Free online CSV to OFX converter

Source format: CSV

CSV (Comma-Separated Values) is a plain-text format for tabular data. It stores rows and columns in a simple, compact way and is widely used by spreadsheets, banks, accounting tools, and financial apps. In bank exports, CSV files often contain transaction data such as date, description, amount, balance, and account details.

CSV is easy to open and edit, but it has no standard financial structure. The meaning of each column depends on the system that created the file, so a CSV export from one bank may look very different from another.

Target format: OFX

OFX (Open Financial Exchange) is a structured financial data format used for importing transactions into personal finance software, accounting tools, and some banking applications. It is commonly supported by programs such as Quicken, Microsoft Money, GnuCash, and other finance managers.

Compared with CSV, OFX includes a formal structure for accounts, transactions, dates, amounts, and identifiers. That makes it better suited for bank statement imports, transaction reconciliation, and bookkeeping in software that expects standardized financial records.

How to convert CSV to OFX

The right method depends on how clean your CSV file is and what your finance software expects. In many cases, you need to map CSV columns to OFX fields such as date, payee or description, amount, balance, and account information.

Option 1: Use the built-in converter on 101convert.com

1. Open the CSV file in the browser-based converter on 101convert.com.
2. Select CSV as the source format and OFX as the target format.
3. Start the conversion and download the generated .ofx file.

This is a convenient way to convert the file for free without installing software.

Option 2: Use spreadsheet software to clean the data first

1. Open the CSV in LibreOffice Calc, Microsoft Excel, or another spreadsheet program.
2. Check that the columns are separated correctly and that dates and amounts use consistent formatting.
3. Fix any missing values, extra separators, or regional number-format issues.
4. Save the cleaned CSV, then import it into a tool that can export OFX.

Option 3: Use desktop finance or conversion software

1. Launch software that supports CSV-to-OFX mapping.
2. Load the CSV file.
3. Assign each CSV column to the appropriate OFX transaction field.
4. Choose the account type and output settings.
5. Export the file as .ofx.

If your CSV is simple and well structured, conversion is usually straightforward. If it contains extra columns, merged text, or inconsistent date formats, clean it first before converting.

Important compatibility notes

CSV to OFX conversion is not always one-to-one. CSV is flexible, but OFX expects financial structure. A converter may need to infer or map fields such as transaction date, amount sign, currency, and account information. If the CSV does not contain enough detail, the resulting OFX file may be incomplete or rejected by import software.

Pay special attention to date format, decimal separators, and currency. Different regions use different conventions, and incorrect formatting can cause import errors or wrong transaction values. Some OFX importers also expect unique transaction IDs or specific account metadata, which may not exist in the original CSV.

For best results, make sure the CSV contains one row per transaction and clear columns for the essential fields. Clean the data first if needed, then convert it to OFX. When the source data is well prepared, the resulting file is much more likely to import correctly into personal finance software.

About OFX and QFX

OFX and QFX are related but not identical. QFX is Intuit’s branded variant used by Quicken, while OFX is the broader exchange format. Some software can read both, but support varies. If your target app specifically requires OFX, make sure the exported file uses the correct format and extension.