PHI Mask

Mask PHI and PII before using ChatGPT.

Paste or upload. Automatically masked.

Add to Chrome

Free 14-day trial. No account required.

  • Pattern matching in your browser
  • We never see or store your files.
Before-and-after illustration of a claim masked before upload to ChatGPT.
Pattern matching in your browserNo generative AI. No files sent to PHI Mask.

Your files never reach us.

Pattern matching finds identifiers and masks them in your browser.

Zero Data Retention. We keep no copy of your files or text, because we never receive them.

PHI Mask is HIPAA-compatible. Your file is masked in your browser and never sent to us, so there is no BAA to sign, and without a signed BAA we cannot claim HIPAA compliance.

Paste

Attach files

Replies

Pattern matching, right in your browser

  • Mask names

  • Mask addresses

  • Mask contact info

  • Mask DOB, SIN, and more

  • 0.9 MB, not 2.8 GB

In their own words

  • “It's very quick, very convenient, and very easy compared to what I used to do before.”

    Dr. Nguyen, LMCCAssociate Physician, Alberta · limited practice licence
    Read transcript

    Hi, my name is Nhi Nguyen, and I'm a medical professional from Vietnam, and I'm currently working as a specialist assistant in Edmonton, Alberta.

    So every day I've been using PHI Mask to redact my patients' confidential information while processing their data.

    It's very quick, very convenient, and very easy compared to what I used to do before.

    I used to have to manually redact all the data of the patients myself, or manually go through the documents and retype everything.

    As you can see, it's a very painful process, and now I have PHI Mask, everything is just way easier.

    So I highly recommend it, and I would use it every day.

0.9 MB
text
0.3 MB
PDF text layer
4.1 MB
OCR images & scanned PDFs, English

Fully works offline in Airplane Mode

Choose a workflow

CMS-1500 claim

Health insurance claim with patient details, procedure codes, and charges.
Open image
  • 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
  • Google AI Mode
  • Microsoft Copilot
  • Perplexity
  • Mistral
  • DeepSeek
  • Grok
  • Poe
  • Kimi
  • Meta AI
  • Lovable
  • Replit
  • Base44
  • AI Fiesta

Try PHI Mask on your next AI chat

Free 14-day trial. No account required.

Add to Chrome