Text List Comparator
Paste two lists and instantly see what's unique to each and what they have in common.
Comparison Results
Unique in A:
Unique in B:
Common:
About this tool
Comparing two lists by eye — a spreadsheet export against a CRM list, an old inventory against a new one, or two sets of usernames — is slow and error-prone. This tool does it instantly: paste each list (one item per line) and it sorts every entry into three groups: only in List A, only in List B, and common to both.
Common use cases
Finding which subscribers unsubscribed between two exports, checking which SKUs were added or removed from a catalog, or de-duplicating two combined contact lists before merging them.