[](https://travis-ci.org/danvk/dygraphs)
# dygraphs JavaScript charting library
The dygraphs JavaScript library produces interactive, zoomable charts of time series:
Learn more about it at [dygraphs.com](http://www.dygraphs.com).
Get help with dygraphs on
[Stack Overflow](http://stackoverflow.com/questions/tagged/dygraphs) (preferred) and
[Google Groups](http://groups.google.com/group/dygraphs-users)
## Features
* Plots time series without using an external server or Flash
* Supports [error bands](http://dygraphs.com/tests/legend-values.html) around data series
* Interactive [pan and zoom](http://dygraphs.com/tests/link-interaction.html)
* Displays values [on mouseover](http://dygraphs.com/tests/legend-values.html)
* Adjustable [averaging period](http://dygraphs.com/tests/temperature-sf-ny.html)
* Extensive set of [options](http://www.dygraphs.com/options.html) for customization.
* Compatible with the [Google Visualization API](http://dygraphs.com/data.html#datatable)
## Minimal Example
```html
```
Learn more by reading [the tutorial](http://www.dygraphs.com/tutorial.html) and
seeing demonstrations of what dygraphs can do in the
[gallery](http://www.dygraphs.com/gallery).
## Making Changes
If you've made a change to dygraphs and would like to contribute it back to the
community, please follow the [Guide to making dygraphs
changes](http://dygraphs.com/changes.html).
## License(s)
dygraphs uses:
- UglifyJS (BSD License)
- JsDoc Toolkit (MIT license)
- console-polyfill (MIT license)
automated tests use:
- auto_tests/lib/jquery-1.4.2.js (MIT & GPL2)
- auto_tests/lib/Asserts.js (Apache 2.0 License)
- auto-tests/lib/JsTestDriver-1.3.3cjar (Apache 2.0 License)
dygraphs is available under the MIT license, included in LICENSE.txt.