Venn diagram maker
List what’s in each group. ChartCraft sorts every item into the right region — only A, both, all three — so you never have to work out the overlaps by hand.
Two or three lines. Each line: a set name, a colon, then items separated by commas. Shared items land in the overlaps automatically.
Labels & options
| Region | Count | Items |
|---|---|---|
| Only EnglishA ∩ B′ ∩ C′ | 3 | Ben, Eli, Fay |
| Only SpanishA′ ∩ B ∩ C′ | 1 | Gil |
| Only FrenchA′ ∩ B′ ∩ C | 1 | Ines |
| English and Spanish onlyA ∩ B ∩ C′ | 1 | Ana |
| English and French onlyA ∩ B′ ∩ C | 1 | Chen |
| Spanish and French onlyA′ ∩ B ∩ C | 1 | Hugo |
| All three (English ∩ Spanish ∩ French)A ∩ B ∩ C | 1 | Dev |
English: 6 · Spanish: 4 · French: 4 · in all: 1 · in at least one (union): 9
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How to make a venn diagram
- Write one line per set: a name, a colon, then the items separated by commas (e.g. “Cats: Ana, Ben”).
- Add a third line for a 3-circle Venn diagram.
- Items that appear in several lines are placed in the overlaps automatically (case doesn’t matter).
- Tick “Show counts, not names” for big sets, then download or share.
Set notation, lit up
A = speaks English, B = speaks Spanish. Pick an expression to see which region it means.
A ∩ B = { Chen, Dev }
A ∩ B is the intersection — in both A and B. Jo speaks neither, so Jo sits outside both circles.
What a Venn diagram shows
Each circle is a set; the overlap holds items that belong to both. It was popularised by the logician John Venn in 1880. Venn diagrams are ideal for comparing features, finding shared customers or students, and teaching set notation: union (A ∪ B), intersection (A ∩ B) and difference (A − B).
2-circle vs 3-circle
A 2-circle diagram has three regions (only A, only B, both). A 3-circle diagram has seven: three “only” regions, three pairwise overlaps and the centre where all three meet. Four or more sets can’t be drawn with circles so that every combination gets its own region — that’s a mathematical limit, not a tool limit. For more sets, consider an UpSet plot or a table.
Here the circles are the same size for readability; region contents are exact. If you need circle areas proportional to set sizes, note that in the caption.
Questions
How do I make a 3 circle Venn diagram?
Enter three lines, one per set, like “French: Chen, Dev”. The third line adds the third circle and all seven regions.
Can I show numbers instead of names?
Yes. Tick “Show counts, not names”. Regions with more than six items switch to counts automatically so they stay readable.
What’s the difference between a Venn diagram and an Euler diagram?
A Venn diagram draws every possible overlap even if it’s empty. An Euler diagram only draws overlaps that exist. This tool draws true Venn diagrams and shows “—” in empty regions.
How do I see what is in each region?
The “What’s in each region” table under the chart lists every region (only A, A and B only, all three…), how many items it holds and which ones, in set notation too.
Is there a 3 circle Venn diagram maker?
Yes. Add a third line here, or start from the 3 circle Venn diagram maker, which has a three-set example ready.
How do I type an item that contains a comma?
Commas separate items, so use a semicolon-free short name instead, e.g. “Smith J” rather than “Smith, J”.