Venn Diagrams, Concept Maps & Tree Diagrams

Tools for showing how ideas relate. The Venn Diagram Maker places each item you type in the right overlap of two to five sets, and the 3 Circle Venn Diagram fills the seven regions of three circles and works out unions, intersections and complements. The Concept Map Maker connects ideas with labelled arrows, and the Tree Diagram Maker turns an indented outline into a branching tree.

All four run in your browser, keep your work on your device and export PNG, SVG or PDF for class notes, homework or slides.

Tools in this group

• 3 Circle Venn Diagram — Fill in the seven parts of three overlapping circles with items or numbers and read off the unions, intersections and complements.
• Concept Map Maker — Add concepts, connect them with labelled arrows and download the finished concept map as PNG, SVG or PDF.
• Tree Diagram Maker — Type your tree as an indented outline or draw it with boxes and branches, then download it as PNG, SVG or PDF.
• Venn Diagram Maker — Type the items of each set, one per line, and the diagram puts every item in the right overlap. Download it as PNG, SVG or PDF.