“We have re-sent the statement”
Your bank sends a corrected file and says nothing more useful than that. Somewhere in a few hundred entries, something changed. Opening the two files side by side in a text editor does not help: the bank re-issues its own references on a re-send, so a plain text diff lights up on every single line.
This compares the two files as statements, not as text. It tells you which transactions are in one and not the other, and how the balances moved.
Nothing is uploaded. This page is JavaScript running on your machine. Load it, disconnect from the internet, and it still works — which is the only honest way to hand a tool a live bank statement.
How transactions are matched
Entries are matched on value date, signed amount (in whole cents), counterparty IBAN and name, end-to-end reference, and the purpose text. The bank's own reference is deliberately excluded — it changes on a re-send, and matching on it would report that every entry in the file is both added and removed.
Repeats are counted, not collapsed
The comparison counts occurrences rather than treating each file as a set of unique entries. If a €5 fee appears twice in the first file and three times in the second, that is reported as exactly one addition — not three, and not zero. Getting this wrong is the standard way a diff tool quietly misleads you about a statement full of identical small charges.
Balances are compared separately
Transactions and balances can disagree, and when they do it is worth knowing. Each account's first opening balance and last closing balance are compared across the two files, however many pages the statement arrived in. Two files with identical transactions but different closing balances is a meaningful and alarming result, and it is shown as one.
When this is the right tool
- A bank re-sent a statement and you need to know what actually changed before re-importing
- Two exports of overlapping date ranges and you want the difference, not the union
- Before and after a correction — confirm the bank changed only what it said it changed
- Two systems disagree about what a day contained, and each produced a statement file
How to compare two files
Add the original
Drop the first file into the left box — usually the copy you already imported.
Add the new one
Drop the re-sent or corrected file into the right box.
Compare
You get a verdict, a side-by-side summary, the balance comparison, and the two lists of entries that appear in only one file.