Venn diagram online
Enter two sets to find shared items and those belonging to only one set.
Inputs stay in your browser. No account or server submission.
How to use it
- Enter A and B, separating items with semicolons or new lines.
- Select Compare sets. Duplicate items in each set count once.
- Compare the diagram counts with the item lists in the table.
Method and example
A ∩ B is the intersection. A ∪ B contains all distinct items. A ∖ B contains items in A that are not in B.
|A ∪ B| = |A| + |B| − |A ∩ B|. Circle areas are schematic, not proportional to counts.
Items are text: “01” differs from “1”, and “a” differs from “A”. Blank entries and surrounding spaces are ignored. Empty sets are allowed.
Example: A = 1, 2, 3, B = 3, 4. Shared: 3; only A: 1, 2; only B: 4; union: 1, 2, 3, 4.