Dates
Find mixed or unrecognized formats before QuickBooks rejects them.
FREE QUICKBOOKS CSV ERROR CHECKER
Find the row breaking your bank CSV.
Check dates, amounts, duplicate transactions and broken rows locally before another QuickBooks import attempt.
No uploadNo loginNo bank connection
01Choose a copied CSV
02See the exact failures
03Repair with the offline pack
FREE · FIRST 250 TRANSACTIONS · LOCAL PROCESSING
Diagnose the file in this browser.
Nothing in the selected CSV is sent to us. Start with the built-in example or choose a copied, redacted export.
01
Your diagnostic appears here.
Use the example or a redacted copy. Nothing is sent to a server.
ONE ENGINE, THREE ENTRY POINTS
Start with the file you actually have.
Each free tool uses the same private local scanner, with source-specific mapping, examples and guidance.
01
Bank CSV to QuickBooks converter and preflight checker
Check and normalize a copied bank CSV into a review-ready QuickBooks three-column format without uploading the file.
Open free tool →02Stripe to QuickBooks CSV converter and error checker
Map a Stripe balance-transactions CSV to a clean Date, Description and Net Amount preview for QuickBooks, locally in your browser.
Open free tool →03QuickBooks CSV duplicate transaction checker
Find exact duplicate date, description and amount rows in a bank CSV before a QuickBooks import, without uploading the file.
Open free tool →DETERMINISTIC CHECKS, PLAIN ENGLISH
Fix the boring failure points first.
Amounts
Normalize currency symbols, commas, signs and separate debit/credit columns.
Duplicates
Flag exact duplicate transactions before they enter your books twice.
Structure
Detect broken rows, missing descriptions and inconsistent column counts.
QUICKBOOKS CSV REPAIR GUIDES
Start with the error you actually see.
Each guide explains one import problem, the likely causes and the shortest safe repair sequence.
01
QuickBooks CSV import failed? Check these six causes first
Diagnose the common date, amount, mapping, duplicate and row-structure problems that can stop a bank CSV import in QuickBooks.
Open guide →02Fix “Some info may be missing from your file” in QuickBooks
A practical checklist for the QuickBooks CSV message that says information may be missing from your bank file.
Open guide →03QuickBooks CSV date format: MM/DD, DD/MM or YYYY/MM?
Identify mixed or invalid transaction dates before importing a bank CSV into QuickBooks.
Open guide →04Convert a bank CSV to the QuickBooks three-column format
Prepare Date, Description and signed Amount columns for a manual QuickBooks bank-transaction import.
Open guide →05QuickBooks debit and credit CSV format explained
Build and validate the four-column Date, Description, Credit and Debit bank CSV format used by QuickBooks.
Open guide →PLAIN ANSWERS
Before you choose a file.
Does my file leave my computer?
No. The diagnostic runs in your browser. The site does not upload, store or transmit the CSV.
What is free?
The browser checker diagnoses up to 250 transaction rows and shows a normalized preview. The paid offline pack unlocks the repaired CSV export and unlimited local use.
Is this accounting advice?
No. It checks file structure and formatting. You remain responsible for account selection, transaction meaning and the final import.
What formats are supported?
CSV files using comma, semicolon or tab delimiters, with either one signed Amount column or separate Debit and Credit columns.
Does it connect to QuickBooks?
No. There is no login, API connection or access to your QuickBooks account.
ONE-TIME OFFLINE TOOL
Stop rebuilding the same CSV by hand.
Diagnose free. Buy only if the repaired export saves you real time.
Get CSV Preflight Local · $29 CAD