List Compare client-side
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How to use List Compare

Paste two lists (one entry per line) and get their set operations: common items (intersection), only in A, only in B, deduplicated union and symmetric difference. Options to ignore case, trim spaces and sort. Handy to compare emails, IDs or references. Everything is processed in your browser.

Compare two lists (common, unique, union).

ListesComparisonEnsemblesDiff

How to use List Compare

Paste two lists (one entry per line) and get their set operations: common items (intersection), only in A, only in B, deduplicated union and symmetric difference. Options to ignore case, trim spaces and sort. Handy to compare emails, IDs or references. Everything is processed in your browser.

Frequently asked questions

Are duplicates handled?

Yes, each result is deduplicated. Options let you ignore case and whitespace for looser comparisons.