IBANs, card numbers (13–19 digits), BIC/SWIFT codes, UK sort codes, US routing numbers in context, and labelled account numbers. Each is replaced with a clear bracketed placeholder.

Does my data get uploaded?

No. All pattern matching happens in your browser. Nothing is sent to a server, logged, or stored.

Why is account-number matching conservative?

Plain runs of digits are everywhere — order IDs, timestamps, quantities. To avoid mangling ordinary numbers, account-number detection requires nearby context like the word "account", which means you should still verify the output.

Can it miss a financial identifier?

Yes. Unusual formats, spaced-out digits, or unlabelled account numbers can slip through. Always read the scrubbed text before pasting it anywhere.

Are masked card numbers safe to share?

A fully masked card number removes the sensitive value, but use judgement — combined with a name or other context, even partial financial detail can be risky. When in doubt, drop it entirely.

Financial Data Scrubber

Financial data scrubber

Pasting a bank statement, support ticket, or transaction log into an AI assistant can quietly expose account numbers, IBANs, and card details. This scrubber finds those financial identifiers and replaces them with masked placeholders — locally in your browser — so you can keep the useful context and drop the sensitive numbers.

How it works

Paste your text and the tool runs a set of patterns for IBANs, card numbers, BIC/SWIFT codes, UK sort codes, US routing numbers (matched in context), and labelled account numbers. Each match becomes a clear token like [IBAN] or [CARD], and you get a count per type. Account-number detection is deliberately conservative — it looks for nearby context — so it doesn’t shred every long number in your text. Nothing is uploaded.

Tips and notes

Verify the output. Conservative matching means an unlabelled account number can slip through; read the result before you trust it.
Everything stays local. The scrubbing happens in your browser, so the original financial data never leaves your machine.
Combine with care. A masked number plus a name and address can still be sensitive together — when unsure, delete the context entirely.
Pair with other scrubbers. Financial text often carries national IDs too; run the SSN / national ID scrubber on the same text.