Choose the right
PHI Mask plan

Free supports personal and professional work. The extension includes 10 masks per week after its 14-day unlimited trial. Professional includes unlimited masks.

Billing periodSave 33%

Free

Unlimited for 14 days, then 10 masks each week in the extension.

$0 USD/ month

  • Mask as you paste or upload
  • Text, screenshots, PDFs, and files
  • Professional use included
  • Works offline in your browser

Teams

Set up PHI Mask for your team.

  • Everything in Pro
  • Managed browser policies
  • Pilot support
  • Deployment review

How the Chrome extension works.

  1. Paste or upload as usual

    Use ChatGPT, Claude, or other AI websites.

  2. PHI Mask changes private details

    Names, dates, and identifiers become placeholders before the site receives them.

  3. Review, then send

    See each detail PHI Mask changed before you send.

  4. Replies come back readable

    In ChatGPT and Claude, PHI Mask puts your details back into the reply on your screen.

What each plan covers.

Plan capability comparison
CapabilityFreeProTeams
Works offline in your browser · nothing uploadedIncludedIncludedIncluded
Browser extension · mask as you paste or uploadIncludedIncludedIncluded
Weekly mask limit in the extension10 masksUnlimitedUnlimited
Text, screenshots, PDFs, and filesIncludedIncludedIncluded
Large files and multi-page documentsIncludedIncludedIncluded
Names, dates, addresses, and identifiersIncludedIncludedIncluded
Reversible restore in your browserIncludedIncludedIncluded
Client, patient, and professional workIncludedIncludedIncluded
Set what your team masks · and what they cannot skipNot includedNot includedIncluded
Records showing masking was on, for your reviewsNot includedNot includedOn request
Detector-rule updatesAs releasedWhile subscribedTerm of agreement
14-day free trialNot includedIncludedNot included
SDK for embedding masking in your own productNot includedNot includedOn request
HIPAA-compatible workflowIncludedIncludedIncluded
Named contact for support and feedbackNot includedNot includedIncluded
Zero Data Retention · we never receive your files or textIncludedIncludedIncluded
Data residency · your files and text stay in your browserIncludedIncludedIncluded
Residency, air-gapped, and retention review with your compliance teamNot includedNot includedIncluded

Common questions

Your data

Does PHI Mask store my documents or files?

No. PHI Mask does not receive, store, or log the documents and text you mask. Detection and masking run locally in your browser. See the Data Usage Policy.

Where is my data processed and stored?

Your files and text are processed in your browser, in whatever country you are working in. They are never sent to us and never stored by us. Your known contacts stay in this browser until you delete them.

Does PHI Mask use an LLM or generative AI?

No. Masking uses no LLM and no generative AI. Detection and masking run in your browser, and your text and files are not sent to a model provider by PHI Mask.

How masking works

Does PHI Mask read handwriting?

Only on a best-effort basis, and it misses a lot. Some handwritten entries are masked and others pass through untouched, even when the printed fields around them masked normally. Treat every handwritten entry as unmasked until you have checked it, and select anything still showing to mask it.

Can I get the real values back?

Yes. The masked content is reversible and is mapped back to your real values in your browser.

HIPAA

Is PHI Mask HIPAA compliant?

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.

Do I need a Business Associate Agreement (BAA) with PHI Mask?

A business associate agreement (BAA) covers a vendor that creates, receives, maintains, or transmits protected health information for you. Your file never leaves your browser, so we hold none of it and there is nothing to sign.

Does masking make a document de-identified under HIPAA?

Not by itself. Safe Harbor de-identification requires every one of the eighteen identifier types to be gone, and expert determination is a separate formal route. PHI Mask finds what it can and shows you the result. Your review is still needed. Handwriting is read only on a best-effort basis, so check those fields yourself.

What about the assistant I send the masked copy to?

Sending a masked copy is still a disclosure to whoever receives it. Anything the mask missed travels with the file. Check the terms of the tool you paste into and whether your organization needs its own agreement with that vendor. That is a separate question from PHI Mask.

What if I already pasted patient information into ChatGPT?

Treat it as a disclosure that already happened. Whether it has to be reported is a decision your privacy officer or your organization's process makes, not one a tool can make for you. Write down what was shared and when, delete the conversation if your account allows it, and check whether an agreement with that vendor covers the plan you were signed in to.

GDPR

Is PHI Mask GDPR compliant?

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

Do I need a data processing agreement (DPA) with PHI Mask?

A data processing agreement covers a processor that processes personal data on a controller's instructions. Your file never leaves your browser, so we process none of it and there is nothing to sign. PHIMask.com is a controller for the website and support data described in the Privacy Policy.

Is masked or redacted output anonymous under GDPR?

It depends on your Output setting. Mask leaves a placeholder you can map back to the real value, so that copy is still personal data. Redact removes the value from the exported copy for good, so there is nothing to map back. Neither setting makes the whole copy anonymous. That bar is whether anyone who might reasonably try can still get back to the person, and it turns on what else the copy shows.

PIPEDA, PHIPA, and Law 25

Is PHI Mask PIPEDA compliant?

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

Do I need an agreement with PHI Mask under PIPEDA?

No. PIPEDA asks for a contract when you hand personal information to a third party to process. Your file is masked in your browser and never sent to us, so you hand us none of it and there is no contract to sign. Accountability for that information stays with your organization.

Is PHI Mask PHIPA, HIA, and Quebec Law 25 compliant?

PHI Mask is PHIPA-compatible, HIA-compatible, and Law 25-compatible. Your file is masked in your browser and never sent to us, so there is no agent agreement to sign, and without a signed agent agreement we cannot claim PHIPA or HIA compliance. Nothing of yours is transferred outside Quebec, so there is nothing for Law 25 to assess and no Law 25 compliance to claim.

SOC 2 and ISO 27001

Is PHI Mask SOC 2 and ISO 27001 compliant?

PHI Mask is SOC 2-compatible and ISO 27001-compatible. Your file is masked in your browser and never sent to us, so there is no system of ours for an auditor to examine, and without an audit we cannot claim SOC 2 or ISO 27001 compliance. PHI Mask holds no SOC 2 report and no ISO/IEC 27001 certificate.

Licensing and billing

Is PHI Mask free?

Yes. Free supports personal and professional work, with no account required. The extension starts with a 14-day unlimited trial, then includes 10 masks per week. Professional includes unlimited masks.

Can I use this for client or patient work?

Yes. Free supports personal, professional, clinical and client work. Professional includes unlimited masks. For a team pilot, request access.

Is PHI Mask open source?

No. PHI Mask is commercial software. Free supports personal and professional use; Professional includes unlimited masks. We plan to publish source you can read for personal use once enterprise licensing makes that sustainable.

How does commercial billing work?

Choose monthly billing or pay annually upfront. Both are priced per user. Your Stripe invoice confirms payment but is not the seat assignment by itself, so keep the invoice number in case you need billing help.

How do I get billing help?

Use the request form for activation, seat, cancellation, refund, or invoice questions. Include the Stripe invoice number if you have one. Never send card details, PHI, or original files. use the request form.