Venn Diagram Generator

Create interactive 2‑, 3‑, or 4‑set Venn diagrams from lists. Instantly see overlaps, counts, and export your diagram and intersection table.

2–4 sets List-based PNG / SVG export Intersection table

1. Enter your sets

2. Explore the diagram

Hover or tap a region to see which items belong to that intersection.

3. Intersection details

Set A Set B Set C Set D

Selected region

No region selected yet.

All regions (summary)

Region Count

How to use this Venn diagram generator

This tool is designed for students, teachers, data analysts, and researchers who need a fast, list‑based Venn diagram generator. Unlike simple drawing tools, it actually computes set intersections from your data.

Step‑by‑step

  1. Choose the number of sets (2, 3, or 4) at the top.
  2. Name each set (for example: “Email list A”, “Email list B”, “Email list C”).
  3. Paste your items into each box:
    • One item per line, or
    • Separated by commas or spaces (change the “Items separated by” option).
  4. Optionally:
    • Enable Ignore duplicates to treat repeated items as one.
    • Enable Case sensitive if “Apple” and “apple” should be different.
  5. Click Generate Venn diagram.
  6. Hover or tap any region to see the items in that intersection.
  7. Use the buttons above the diagram to download PNG, SVG, or CSV of the intersection table.

What this Venn diagram generator does

Given up to four sets of items, the generator:

  • Parses your lists into sets.
  • Computes all possible intersections (A∩B, A∩B∩C, etc.).
  • Draws an approximate Venn diagram with labeled regions.
  • Shows counts for each region and the full list of items in each intersection.

Supported Venn diagrams

  • 2‑set Venn – A, B, and A∩B.
  • 3‑set Venn – A, B, C, pairwise overlaps, and A∩B∩C.
  • 4‑set Venn – A, B, C, D and all non‑empty intersections (up to 15 regions).

Set theory basics

A Venn diagram is a visual way to show relationships between sets. Each circle represents a set, and overlapping areas represent intersections.

Key operations:

  • Intersection (A ∩ B): items that are in both A and B.
  • Union (A ∪ B): items that are in A, or B, or both.
  • Difference (A − B): items in A that are not in B.

Our generator focuses on intersections, because that’s what most people need when comparing lists (e.g., overlapping customers, genes, IDs, or survey responses).

Typical use cases

  • Marketing & CRM: overlap between email lists, campaigns, or customer segments.
  • Bioinformatics: overlapping gene lists from different experiments.
  • Education: teaching set theory, logic, and probability.
  • Research & surveys: respondents who satisfy multiple criteria.

Tips for clean results

  • Keep item IDs consistent across sets (same spelling and formatting).
  • Turn off “Ignore duplicates” only if you truly need to count repeated items.
  • For very large lists, prefer newline‑separated items to avoid parsing issues.