Title

Circles

Colors

Circle names

Start from a template

What goes in each part (one item per line)

Show "Made with evant.app"

Type on the left and the diagram updates. Share links hold your diagram, never your lists.

What is a Venn diagram?

A Venn diagram uses overlapping circles to show what groups have in common and where they differ. Each circle is a group. Where circles overlap, you put what they share. A 3-circle Venn diagram has seven parts: one for each group alone, one for each pair, and one in the middle for what all three share.

How to make a Venn diagram

It takes about a minute.

Name your circles

Pick 2 or 3 groups and give each one a name and a color. Or start from a template.

Fill in each part

Type what goes in each section, one item per line. The diagram updates as you type.

Download or share

Save it as a PNG for slides and flyers, or an SVG for print. A share link saves your diagram so you can come back to it.

Find out who's really involved

The part most Venn diagram makers don't do.

Paste in your real lists and get the overlap, counted for you. Switch to "Compare your lists" and paste up to three lists of phone numbers, emails or names: say, people who came to events, people who volunteered and people who gave. The tool matches people across lists, even when a phone number is written two different ways, and draws the diagram with real counts. Each group comes with a suggested next step, a text you can send them, and a CSV download.

Group	What it tells you	A good next step
In all three	Your core people	Thank them personally, by name
Came, but never volunteered	Interested, but nobody asked	Invite them to help with one specific thing
Gave, but didn't come	They care from a distance	Send a personal invite to the next event
Only in one list	Easy to lose	A quick, personal check-in text

Why this matters

People want to be involved in their community. Give them the opportunity. Shuls, churches and schools have taught me that community works best when people are in the loop and know what's going on. Often, the people who aren't involved yet just haven't been given the opportunity. A Venn diagram of your own lists shows you exactly who those people are. Then skip the mass blast and send each group a personal text, at a time they'd actually want it.

Michael Pedoeem, founder of Evant

Venn diagram terms, in plain English

Term	What it means	Where it is
Intersection (A ∩ B)	What both groups share	Where the circles overlap
Union (A ∪ B)	Everything in either group	Both circles together
Difference (A − B)	In A but not in B	The part of A outside B
Symmetric difference	In one group or the other, but not both	Both circles minus the overlap
Complement	Everything outside a group	Outside the circle

Venn diagram ideas for your organization

Members, volunteers and donors

See who does what, and who you haven't asked yet. Start from the template above.

This year vs last year

Compare RSVP lists from two years of the same event to see who came back and who you lost.

Text, email or a call?

Map which messages belong on which channel. A reminder and an RSVP are made for text.

Picking a vendor or tool

Put what each option offers side by side. Price is only one circle. Support and reliability matter too.

Planning an event

Must-haves, nice-to-haves and what fits the budget. The middle is your plan.

Board and committee decisions

Show where two proposals agree before you argue about where they don't.

More free tools

Phone list cleanerClean and dedupe a list before you compare it.RSVP calculatorEstimate how many people will show up.All free SMS toolsCount it, clean it, check it.

Know who to text. Then text them.

With Evant you text your whole community from one number, collect RSVPs by text and take donations. We handle the carrier registration.

Try Evant free

Two-way texting with your whole community
Text-to-RSVP with a live headcount
Voice calls for members who don't text
Plans from $20/month, free trial

Venn Diagram Maker FAQ

What is a Venn diagram used for?

Showing how groups overlap: what they have in common and what makes each one different. People use them for comparisons, planning, teaching and, with this tool, seeing who is on more than one of your lists.

How do I make a Venn diagram for free?

Use the maker above. Pick 2 or 3 circles, name them, type what goes in each part, then download a PNG or SVG. No sign-up needed.

Can I compare two lists to find the overlap?

Yes. Switch to "Compare your lists" and paste up to three lists of phone numbers, emails or names. The tool counts who is in each part of the diagram and lets you download each group as a CSV.

Will it match phone numbers written different ways?

Yes. (201) 555-2368, 201.555.2368 and +1 201-555-2368 count as the same person. Emails are matched without regard to capital letters.

Who invented the Venn diagram?

John Venn, an English logician, introduced them in 1880.

Are my lists uploaded anywhere?

No. Everything runs in your browser. Share links save your diagram's text, never your lists.

Is this Venn diagram maker free?

Yes. No sign-up and no limits. There's a small "Made with evant.app" credit in the corner, and you can turn it off with one click.

Last updated November 2026 by Michael Pedoeem, founder of Evant.