draw.io is free online diagram software for making flowcharts, process diagrams, org charts, UML, ER and network diagrams

Backwards Compatible Diagram files created in 2005 load in today's app. Your work is never obsolete.

Auto-generate a sequence diagram from text, then edit the markup or style your diagram as desired.

Create diagrams for free in minutes with editable diagram templates and examples from our online diagram maker.

Create diagrams and visualizations using text and code.

Excalidraw is a virtual collaborative whiteboard tool that lets you easily sketch diagrams that have a hand-drawn feel to them.

Create an unlimited number of diagrams, charts and other visuals from a wide range of diagram types. Get a head start with pre-made templates, or create your own.

A diagram is a symbolic representation of information using visualization techniques. Diagrams have been used since prehistoric times on walls of caves, but became more prevalent during the …

The meaning of DIAGRAM is a graphic design that explains rather than represents; especially : a drawing that shows arrangement and relations (as of parts). How to use diagram in a sentence.

Provide persistent protection of diagram files while users collaborate. Visio shares many of the same security features as Microsoft 365 apps, including Information Rights Management (IRM).