C3.js Alternatives

D3.js is a JavaScript library for manipulating documents based on data. D3 helps you bring data to life using HTML, SVG, and CSS.

UMLGraph is a professional automated drawing tool that allows the designers the declarative specification and drawing of UML class and sequence diagram.

Easy, object oriented client side graphs for designers and developers.

Dia is a GTK+ based diagram creation program for GNU/Linux, MacOS X, Unix, and Windows, and is released under the GPL license.

yEd is a free desktop application to quickly create, import, edit, and automatically arrange diagrams. It runs on Windows, Mac OS X, and Unix/Linux.

OmniGraffle is for creating precise graphics like website wireframes, an electrical system designs, or mapping out software class.

A charting library written in pure JavaScript, offering an easy way of adding interactive charts to your web site or web application

ArgoUML, free and safe download. ArgoUML latest version: Open-source diagramming application for personal computers. ArgoUML is a program that allows users to create complex and professional diagrams.

PlantUML is an open-source tool that uses simple textual descriptions to draw UML diagrams.

UMLet - Free UML Tool for Fast UML Diagrams

StarUML

Online diagramming application

Gaphor is a Python-based, open source, multiplatform and multipurpose modeling application for creating nice UML diagrams for documentation.