Try Restore and Mask this
See the whole 1.2.0 flow in your browser: paste something sensitive, mask it, let a pretend AI reply, and watch your original values come back on your screen only.
This page is a local simulation. Nothing is uploaded or stored. It runs the same detectors and the same placeholder list code as the extension, in this page's memory. Reload and it is all gone.
- 1Mask
Paste text. Paste Guard swaps each sensitive value for a placeholder.
- 2Send
The AI receives only the placeholders. That is all it ever sees.
- 3Restore
When the reply uses a placeholder, your screen shows your value again.
Your message box
Personal dictionary
Empty. Select a word in the box above and press Mask this.
The free limit is 10 words. Pro unlocks unlimited words (Pro is not available yet).
The chat
Messages appear here. Paste the example, choose Paste masked, press Send, then ask the fake AI to reply.
In your own message, the value shows again once it is in the chat, because it is ordinary text on the page. The AI still received only the placeholder. In the real extension the message box always keeps the placeholders. Restored values are underlined here so you can see them; the extension does not underline them.
Where your data lives
Restore and the dictionary add a little stored data. Here is all of it.
| What | Where | How long | Sent anywhere? |
|---|---|---|---|
| Placeholder and original value list (Restore) | Browser memory only (extension session storage), per site | Up to 4 hours, 500 entries, cleared when the browser closes or you press Forget | No |
| Personal dictionary words | Your device, extension local storage, plain text | Until you remove them | No |
| Ignored values | Your device, as salted one-way hashes | Until you clear them | No |
| Settings and the protected-paste count | Your device | Until you uninstall | No |
| Original sensitive values anywhere else | Never written to disk, page attributes, URLs or the console | n/a | No |
Keyboard shortcuts
| Keys | What it does |
|---|---|
| Alt+R | Switch replies between original values and placeholders |
| Alt+Shift+M | Mask the selected words in the message box and add them to your dictionary |
| Enter / Esc | In the warning: paste masked / cancel |
On a Mac, Alt is the Option key. In the extension these shortcuts work on the supported AI sites. All features · Verify it yourself