# openseadragon

> Provides a smooth, zoomable user interface for HTML/Javascript.

Latest version **6.1.1** (published 2026-09-09) · BSD-3-Clause license · 0 weekly downloads

## Install

```sh
npm install openseadragon
pnpm add openseadragon
yarn add openseadragon
bun add openseadragon
```

## Health

**Score 65/100 (B)** — status: active.

Positive: has types; no vulnerabilities; recently updated; high maintenance score; high quality score.

Warnings: low downloads; no esm support.

## Facts

| | |
|---|---|
| Version | 6.1.1 |
| Published | 2026-09-09 |
| First published | 2015-12-01 |
| Weekly downloads | 0 |
| License | BSD-3-Clause |
| TypeScript types | bundled |
| Module format | CommonJS |
| Dependencies | 0 |
| Unpacked size | 5.5 MB |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 3511 |
| Maintainers | iangilman |
| Keywords | image, zoom, pan, openseadragon, seadragon, deepzoom, dzi, iiif, osm, osd, tms |

## Links

- npm: https://www.npmjs.com/package/openseadragon
- Repository: https://github.com/openseadragon/openseadragon
- Homepage: https://openseadragon.github.io/
- Issues: https://github.com/openseadragon/openseadragon/issues
- Funding: https://opencollective.com/openseadragon
- npm.io page: https://npm.io/package/openseadragon

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## Recent versions

- 6.1.1 (latest) — 2026-09-09
- 6.1.0 — 2026-08-06
- 6.0.2 — 2026-03-13
- 6.0.1 — 2026-02-23
- 6.0.0 — 2026-02-18
- 5.0.1 — 2024-12-09
- 5.0.0 — 2024-08-14
- 4.1.1 — 2024-04-01
- 4.1.0 — 2023-05-25
- 4.0.0 — 2022-12-16
- 3.1.0 — 2022-06-08
- 3.0.0 — 2021-12-15
- 2.4.2 — 2020-03-05
- 2.4.1 — 2019-07-03
- 2.4.0 — 2018-07-20
- … 5 more at https://npm.io/package/openseadragon/versions

## README

# OpenSeadragon

<!-- [![Gitter][gitter-badge]][gitter]
[![Build Status][build-badge]][build] -->

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/
<!-- [gitter-badge]: https://badges.gitter.im/Join%20Chat.svg
[gitter]: https://gitter.im/openseadragon/openseadragon?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge
[build-badge]: https://secure.travis-ci.org/openseadragon/openseadragon.png?branch=master
[build]: https://travis-ci.org/openseadragon/openseadragon -->
[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>

---
_Source: https://npm.io/package/openseadragon · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._