Generate diagram-rich reports and documents, instantly. Generate software architecture diagrams, network diagrams, UML diagrams, cloud diagrams and many more!
Cost / License
- Freemium
- Proprietary
Platforms
- Online

OmniGraffle is not available as a web app but there are plenty of alternatives that runs in the browser with similar functionality. The best free Online alternative is draw.io, which is also Open Source. If that doesn't suit you, our users have ranked more than 100 alternatives to OmniGraffle and many of them are free and available as a web app so hopefully you can find a suitable replacement. Other interesting free Online alternatives to OmniGraffle are Penpot, Excalidraw, yEd Graph Editor and Xmind.
Generate diagram-rich reports and documents, instantly. Generate software architecture diagrams, network diagrams, UML diagrams, cloud diagrams and many more!

Zen Flowchart is the simplest tool to create flowcharts, org charts, process charts, sitemaps, and more. With a minimal and intuitive user interface, creating diagrams with Zen Flowchart is very easy and delightful.



Vecta is a cloud-based collaborative diagramming tool that boosts productivity and increase effectiveness for team communication.


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PathVisio is a free open-source pathway analysis and drawing software that allows drawing, editing and analysing biological pathways.



Theory Maker is a free web app by Steve Powell for making any kind of causal diagram, i.e. a diagram which uses arrows to say what contributes to what. You make the diagrams just by typing the names of the elements (called variables) in a structured way into a (resizeable)...




Holori diagramming tool helps DevOps and Cloud Architects design their architecture, estimate its cost and turn their dreamed architecture into a live infrastructure.

The PlantText tool is an online tool for quickly creating UML (Unified Modeling Language) diagrams. Unlike most tools, PlantText can build diagrams without the use of a mouse because it is based on PlantUML markup language.

