Private beta
Add PasteGuard to your browser
Mask names, emails, and secrets right inside ChatGPT, Claude, and Gemini — before they ever reach the AI.
Masked locally — nothing leaves your browser
Firefox
Available nowSigned add-on · v0.1.2 · Firefox 140+
Add to FirefoxOpens Firefox's install prompt
Chrome
Available nowFrom the Web Store · Edge, Brave & Arc too
Add to ChromeOpens the Chrome Web Store
Trouble installing? Email us or open a discussion.