Compare names and Excel columns
Paste one item per line into each list. The results separate items found in both lists, only on the left and only on the right. Copy each result separately. If you fill only one side, its unique items appear on that side.
Matching rules and result order
Empty and whitespace-only lines are excluded. Repeated items within a list appear once. Trimming removes spaces at both ends of each line. Ignoring case compares lowercase forms. Results preserve input order; common items use the first spelling from the left list.
Scope and limits
Each input supports up to 200,000 characters. This tool does not parse comma-separated or tab-separated columns: copy one Excel column at a time. Similar names with different spelling remain different. Internal spaces, accents and full-width characters are not normalized.