Preline UI on new websites

1. Preline UI appeared on about 170 new sites in the last 30 days.^[1]
2. Nine in ten new Preline UI sites also use Tailwind CSS.

The line is the 7-day average share of new sites that use Preline UI, 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 Preline UI itself changing.^[2][3]

#	Movement	Tool	Share of all sites	Share of UI Library[5]	Bar
1	–	Lucide Icons	16.1%	96.2%
2	–	shadcn/ui	3.2%	19.3%
3	–	Chakra UI	<0.1%	0.2%
4	–	Flowbite	<0.1%	0.1%
5	–	Preline UI	<0.1%	0.1%

All-time shares across the new sites we track: of all of them, and of the sites using any UI Library tool. All 126 in UI Library

Tool	Sites with both	vs all new sites	Bar
Tailwind CSS	472	3.5x

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

103 of the 549 sites using Preline UI are product launches we list individually. The other 446 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one.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.

• Booksmaker.ai booksmaker.ai
• VersionDB versiondb.io
• KeepMD EOB Decoder keepmd.org

Site	Found	Also detected
Court2Court | Türkiye'nin Padel Platformu court2court.app	Oct 15
Booksmaker.ai booksmaker.ai · Italy	Oct 15
HaulFare: Car shipping prices you can actually plan around haulfare.com	Oct 13
Home | DOP dopdev.com	Oct 13
ProxiPlace — La place numérique de la vie locale proxiplace.fr · France	Oct 11
Hive — Sovereign AI compute on hardware you already own irishive.net · Developer Tools	Oct 9
Genesis — Generative UI that ships to production genesis-ui.com · Developer Tools	Oct 9
VersionDB versiondb.io · Marketing · Australia	Oct 8
İşinizi AI otomasyonuyla daha ileri taşıyın | Lakamva lakamva.com · Türkiye	Oct 8
Кедр — CRM для управления стройкой kedr.live · Marketing	Oct 6
KeepMD EOB Decoder keepmd.org · Finance · United States	Oct 6
AI Paralegal Software for U.S. Law Firms | NewClerk newclerk.com	Oct 5

Showing the most recent 12 of 103.

The StackScope API serves all 549 sites using Preline UI, 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. Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. Too few sites state their country plainly for the usual count, so this one also counts single signals: a country domain ending, a phone number (for North America, its area code), a location the site declares in its own page metadata, or a country-specific vendor stack and the page language where they agree and nothing contradicts them. Read these as likely rather than certain.
5. Some products people expect to see here are filed under a related category: CSS Framework, Javascript Library.