Overview
Mask This is a privacy-focused clipboard utility that automatically identifies and hides sensitive information before you paste it. Powered entirely by Apple's on-device Foundation Model, it detects sensitive data patterns in your clipboard content and masks them in real time. Running quietly in the menu bar, it supports both automatic always-on masking and manual triggering, with optional notifications when sensitive info is detected. All processing happens locally on your Mac with zero cloud involvement.
Minimum macOS: 26.0 (Tahoe)
Architecture: Apple Silicon
Key Features
- Automatically detects and masks sensitive information in clipboard content
- Powered by on-device Apple Foundation Model for full privacy
- Menu bar app that runs quietly in the background
- Supports up to 6,144 characters of clipboard content
- Choose between automatic always-on masking or manual triggering
- Optional notifications when sensitive info is detected
- Auto-launch at login option
- Zero cloud processing - all data stays on device
Mask This Alternatives
PastePaw
Privacy-first clipboard history with AI actions and an MCP server
Klipto
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VeloxClip
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Redacto
Local document redaction with on-device AI