Fork me on GitHub

OpenSeadragon 1.2.1


An open-source, web-based viewer for zoomable images, implemented in pure JavaScript, for desktop and mobile.
OpenSeadragon Viewer With Default Settings
Image © 2012, Dario Morelli

Examples & Features


Plugins can be used to enhance OpenSeadragon. The following plugins are currently available:

Download & Install

You can download OpenSeadragon 1.2.1 in zip or tar.gz formats.

You can also use Bower to install it: bower install openseadragon

For installation instructions, see the Getting Started page in the documentation.

For creating the tiles themselves, see Creating Zooming Images.

Older releases and source archives are available on GitHub.

API Documentation

Available on our documentation pages.


GitHub: issue tracker

Twitter: @OpenSeadragon

Chat: Gitter (also accessible via IRC)


OpenSeadragon is developed on GitHub. You can clone the source repository with Git by running:

git clone git://


OpenSeadragon is released under the New BSD license.