Free public CDN that serves npm packages as standards-compliant ES modules.
Get told when a new site ships with esm.sh.
Stackdar watches every launch we detect and sends you the ones using esm.sh, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work1,340 sites
1,181 found by StackScope, 159 via launch platforms
- StackScope Wider Web 720
- StackScope Discovery (Indie) 461
- Product Hunt 121
- PeerPush 23
- Hacker News 11
- Other 4
esm.sh has been detected on 1,340 launches we've crawled. The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: Roll Call, today.
It's most commonly paired with HSTS, Google Search Console, and Cloudflare. By product type, the launches using it are most often Productivity (12%), Crypto (11%), and Health (10%). By estimated origin, the United States leads (49%), ahead of India (15%). By domain ending, launches using it are 2.0 times as likely as the average launch to live on a .site domain.
What kind of products ship with esm.sh
649 launches
Domain endings using esm.sh
1,341 sites
- .com 41.91%
- .app 13.42%
- .ai 5.29%
- .io 4.55%
- .dev 3.58%
- .online 3.28%
- .site 3.13%
- .xyz 2.91%
- .net 2.61%
- .org 2.16%
- .co 2.09%
- .in 2.09%
- .uk 1.72%
- .ca 1.34%
- .me 1.34%
Country
41 of 1,340 sites, where we are confident of the country.
-
United States 48.78%
-
India 14.63%
-
United Kingdom 12.20%
-
South Korea 4.88%
-
Armenia 2.44%
-
Australia 2.44%
-
Czechia 2.44%
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Denmark 2.44%
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Japan 2.44%
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Nigeria 2.44%
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Panama 2.44%
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Türkiye 2.44%
Share of new sites using esm.sh
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before June 2026.
The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. 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.
Package CDN leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | ▲1 |
|
4.73% | 49.20% |
| #2 | ▼1 |
|
4.66% | 48.45% |
| #3 | – |
|
1.92% | 19.94% |
| #4 | – |
|
0.84% | 8.70% |
| #5 | – |
|
0.05% | 0.54% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Package CDN tool. All 35 in Package CDN →
Recent launches we can show
620 of the 1,340 sites using esm.sh are product launches we list individually. The other 720 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
Showing the most recent 12 of 620.
The StackScope API serves all 1,340 sites using esm.sh, filterable and exportable, from £15 a month.