As of October 9, 2026, script.aculo.us is used by 72,902 websites in the TechLeads index: 0.06% of all JavaScript libraries detections, the 77th most-used of 358 JavaScript libraries technologies.
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Citation
TechLeads. "script.aculo.us Customers and Market Share." Data as of October 9, 2026. https://techleads.fyi/technology/script-aculo-us/market-shareHTML link
<a href="https://techleads.fyi/technology/script-aculo-us/market-share">script.aculo.us market share (TechLeads data)</a>Websites using each technology in the TechLeads index, and its share of all JavaScript libraries detections.
| # | Technology | Websites | Share |
|---|---|---|---|
| 1 | jQuery | 38,696,305 | 29.7% |
| 2 | jQuery Migrate | 15,285,689 | 11.7% |
| 3 | core-js | 9,046,688 | 6.9% |
| 4 | Swiper | 6,540,731 | 5.0% |
| 5 | jQuery UI | 6,353,603 | 4.9% |
| 6 | OWL Carousel | 3,903,823 | 3.0% |
| 7 | Lodash |
In HTTP Archive's monthly crawl of public websites, script.aculo.us was detected on 44,267 pages in September 2026, down 28.3% from a year earlier (peak: 121,817). Among the 1,000 most-visited sites, it appeared on 4. HTTP Archive is a separate dataset from the TechLeads index, so its numbers are not added to ours.
Same month, other JavaScript Libraries technologies in HTTP Archive: jQuery 32,400,479, core-js 20,296,277, jQuery Migrate 14,931,388, jQuery UI 10,564,965, Swiper 7,844,933.
See all 72,902 websites using script.aculo.us or download the full list as a CSV for $29.
TechLeads scans public websites and detects script.aculo.us from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Market share is script.aculo.us's website count divided by the website counts of all JavaScript libraries technologies we track; a site using two JavaScript libraries tools counts for both. Counts were last refreshed on October 9, 2026 and update daily.
| 3,148,353 |
| 2.4% |
| 8 | Slick | 3,097,401 | 2.4% |
| 9 | Popper.js | 2,440,106 | 1.9% |
| 10 | Underscore.js | 2,164,530 | 1.7% |
| 11 | Magnific Popup | 2,062,038 | 1.6% |
| 12 | OwlCarousel2 | 2,011,527 | 1.5% |
| 13 | jQuery Waypoints | 1,820,865 | 1.4% |
| 14 | Moment.js | 1,605,634 | 1.2% |
| 15 | Lightbox | 1,572,971 | 1.2% |
| 16 | Facebook SDK | 1,530,027 | 1.2% |
| 17 | Google Hosted jQuery | 1,502,037 | 1.2% |
| 18 | LazySizes | 1,496,402 | 1.1% |
| 19 | Select2 | 1,405,994 | 1.1% |
| 20 | FancyBox | 1,404,974 | 1.1% |
| 21 | script.aculo.us | 72,902 | 0.06% |
Rows link to each competitor's market share page where one exists. The table lists the 21 most-used technologies; ranks are by website count.