mask., pseudonymization for documents you work on with AI
mask. replaces the names in a document with labels before it goes to an AI tool, and puts the real names back when the answer comes in. It runs in your browser, the page is not allowed to connect anywhere, and your documents and dictionaries stay in a folder on your computer, encrypted with your password.
Which documents would you mask, and what would you do with the AI?
Every name in the company dictionary, in every spelling you give it
Email addresses, phone numbers, ID numbers, dates of birth, street addresses, lot and serial numbers and UDI
Names after a title or a role, such as Dr. or Prepared by, and names in Excel columns headed Patient name or Employee
Logos, photos and screenshots, which become numbered gray boxes
Headers and footers, comments and their authors, tracked changes, file properties, file names, sheet names, formulas and charts
In Word, Excel, PowerPoint, PDF and text files, and in text pasted from an AI chat, in Chrome or Edge on Windows or Mac
License
Your role
Number of users
a year
Thank you. I will be in touch.
I am looking for quality and regulatory professionals who will use mask. in their real work for 30 days. If your application is accepted, you receive a 30-day personal license and the user guide, and about three weeks later a short questionnaire on this site. If you want to continue after the beta, the first year is at a beta price.
The company license comes with the validation package of each release: the software description and intended use, requirements, risk assessment, verification protocol and report, traceability matrix, known limitations, release notes and a security and privacy statement. Three company forms in Word (intended use and risk-based assurance record, acceptance checklist, approval and release for use) help you record your own decision. When a new release comes out, its documents are on your documents page and you receive one email about it.
Company (optional)
terms of sale
I agree to complete the beta feedback questionnaires and accept the
Apply for the beta
Choose this license
Validation documents for your quality system
{price} for each additional user
Thank you. Your order number is {ref}. I will send you the payment details by email, and your license follows once the payment arrives.
Your name
mask. license terms
What mask. hides
Apply for the beta
The beta is closed at the moment.
For a quality or regulatory team that uses mask. within its quality management system.
Something went wrong. Please try again, or write to me through the contact page.
Order mask.
Two licenses
mask. pseudonymizes, it does not anonymize: the mapping that puts the names back stays encrypted in your folder, so masked copies may still count as personal data. A name written plainly in a sentence stays visible until it is in the dictionary, which is why you look at each file before it goes out. The known limitations of each release are listed in its validation documents.
An application with this email address has already been received. I will be in touch.
I agree to receive one email with the beta pricing before the beta period ends.
Named users, each on their own computer
Company dictionaries shared between the users
The validation package of every release (MASK-VAL-00 to MASK-VAL-08)
Three company forms for your validation decision, acceptance and approval for use
One email when a new release comes out, with its documents
The user guide and every update released during the year
{name}, your beta price for the first year applies to this order until {date}.
Send the order
For one named person, such as a consultant or a quality manager, on the computers they work on.
Company
I will send you the payment details by email, and your license email follows once the payment arrives. An order can be cancelled until the license key is sent.
Country
mask. for one named person, for a year
As many documents as you need, of every kind mask. reads
The user guide
Every update released during the year
A reminder by email before the license ends
I accept the
and the
.
Please accept the license terms and the terms of sale.
Personal
Up to {n} users
Thank you. Your answers have arrived, and I read every one of them.
Something went wrong. Please try again in a minute.
Thank you, {name}, for taking part in the beta. The questions take about five minutes. Please answer in your own words, and leave out real names and confidential details.
Your feedback on mask.
Send my answers
Your answers have already arrived. Thank you.
This link is not valid. Please use the link in your email, or write to me through the contact page.
Your answers are saved with your beta application and are used to improve mask. They are quoted only if you allowed it in the last question.
In a 30-minute call, you tell me where you stand, and I tell you what I'd do first and whether I'm the right fit.
Let's talk about your device
Use AI tools on the real documents of the companies you work with, without the confidential names and personal data leaving your computer
Coverage of the places that are easy to miss: headers and footers, comments, tracked changes, document properties and file names
AI output that comes back with the original names in place, ready to use, without manual find-and-replace
A separate dictionary for each company, so each company's names are kept apart
Works with any AI tool, since what you share is an ordinary masked copy of the file
Installs as an app in Chrome or Edge and works without an internet connection once opened
mask. replaces company, product, supplier and personal names and other identifiers in Word, Excel, PowerPoint and PDF files with consistent labels before the files are shared with an AI tool, and restores the original names in the output. Processing takes place locally in the browser, and no document content leaves the computer.
A limited beta is now open to quality and regulatory consultants.
A 30-day license and the user guide
Updates released during the beta period
Two short feedback questionnaires: after two weeks and at the end of the beta
No purchase obligation at the end of the beta
Participants who continue receive the first year at a beta price
The beta price is offered to participants who complete the first questionnaire
mask. performs pseudonymization, not anonymization: the mapping is retained locally to allow restoration, so masked copies may still constitute personal data. A name that appears in free text without identifying context is masked once it is added to the dictionary; every masked file should therefore be reviewed before it is shared.
Quality and regulatory consultants working on the documents of several companies
Quality and regulatory managers who use AI tools with procedures, reports, complaint records and other controlled documents
I have no access to mask. on your computer, to your documents, to your dictionaries or to your folder. You are the only one who does.
mask. sends nothing back: no documents, no names and no usage data. Nobody sees or counts what you do with it.
Browser policy blocks the page from making any network connection, and the data-sent counter remains at zero.
Dictionaries and job mappings are encrypted with your password. I hold no copy of the password or of the recovery key.
The license is checked on your computer, without connecting anywhere.
mask. does not use AI. Masking is based on your dictionaries and on defined patterns.
Each company has its own dictionary of names: the company, its products, suppliers and personnel, including spelling variants. Email addresses, phone numbers, identification numbers, dates of birth, addresses, lot and serial numbers and UDI are detected by pattern.
mask. produces a masked copy of each file, covering body text, headers and footers, comments, tracked changes and document properties. The user reviews the masked copy before it is shared with the AI tool.
The AI output, as a file or as pasted text, is restored with the original names. Source files are never modified.
mask.: pseudonymization of documents before they reach an AI tool
What mask. gives you
Submit your details and I will be in touch.
Beta terms
How it works
Intended users
The cover
What mask. creates in your folder, and what happens if you delete something
Masking files: hiding anything still visible before the file goes to an AI tool
Every participant receives the full user guide (MASK-UG, 28 pages): installation, the workspace on your computer, the company dictionary, masking, restoring, folder jobs and validation in your company.
Only you have access
From the user guide
Company dictionary
Masking and review
Restoration