaves your Mac. – Menu Bar resident: designed to work in the background without interrupting your workflow. – Auto & manual modes: choose between automatic always-on masking or trigger it manually only when you need it. – Flexible notifications: get notified when sensitive info is hidden, or disable alerts for a completely silent experience. – Launch at login: automatically start on login, or disable auto-start to launch only when needed. Requires Apple Intelligence. Privacy policy: https://tseylerd.github.io/mask-this/privacy/

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The developer, Dmitrii Tseiler, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    The developer has not yet indicated which accessibility features this app supports. Learn More

    • Seller
      • Dmitrii Tseiler
    • Size
      • Up to 268.6 MB
    • Category
      • Utilities
    • Compatibility
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
      • Mac
        Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Languages
      • English
    • Age Rating
      4+
    • Copyright
      • © 2026 Dmitrii Tseiler