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/.

Stable Builds

See the GitHub releases page.

Learning Course

The official OpenSeadragon course is now live! Taught by @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/. If you want to modify OpenSeadragon and/or contribute to its development, read the contributing guide for instructions.

License

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

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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>           <a href="https://www.pitt.edu/"><img alt="University of Pittsburgh Logo" src="assets/logos/pitt-logo.png" height="70" /></a>           <a href="https://www.stanford.edu/"><img alt="Stanford University Logo" src="assets/logos/stanford-logo.png" height="70" /></a>