I use AI chats a lot when coding and analyzing logs.
A few days ago I almost pasted a real API key into ChatGPT while sharing some logs.
I noticed it just before sending.
But it made me realize something:
It's extremely easy to accidentally leak sensitive data when using AI chats.
So I built a small Chrome extension called PasteSafe.
What it does
When you paste text into AI chats, it scans the content and detects things like:
- API keys
- emails
- phone numbers
- IBAN
- UUID
- URLs
If something sensitive is detected, it automatically masks the values before sending.
Example:
API_KEY → [API_KEY#1]
Works with
- ChatGPT
- Claude
- Gemini
Privacy first
Everything runs locally in the browser.
- no servers
- no tracking
- no data collection
Small update:
The extension just got approved in the Chrome Web Store.
PasteSafe — AI Paste Sanitizer - Chrome Web Store
Protects API keys, emails and sensitive data when pasting into ChatGPT, Claude and Gemini. Detects and masks sensitive data.
chromewebstore.google.com
If anyone wants to try it with real prompts or logs and share feedback, I'd really appreciate it.
GitHub repo:
https://github.com/pastsafe-ext/pastesafe
Curious:
Have you ever accidentally pasted something sensitive into an AI chat?
Top comments (1)
One thing that surprised me while testing this:
emails and IDs appear in pasted logs much more often than API keys.
Curious what others accidentally paste into AI chats.