BlurDataNative Mac app · since 2024
Redact PDFs, scans and screenshots. Nothing uploaded.
BlurData finds the personal data on its own, right on your Mac. Remove it for good, or swap it for labels like [PERSON_1] so the file can go to ChatGPT or Claude.
- Made in Europe
- 100% offline
- 14-day money-back guarantee
![BlurData on Mac: the same kind of page with names and amounts replaced by labels like [PERSON_1] and [AMOUNT_1]](/assets/images/home/pseudonymize-window.webp)
Life Cover with Waiver of Premium
, , Non-smoker
Sum assured: · Term: 25 years
We need a Targeted GP report for .
Presets for the documents you actually have
One click sets the right detectors. A new one for your document, free, usually within 24 hours.
- W-2 & 1099
- Bank statements
- Payslips
- Medical records
- Invoices
- ID card copies
- All presets →
Redact or Pseudonymize
Two modes, depending on what happens next
BlurData marks the personal data on its own, without uploading the file. Then you choose: take it out for good, or give the AI the text without the people.
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1Found on your Mac
Clinic letter · fictional test document
Re: Eleanor Whitfield, born 03/14/1968
14 Orchard Lane, Springfield, IL 62704
Dear Dr. Reeve,
I saw Ms. Whitfield today. Her HbA1c is 6.1%, a little above range. We will recheck in three months.
Results by email to [email protected]
6 items marked on their own. Nothing uploaded.
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2Redact: gone for good
Clinic letter · fictional test document
Re: , born
Dear Dr. ,
I saw Ms. today. Her HbA1c is 6.1%, a little above range. We will recheck in three months.
Results by email to
Taken out of the file: nothing left to copy or search.
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3Pseudonymize: ready for AI
Clinic letter · fictional test document
Re: [PERSON_1], born [DATE_OF_BIRTH_1]
[ADDRESS_1]
Dear Dr. [PERSON_2],
I saw Ms. [PERSON_1] today. Her HbA1c is 6.1%, a little above range. We will recheck in three months.
Results by email to [EMAIL_1]
The AI still reads “HbA1c 6.1%”. It never learns whose it is.
Redact: the data is gone
For documents you send, file or publish. The data you pick is taken out of the file and covered with a bar in the color you choose. Nobody can copy it, search for it or get it back. Redact a PDF →
Pseudonymize: the meaning stays
For documents you want ChatGPT, Claude or a colleague to work on. Every person, address or amount becomes a consistent label on every page, so the text still reads. The key to the real data stays on your Mac. How it works →
The text really disappears. It isn’t just covered.
A black box over text is not redaction. In many files the original text stays underneath, and a simple copy and paste brings it back. That is how names have leaked from court filings and public records. BlurData takes the data out for good: in exported images the covered area becomes part of the pixels, and in PDFs the text is deleted from the file itself. How to black out text in a PDF for real.
The second difference is automatic detection. On a 60-page document, marking everything by hand is where mistakes happen. BlurData finds emails, names, addresses and account numbers on its own, shows you every match, and you decide what goes.
Got an old redacted PDF?
Check for free if the text under the black bars is really gone. The check runs in your browser and the file is not uploaded.
Check a redacted PDFRedaction app for Mac, 100% offline
Auto-redact PDFs and screenshots on Mac, offline
8 types of personal data found on their own, plus your own patterns. PDFs, scans and screenshots in one app, without uploading anything.
Finds 8 types on its own
Emails, names, addresses, IP addresses, URLs, amounts, account numbers and IBAN, license plates. Add your own patterns for internal IDs, case numbers, API keys or ticket numbers.
Drop any file, or a whole folder
Drop a screenshot (JPG, PNG), a scan or a PDF into BlurData. The personal data is found and marked in seconds, no manual selection needed.
100% offline, nothing leaves your Mac
Detection and export run on your Mac. No upload, no account, no internet needed. The file is never sent anywhere to be cleaned.
Export one file or hundreds
Export images and PDFs with the chosen text removed from the file, not hidden under a box. Batch redact entire folders in one pass.
How to redact a PDF in four steps
The same four steps for a PDF, a scan or a screenshot.
- 1Drop the file: a PDF, scan, screenshot or image, several files or a whole folder.
- 2Automatic detection: the personal data is found and marked in seconds.
- 3Check and adjust: switch categories on or off, remove matches, double-click to redact more words, or draw a box over any area.
- 4Export: a PDF or image redacted for good. The content is removed, not covered.
Video tutorial
Watch: how to redact a PDF on Mac in 2 minutes
The whole workflow on a real document: add the PDF, let BlurData find the personal data, fix what you need, export, and check that the redacted text is really gone.
Redact only part of a PDF
You don’t have to black out everything. BlurData proposes what it finds, and you decide what stays readable and what disappears.
A box wherever you want
Draw a box over a signature, a stamp, a table or any area of the page: it is redacted like everything else.
Double-click a word
Double-click a name or a number: it disappears wherever it appears, just for this session or always, in future documents too. For one exact spot, use the box.
Leave out what should stay
Switch off whole categories (amounts, for example) or delete a single match with the trash icon: that part of the PDF stays readable.
New · Pseudonymize · September 2026
Give AI the document, not the people.
Switch from black boxes to consistent labels like [PERSON_1] and [AMOUNT_2]: the same person keeps the same label on every page, so ChatGPT or Claude still follows the text. BlurData finds them on its own, in PDFs, scans and screenshots, without uploading the file.
- 1Send the labeled copy to ChatGPT, Claude or any AI.
- 2Keep the key on your Mac. Only you can map the labels back.
- 3Read the answer back with the real names. 100% offline.
Same person, same label
129 mentions. One label.
In a 27-page test file, BlurData gathered “Eleanor”, “Whitfield” and “ELEANOR WHITFIELD” under one [PERSON_1], so the AI can follow who did what. Merge or split cards with a click. The key to the real names stays on your Mac.
![The Entities window in BlurData: [PERSON_1] Eleanor Whitfield with 129 mentions, [PERSON_2] Thomas Reeve, and two addresses, each with its own label](/assets/images/home/entities-people.webp)
Redact every document with ready-made presets
For the documents people redact most, there are presets with the right patterns for each country. Pick the preset, check, export.
W-2, 1099 and pay stubs
SSN, EIN, bank routing and account numbers, US dates, ZIP codes and phone numbers, plus names and addresses. The broker 1099 preset keeps amounts and securities readable.
Bank and brokerage statements
IBAN, BIC, card numbers, routing and account numbers, transaction references and names. Hide the identities, keep the transactions visible.
Medical records
Patient names, dates of birth, MRN, SSN, addresses, emails and phones in US records; NHS numbers and postcodes in UK records. Lab values stay readable.
Invoices
Invoice numbers, VAT IDs, IBAN, BIC, addresses and contacts. Amounts stay visible, and one click hides them too.
European documents
Presets for German, Italian, Spanish, French, Belgian and Swiss documents: payslips, invoices, ID cards, court orders and more.
Your own preset
Another document? Describe it once and we write the preset for you, free, usually within 24 hours. Request a preset
Who BlurData is for
Law firms and legal
Redact filings, exhibits and briefs, for good in the exported file, without sending documents through an outside service.
Clinics and healthcare
De-identify patient records and reports. Since nothing is uploaded, health data stays on your device.
Support and dev teams
Bug reports, logs and dashboards: redact emails and tokens in screenshots before they land in Slack, Jira or a public changelog.
Also on iPhone & iPad
Redact on the go with BlurData for iOS
Redact PDFs, screenshots and photos right on your iPhone or iPad, then share the clean copy. Same automatic detection, same on-device processing: nothing ever leaves your phone.
Pick your plan
Hours of manual redaction, for less than $7 a month.
A native Mac app since 2024. Custom presets for your documents, usually within 24 hours. 100% offline. Updated weekly.
Most popular
Personal
1 Mac. Cancel anytime.
that’s about $6.60 a month
- All features below
- Always on the latest version
- Email support, custom presets in 24h
- Cancel any time from your portal
via Lemon Squeezy
For teams
Team
5 Macs. One license for the whole office.
about $3.30 per Mac a month
- Everything in Personal
- 5 Macs, one license key
- VAT invoice for your company
- Priority support
via Lemon Squeezy
Best value
Personal
1 Mac. One-time payment, yours forever.
- One-time payment, no recurring
- 1 year of updates included
- The app keeps working forever
- Email support, custom presets in 24h
via Gumroad
For teams
Team
5 Macs. One-time payment for the whole office.
- Everything in Personal
- 5 Macs, one license key
- 1 year of updates included
- VAT invoice · Priority support
via Lemon Squeezy
Try it for 14 days. There’s no free trial: every plan comes with a 14-day money-back guarantee instead. Use BlurData on your own documents, and if it doesn’t fit them, write to us within 14 days of purchase for a full refund.
Made in Europe. Your documents never leave your Mac.
Already a customer? Manage your purchase → · Need more seats? Email us
Prices in US dollars (USD).
All plans include
- Text recognition (OCR) in many languages
- Batch folder redaction
- 100% offline processing
- App in English, German, Spanish, Italian, French
- Email support
- Custom preset in 24h, free
Reads English, Italian, German, French, Spanish, Portuguese, Russian, Ukrainian, Chinese (Simplified and Traditional), Japanese, Korean, Vietnamese, Thai and Arabic, and detects the language on its own.
Detection in 3 layers
1. Built-in (always on): Emails · Names & Surnames · Amounts · Account Numbers & IBAN · Addresses · License Plates · IP Addresses · URLs
2. Community presets: US W-2 (SSN, EIN, routing), German payslip (Steuer-ID, Rentenvers., Krankenvers.), Italian busta paga (Codice Fiscale), invoices, bank statements, common surnames, and new ones every week. Browse the open-source library →
3. Your own: unlimited custom patterns for internal IDs, ticket numbers, anything specific to your work. Or request a custom preset and we write it for you within 24h, free.
