PHI Mask
Ask [name:EC] to call [phone] about the appointment.
PHI Mask for your browser
Use AI without sharing private details. PHI Mask changes names, dates, and identifiers as you paste, on the assistant sites you already open.
- No account needed
- Free for personal use, licensed for client work
- Ready for ChatGPT, Claude, and Gemini
- Mask what you paste, before the site receives it.
- Review every change before anything is sent.
- Attach files with the private details already changed.
- Install once. Nothing else changes.
Works where you paste
These are the sites it runs on today.
- ChatGPT
- Claude
- Gemini
- Google AI Studio
- Microsoft Copilot
- Perplexity
- Mistral
- DeepSeek
- Grok
- Poe
- Kimi
- Meta AI
Paste or upload as usual
Use your usual AI websites. PHI Mask changes private details before you send.
- 1
Paste or upload
Into ChatGPT, Claude, or Gemini.
- 2
Review what changed
See each detail PHI Mask changed.
- 3
Then send
Keep the useful parts of your message or file.
Get PHI Mask for your browser
Add it to the browser you already work in.
- ChromeChrome Web StoreAdd to ChromeSee PHI Mask for Chrome
Review files before they upload
Check what changed, then attach the masked copy.
Replies come back readable
In ChatGPT and Claude, PHI Mask puts your details back into the reply on your screen.
Your private details are not sent to us
We do not receive the text or files you mask.
That is the whole workflow
Add PHI Mask to Chrome. Real private values won't be sent to AI.