Suggest an alternative to

ImageViewer

Read long string of picture, pure html/javascript/css (no nodejs, no server required, no installation required)

Why do you think that https://github.com/openseadragon/openseadragon is a good alternative to ImageViewer

A URL to the alternative repo (e.g. GitHub, GitLab)

Here you can share your experience with the project you are suggesting or its comparison with ImageViewer. Optional.

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