G GREENWICK · TRADER TOOLS
Free · private · local

Give your trading CSV a quick preflight.

Check the file for common journal-import trouble before you spend time mapping columns: repeated order IDs, IDs changed to scientific notation, fee-only rows, missing fields, blank lines and timestamp details that need a closer look.

Your file stays in this browser. It is not uploaded.

Choose a broker CSV

Use a downloaded .csv activity, order or execution export.

For privacy, use a copy with your name, account number and other personal details removed.

Want a manual starting point?

Use the free Excel / Google Sheets journal to log completed trades by hand. It does not import broker files.

Get the free journal →