CSV Diff

Compare two CSV files and see what changed.

Pick a key column and get added, removed and changed rows instantly. Your files never leave your browser. Made by the team behind Flookup.

  1. 1 Load file A
  2. 2 Load file B
  3. 3 Key column
  4. 4 Compare
Compare two CSV files by a key column.
File A: current Not loaded
File B: compared Not loaded
Load both files to compare.

Comparing more than two files?

For reconciliation across many files, fuzzy matching and merge workflows inside Google Sheets, try Flookup Data Wrangler.

CSV Diff processes everything locally in your browser. Nothing is uploaded, tracked or stored by us.