Inventory checks
Compare a supplier list with your catalog to find missing or extra identifiers.
Private • Fast • Browser-based
Compare two lists
Paste two lists or choose spreadsheet columns. Match exact values, normalized variants and likely similarities while every record remains on your device.
✓ No server upload✓ CSV & Excel✓ No signup
A
List A
B
List B
Matching settings
Comparison type
Ways to use it
Resolve everyday list work faster
Contact cleanup
Spot repeated entries and formatting variations before importing contacts.
Migration verification
Check a source export against its destination to identify records that did not carry over.
Attendance reconciliation
Compare registration and attendance lists to see who joined or was absent.
How it works
Results in three steps
- 1Add your listsPaste them or select columns from files.
- 2Choose matching rulesTune normalization and threshold for your data.
- 3Review and exportCheck categories and download CSV or Excel.
Frequently asked questions
What to know
Are my lists uploaded?
No. Parsing, matching and exports run locally in your browser.
What counts as a normalized match?
A value that becomes equal after enabled cleanup such as case, spacing, punctuation or accent normalization.