MaskPaste: Redact Before AI
Hide PII before ChatGPT paste
Only for Mac
$1.99
Mac
Before you paste into AI, mask what matters. Hide names, addresses, and secrets locally in a tap — then restore them anytime. Your data stays with you.
Hide the secrets before AI sees them.
Ever hesitated before pasting text into ChatGPT, Claude, or Gemini — "should this name or company really go in there?"
MaskPaste is a macOS app that lets you mask just the sensitive parts before you paste, then restore the original wording with one click after you get the AI's answer.
■ Features
- Select any text range and set a replacement (e.g. John Smith → Person A)
- Replace every occurrence at once
- Copy the masked text with one click
- Paste the AI's answer back and restore the original words from your saved mapping
- Review, edit, and delete replacement rules
■ Private by design
- Everything runs on your device. Your text and rules are never sent to any server
- No account, no internet connection required
- One-time purchase. No subscription, no in-app purchases
■ Use it for
- Hiding names and company info before asking AI to polish an email
- Hiding client and project names before summarizing meeting notes
- Hiding personal details before consulting AI on contracts or resumes
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
・General improvements and stability enhancements
・Refreshed the About screen
The developer, SHO ISHIKAWA, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- SHO ISHIKAWA
- Size
- 3.8 MB
- Category
- Business
- Compatibility
Requires macOS 10.13 or later.
- Mac
Requires macOS 10.13 or later.
- Mac
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2026 nuintee.
