On-device redaction

Blackout the page.Not your evening.

Blotmarked finds names, addresses, ID numbers and bank details in a payslip, bank statement or letter, and blacks them out for good. It will not catch everything - nothing does - so it shows you what it found and leaves the last word to you. All of it on your own device: the file you choose opens in your browser and never reaches a server of ours.

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17 of 20 test places left. Two weeks. No card needed.
Why blotmarked

Everyone asks for the same dozen pages - and none of them need all of it.

A landlord, a bank opening an account, an insurer, a new employer, an immigration or benefits office - each one asks for payslips, bank statements, an ID copy. Each time, you sit down and black out account numbers, employer details, signatures, everything on the page nobody asked to see, across dozens of pages, over and over.

Blotmarked does that redacting in seconds, in a browser tab, without the document ever leaving your device.

Open the payslip or bank statement, let it scan for personal data, confirm what it found, tap anything it missed. Every redaction is undoable until you save, and permanent afterwards - and you check every page before it is final.

On your device

There is no upload to secure, because there is no upload.

The work happens where the file already is

Choosing a document opens it in your browser. Finding the personal data, showing it to you and blacking it out all run on the device you opened it on, phone or laptop alike.

Nothing to breach, nothing to hand over

We cannot lose a document we never received, and there is nothing of yours for anybody to ask us for. No copy sits on a server of ours, because none was ever sent to one.

No one else reads it either

Reading the words out of a photograph happens on your device too. No part of your payslip passes through another company on its way to being redacted.

Check it yourself

Do not take our word for any of it.

Each of these takes about a minute, and none of them needs us.

  1. 01
    Turn the network off first

    Turn the wifi off - flight mode on a phone - then redact a document. It still works. Something that had to send your file away could not do that.

  2. 02
    Watch what leaves

    Open your browser network panel before you start, and keep it open. Your document is not in any of it.

  3. 03
    Search what you saved

    Open the finished file and search it for something you blacked out. It is not there. The text was removed, not covered over.

What that costs

Keeping it on your device has a price. Here it is, before you start.

These are the trade-offs of the design, not problems waiting to be fixed. We would rather you knew them now than found them later.

  • Your device does the work, so a long document - or a photograph that has to be read letter by letter - takes longer on an old phone than it would on a server somewhere else.
  • Nothing is kept. Close the tab and the document is gone from here: no history, no list to come back to, nothing waiting on another device.
  • Your credit code is the whole account. There is no sign-in to recover, so if you lose the code we cannot give the balance back - we have no way of knowing it was yours.
  • We cannot look at your document to help you, because we never had it. If a particular page goes wrong, we can only go on what you are able to tell us about it.
  • Detection is a first pass, not a verdict. On a photograph it is reading pixels and guessing, and it will miss things - which is why you look over every page before you save.
How it works

Four steps, one afternoon saved

01
Open a document
A payslip, bank statement, ID - PDF or photo, straight from your device.
02
Scan for personal data
A first pass over the page for names, IDs and bank details, made entirely on your own device.
03
Review, tap, box, erase
Confirm every finding, or mark anything yourself. Every step can be undone.
04
Check, then export
A last look at every page, then a file with the text removed rather than covered, and a certificate of what went.

Stop redacting the same pages by hand.

Start Blotmarked
17 of 20 test places left. Two weeks. No card needed.