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List Diff
Two lists separated by a line containing only "---": one item per line. Output: items only in B (added), only in A (removed), in both (common), each sorted, plus counts. Comparison is exact after trimming; blank lines ignored.
A little guidance. A better result.
How to use List Diff
Two lists → added / removed / common, sorted, with counts.
Prepare your input
Enter two lists separated by a line containing only three hyphens.
Use the workspace
Review added, removed and common items.
Check your result
Check counts and representative differences.
Know the limits
Matching is exact after trimming; blank lines are ignored and results are sorted rather than kept in input order.
Where does my input go?
This browser tool processes your input on your device. Optional analytics is a separate choice; it is not needed to use the tool. Keep your original until you have checked the result.
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