Excel Compare & Remove
Upload two Excel/CSV files. Rows from File B matching File A are removed. Compare by specific columns or entire rows. 100% local processing.
File A (Reference)
Upload File A
Rows to match against
Rows to match against
File B (Target)
Upload File B
File to clean
File to clean
Comparison Mode
Upload both files first
Results
File B original: 0 | Matches found: 0 | Final rows: 0
File B original: 0 | Matches found: 0 | Final rows: 0
Compare files to see results
How to Use
1
Upload Files
Upload File A (reference) and File B (target to clean).
2
Configure
Choose columns or entire-row comparison mode.
3
Compare & Download
Remove matching rows and download the cleaned result.
Use Cases
Unsubscribe Lists
Remove opted-out emails from your mailing list.
Remove opted-out emails from your mailing list.
Data Dedup
Remove records already processed from a new batch.
Remove records already processed from a new batch.
List Difference
Find items in B that don't exist in A.
Find items in B that don't exist in A.
Privacy
All processing in-browser. No data uploaded.
All processing in-browser. No data uploaded.
✓ Done!