Slinky on new websites

1. Slinky appeared on about 70 new sites in the last 30 days.^[1]
2. Almost all new Slinky sites also use Bootstrap.

The line is the 7-day average share of new sites that use Slinky, day by day for the last 90 days and weekly before that (left of the dashed line). It starts at our first detection. The shaded areas were measured against a different set of sites, so the line can step there without Slinky itself changing.^[2][3]

#	Movement	Tool	Share of all sites	Share of category[4]	Bar
1	–	jQuery	14.2%	34.5%
2	–	React Router	6.6%	16.2%
3	–	Motion	6.0%	14.6%
4	–	TanStack Router	4.4%	10.7%
5	–	Swiper	3.4%	8.3%
…
318	▲26	Slinky	<0.1%	<0.1%

All-time shares across the new sites we track: of all of them, and of the sites using any Javascript Library tool. Among September launches it ranked #316 in Javascript Library, up from #342 in August. All 1547 in Javascript Library

Tool	Sites with both	vs all new sites	Bar
OwlCarousel	99	132x
Isotope	129	92x
Masonry	129	63x
slick	69	48x
Modernizr	103	27x

Tools that turn up far more often on Slinky sites than on new sites in general, and how many times as common each one is there.

1 of the 154 sites using Slinky are product launches we list individually. The other 153 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. They are included in the StackScope API and in Stackdar alerts.

Site	Found	Also detected
Charred Oak Kentucky Bourbon — Vanilla Caramel Depth bourbontop.com	Aug 15

The StackScope API serves all 154 sites using Slinky, filterable and exportable, from £15 a month.

1. These figures cover websites that went live since April 2026, not the web as a whole.
2. Grey: before 8 July 2026, we only tracked launches from launch platforms. From that date we crawl the wider web as well, so the share is measured against a much larger set of sites. For one continuous measure, view launch platforms only.
3. Amber: 8 July to 10 September 2026, before we improved our infrastructure to 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 10 September. We record each site as it was when we found it.
4. Some products people expect to see here are filed under a related category: UI Library.