Visme provides you with the tools to create online presentations, infographics and banners to share with others.
Plot and compare functions and equations in GraphSketch, a simple to use, online graph plotter.
Powerful plotting and not a grain of gunpowder in sight. Plot.ly can be used by a range of users, from those who need only the simplest bar charts, to those who have complex data and want to hack the chart’s underlying code.
Create highly visual, animated charts with Rich Chart Live.
And here’s an (almost complete!) example:
Create simple charts online using ChartGizmo.
And here’s a simple embedded, interactive example:
Your infographic creation skills will be ably assisted (or provided!) by Piktochart, an online desktop publishing application.
ChartTool offers a good range of different graph types to create, bundled with a wide feature set from which to choose.