Donor CSV export checker
Drop in a donor or gift CSV exported from any CRM and this free checker counts records, totals gifts, flags likely duplicates and missing emails or names, and compares a before and after export to confirm a migration moved everything. It runs entirely in your browser, so your donor file is never uploaded anywhere.
Your file never leaves your computer — everything runs in this page.
Upload the export from your old system and the export from your new one. We compare record counts, gift totals and which emails went missing.
Confirm columns
Email and gift amount columns in each file.
Confirm columns
We guessed which columns hold each field. Adjust if needed.
Counts & totals
Rows, columns, gift sum, rows with amounts, unreadable amounts.
Duplicates
Same email (case-insensitive) or same first + last name + street + ZIP (normalized).
Missing fields
Rows missing a name, an email, or an address.