Sites built with OpenSeadragon
Open source JavaScript viewer for high resolution zoomable images.
Get told when a new site ships with OpenSeadragon.
Stackdar watches every launch we detect and sends you the ones using OpenSeadragon, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work44 sites
43 found by StackScope, 1 via launch platforms
- StackScope Wider Web 41
- StackScope Discovery (Indie) 2
- Product Hunt 1
OpenSeadragon has been detected on 44 launches we've crawled, with 28 of those in September 2026 (0.0% of the month's launches so far). The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: Impact Collage, yesterday.
It's most commonly paired with jQuery, ASP.NET, and Google Fonts. By domain ending, launches using it are 1.5 times as likely as the average launch to live on a .com domain.
Domain endings using OpenSeadragon
44 sites
- .com 72.73%
- .org 9.09%
- .uk 4.55%
- .art 2.27%
- .de 2.27%
- .fr 2.27%
- .lt 2.27%
- .net 2.27%
- .xyz 2.27%
Share of new sites using OpenSeadragon
Each dot is one launch day. Line is the 7-day rolling average. Chart starts at first detection.
The shaded part of the chart is measured against a different set of sites.
Amber: on 10 September 2026 we improved our infrastructure so we can index new sites much sooner, often on the day they go live. Sites found that early often haven't finished setting up, so anything usually added after launch reads lower from that date. We record each site as it was when we found it.
The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.
Javascript Library leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – |
jQuery
|
14.59% | 35.53% |
| #2 | – |
React Router
|
6.34% | 15.45% |
| #3 | – |
Motion
|
5.89% | 14.36% |
| #4 | – |
TanStack Router
|
4.18% | 10.18% |
| #5 | – |
Swiper
|
3.67% | 8.94% |
| … | ||||
| #439 | ▲290 |
OpenSeadragon
Current page
|
<0.01% | <0.01% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Javascript Library tool.Among August launches it ranked #479 in Javascript Library, up from #769 in July. All 1387 in Javascript Library →
Often used with
| Tool | Sites |
|---|---|
|
jQuery
|
27 |
ASP.NET
|
23 |
Google Fonts
|
22 |
Ajax Control Toolkit
|
21 |
Cloudflare DNS
|
20 |
Tools most often detected on the same sites as OpenSeadragon.
Recent launches we can show
3 of the 44 sites using OpenSeadragon are product launches we list individually. The other 41 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works
Impact Collage
Marketing
Leibniz Legible
Education
Wanderseum — The Virtual Museum · 391,107 Public-Domain Paintings
The StackScope API serves all 44 sites using OpenSeadragon, filterable and exportable, from £15 a month.