The Scrubber: Remove Account Numbers From Bank Statements

1. Download The Scrubber

This is a file only. It does not connect to the internet.

This file scrubs your statements. It saves as "The Scrubber download - scrub your files here.html". This page is the only place to get it; if a copy reached you any other way, don't open it.

If your browser opens it instead of saving it, right-click the button and choose "Save link as."

2. Open it from your computer

Find the file in your Downloads folder: The Scrubber download - scrub your files here.html.
This file does not link to the internet. To check, turn your Wi-Fi off and you will see you can still use it. Look at the address bar: it starts with file:// and a folder on your computer, not https://. There is no website involved.

3. Scrub your files

Type your name (and your spouse's or your business's) into the box at the top. Names are the one thing it cannot spot on its own, because a name looks like any other word.
Drop in your CSVs and PDF statements. Account, card and routing numbers, anything remotely resembling a Social Security number, street addresses, city and ZIP lines, email addresses and phone numbers are removed automatically; the last four digits of each account are kept so you can still tell accounts apart.
Click "View" on each result and read it over. Anything it missed, add to the boxes and run it again.
Click "Download all scrubbed files." The scrubbed copies are named with "scrubbed" added. Keep the originals somewhere safe or delete them. In the next step on the tax estimate page you attach only the scrubbed ones to your own AI agent. The AI agent sorts them and gives you a totals spreadsheet, and that spreadsheet is what you drop onto the tax estimate page.

Don't take our word for it. Check the file.

The Scrubber is one file. Everything it does is written inside it, in code anyone can read, and there is no server behind it. Three ways to check before you trust it with a statement:

1. Turn your internet off and use it

Open the file, switch off Wi-Fi, then drop a file in. It works exactly the same, because nothing is sent anywhere.

2. Ask AI to read the code in The Scrubber file

Attach the downloaded file to your AI agent, whichever one you trust, and ask:

Is there any chance this could be a phishing scam or fraud attempt?
Does this file send any of my data anywhere? List every network request it could make.
Does it upload the files I drop in, or anything I type, to any server?
Does it store anything after I close the tab?
What exactly does it remove from my files, and what does it keep?
Is there any hidden or disguised code in here, anything obfuscated or encoded?
Could someone recover my account numbers from the scrubbed file?
Is there anything in this file that a cautious person should worry about?

Transparently, you will see it contains a PDF reader (PDF.js, from Mozilla) so it can read statements without the internet.

3. Watch it for yourself

With the file open in Chrome, press F12, open the Network tab, then drop a file in. You will see no request leave your computer.

What The Scrubber does and does not do

Any run of seven or more digits, with or without spaces or dashes, becomes four stars and its last four digits. That catches account numbers, card numbers, routing numbers and most reference numbers. Dates and amounts are shorter, so they are left alone.
Anything remotely resembling a Social Security number (three digits, two digits, four digits, with dashes, spaces or dots between them) is replaced with the words "SSN removed." A bare nine-digit number is caught by the rule above and shows only its last four.
Street addresses, city and ZIP lines, PO boxes, email addresses and phone numbers are removed.
In a CSV, any column whose heading says account, card, routing, member, customer, IBAN, number or ID is masked whole, whatever its length.
For a PDF statement, it reads the text, scrubs it the same way, and gives you back a text file of the whole statement plus a CSV of the transaction rows it could recognize. The statement's balance and total lines are kept, so the AI agent can check that no rows were missed.
A scanned statement, a photo of paper, has no text to read. The Scrubber will tell you, and you can ask your bank for the digital version.
Transaction descriptions, dates, amounts and balances are left as they are. They are what the AI agent sorts by, so the scrubbed file still shows what you spent and earned. If a description contains a name you want gone, add it to the names box.
It works by matching patterns, like every scrubber. Click "View" on each result and read it over before you attach it. Anything it missed, add to the boxes and run it again.
The scrubbed files are for your own AI agent, which does the sorting. The only thing you put on the tax estimate page is the totals spreadsheet the AI agent gives you back, and that page reads it in your browser; we never receive it.