JavaScript library that adds deep anchor links to headings on a page.
Get told when a new site ships with AnchorJS.
Stackdar watches every launch we detect and sends you the ones using AnchorJS, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work1,417 sites
1,410 found by StackScope, 7 via launch platforms
- StackScope Wider Web 1,382
- StackScope Discovery (Indie) 28
- Hacker News 5
- Product Hunt 2
AnchorJS has been detected on 1,417 launches we've crawled, with 791 of those in August 2026 (0.1% of the month's launches so far). The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: 440Grit, today.
It's most commonly paired with GitHub Pages, Fastly, and cdnjs. By product type, the launches using it are most often Developer Tools (39%), Education (16%), and Finance (8%). By estimated origin, the United Kingdom leads (22%), ahead of Canada (12%). By domain ending, launches using it are 62.2 times as likely as the average launch to live on a .me domain.
What kind of products ship with AnchorJS
158 launches
Domain endings using AnchorJS
1,417 sites
- .me 63.66%
- .com 13.41%
- .dev 4.09%
- .org 3.18%
- .app 2.12%
- .site 1.55%
- .tech 1.48%
- .online 1.41%
- .uk 1.20%
- .io 1.13%
- .xyz 1.13%
- .net 0.99%
- .ca 0.64%
- .space 0.56%
Country
76 of 1,417 sites. Read from legal pages, company numbers and domain endings, so sites that publish none are missing and the US is undercounted.
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United Kingdom 22.37%
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Canada 11.84%
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Switzerland 10.53%
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Germany 9.21%
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United States 9.21%
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India 7.89%
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China 6.58%
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Japan 5.26%
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Slovakia 3.95%
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Czechia 2.63%
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South Korea 2.63%
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New Zealand 2.63%
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Australia 1.32%
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Iran 1.32%
Share of new sites using AnchorJS
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. 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.
How StackScope detects technologies
⋮ Jul 1, 2026: Adoption figures now count launches from launch platforms. Use the source view to include StackScope Discovery.
Javascript Library leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | ▲1 |
|
13.89% | 33.68% |
| #2 | ▼2 |
|
6.93% | 16.80% |
| #3 | ▲1 |
|
6.92% | 16.77% |
| #4 | – |
|
4.23% | 10.26% |
| #5 | ▲5 |
|
3.51% | 8.52% |
| … | ||||
| #72 |
|
0.06% | 0.16% | |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Javascript Library tool. All 978 in Javascript Library →
Recent launches we can show
35 of the 1,417 sites using AnchorJS are product launches we list individually. The other 1,382 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
Mchen6
Developer Tools
Julius383
Developer Tools
Showing the most recent 12 of 35.
The StackScope API serves all 1,417 sites using AnchorJS, filterable and exportable, from £15 a month.