Create free online charts with Google Chart API

I came across Google Chart API today which lets you create charts online for free*.

Supported charts include:

1. Line charts
2. Bar charts
3. Pie charts Updated!
4. Venn diagrams
5. Scatter plots
6. Radar charts
7. Maps
8. Google-o-meters
9. QR codes

The sample charts look really cool.

Venn diagram


Pie chart


Radar chart


* If you plan to call Google chart API more than 250,000 times a day, you should let the chart developers know by emailing chart-api-notifications@google.com