Cloakpaste by Dhiva Labs

Cloakpaste keeps private data out of AI chats.

Paste a stack trace, an email thread or a config file into an AI chat, and Cloakpaste swaps the sensitive parts for placeholders before the text lands in the message box:

Hi Priya Raman, reach me at arjun@northwind.dev
becomes
Hi [PERSON_1], reach me at [EMAIL_1]

When the AI replies with a placeholder, hover it to see the original, or copy the reply to get the real values back on your clipboard.

WHAT IT HIDES
• API keys and access tokens in the formats used by major cloud, developer, payment and AI services
• Passwords and secrets in config files and connection strings
• Private keys
• Card numbers and IBANs, checked with checksums
• Indian Aadhaar and PAN numbers, and US Social Security numbers
• Email addresses, phone numbers, IP and MAC addresses
• People's names, places and street addresses, found by a small on-device model
• Your own words: client names, project codenames

PRIVATE BY DESIGN
• Everything runs in your browser. The detection model ships with the extension, and no network requests are made.
• No account, no server, no analytics, no tracking.
• Placeholder mappings are kept in memory only and cleared when you close the browser.
• Originals are shown in the extension's own tooltip, so the chat site's scripts never see them.

IN YOUR CONTROL
• "Paste original" undoes any redaction.
• Switch each kind of data on or off, or switch off individual sites.
• Try anything in the built-in playground.

WHERE IT WORKS
Popular AI chat sites such as ChatGPT, Claude and Gemini are protected out of the box; the full list is on the settings page. To cover any other site, such as a self-hosted chat UI, open it and choose "Protect this site".

Only pasted text is checked. Text you type yourself and files you upload are not. The extension reduces accidental leaks; no detector catches everything.

ChatGPT, Claude and Gemini are trademarks of their respective owners. Cloakpaste is not affiliated with or endorsed by them.

Source code: https://github.com/Dhiva-Labs/Cloakpaste