Exchange CSV converter
Paste or upload an exchange CSV and this tool maps its columns to a standard import format, Date, Type, Asset, Amount, Price, Fee, Currency, then lets you download the cleaned file. It runs entirely in your browser and nothing is uploaded.
A convenience converter and preview, not tax advice. The full import in the app handles more formats.
A convenience converter and preview that runs in your browser, nothing is uploaded. The full import in the app handles more formats and reconciles transfers.
How the converter works
Recognising your columns
Every exchange exports its history with slightly different column names. The converter recognises the common ones, date, type, asset, amount, price and fee, and lines them up under a single consistent header, so you get a tidy file instead of hand-editing columns.
Preview and download
It previews the first rows so you can confirm the mapping looks right, then lets you download the normalised CSV, using a standard set of columns: Date, Type, Asset, Amount, Price, Fee and Currency. The file is ready to import or hand to your accountant.
When you need it
It is handy when an exchange is not directly supported by an import, or when you have an old export to tidy before uploading. For supported exchanges, connecting by read-only API is easier still, and skips CSVs altogether.
Privacy
Your data never leaves your device: the conversion happens in your browser and the file you download is generated locally. When you are ready for a full report, the app handles far more formats and reconciles transfers across accounts for you.
FAQ
It matches common column names used across most exchanges rather than a fixed list, so many exports work. For directly supported exchanges, an API connection is simpler.
No. The conversion runs in your browser and the download is generated locally. Nothing is sent to a server.
A standard set: Date, Type, Asset, Amount, Price, Fee and Currency.