# OpenSeadragon

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An open-source, web-based viewer for zoomable images, implemented in pure JavaScript.

See it in action and get started using it at [https://openseadragon.github.io/][openseadragon].

## Stable Builds

See the [GitHub releases page][github-releases].

## Learning Course

The official OpenSeadragon course is now live! Taught by [@iangilman](https://github.com/iangilman/), creator and maintainer, this is your best introduction to working with OpenSeadragon, from basic concepts to coordinate systems, animation, and beyond.

Learn more at: https://www.newline.co/courses/openseadragon-deep-dive

<a href="https://www.newline.co/courses/openseadragon-deep-dive"><img alt="OpenSeadragon Deep Dive" src="assets/osdnewline.jpg" height="280" /></a>

## Development

If you want to use OpenSeadragon in your own projects, you can find the latest stable build, API documentation, and example code at [https://openseadragon.github.io/][openseadragon]. If you want to modify OpenSeadragon and/or contribute to its development, read the [contributing guide][github-contributing] for instructions.

## License

OpenSeadragon is released under the New BSD license. For details, see the [LICENSE.txt file][github-license].

[openseadragon]: https://openseadragon.github.io/
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[github-releases]: https://github.com/openseadragon/openseadragon/releases
[github-contributing]: https://github.com/openseadragon/openseadragon/blob/master/CONTRIBUTING.md
[github-license]: https://github.com/openseadragon/openseadragon/blob/master/LICENSE.txt

## Sponsors

We are grateful for the (development or financial) contribution to the OpenSeadragon project.

<a href="https://www.bbmri-eric.eu"><img alt="BBMRI ERIC Logo" src="assets/logos/bbmri-logo.png" height="70" /></a>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<a href="https://www.pitt.edu/"><img alt="University of Pittsburgh Logo" src="assets/logos/pitt-logo.png" height="70" /></a>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
<a href="https://www.stanford.edu/"><img alt="Stanford University Logo" src="assets/logos/stanford-logo.png" height="70" /></a>