Mask only what you choose
Replace sensitive details like names, company names, or addresses with natural aliases, all on your device.
Paste into AI as-is
Review the masked text on screen, then copy it directly into your prompt without extra cleanup.
Restore the original wording later
Once text has been masked, you can use your saved rules to restore the original wording at any time.
Why MaskPaste
Don't send it out. Don't leave it behind.
Your text and replacement rules stay on your device instead of being uploaded to any external server. Mask sensitive details locally and reduce exposure before anything reaches an AI service.