How many companies use Bootstrap?

TechLeads currently detects Bootstrap on 10,240,147 websites. HTTP Archive's monthly crawl, a separate dataset, detected it on 12,662,985 pages in September 2026.

Who are Bootstrap's biggest competitors?

By number of websites, the largest UI frameworks technologies besides Bootstrap are Tailwind CSS (1,469,184), Animate.css (967,962), UIKit (538,361), Radix UI (380,282), ZURB Foundation (325,985).

Which companies use Bootstrap?

Websites using Bootstrap include tinyurl.com, arxiv.org, moz.com, files.fm, cutt.ly, apache.org. The full list of 10,240,147 websites can be exported as a CSV for $29.

Bootstrap market share and customers

As of October 8, 2026, Bootstrap is used by 10,240,147 websites in the TechLeads index: 67.6% of all UI frameworks detections, the 1st most-used of 77 UI frameworks technologies.

10,240,147

websites using Bootstrap

67.6%

share of UI frameworks

of 77 in UI frameworks

Cite this data

Quoting these numbers? Credit TechLeads with a link to this page.

Citation

TechLeads. "Bootstrap Customers and Market Share." Data as of October 8, 2026. https://techleads.fyi/technology/bootstrap/market-share

HTML link

<a href="https://techleads.fyi/technology/bootstrap/market-share">Bootstrap market share (TechLeads data)</a>

Bootstrap vs competitors in UI frameworks

Websites using each technology in the TechLeads index, and its share of all UI frameworks detections.

#	Technology	Websites	Share
1	Bootstrap	10,240,147	67.6%
2	Tailwind CSS	1,469,184	9.7%
3	Animate.css	967,962	6.4%
4	UIKit	538,361	3.6%
5	Radix UI	380,282	2.5%
6	ZURB Foundation	325,985	2.2%
7	shadcn/ui	249,470

Bootstrap usage over time

In HTTP Archive's monthly crawl of public websites, Bootstrap was detected on 12,662,985 pages in September 2026, down 14.7% from a year earlier (peak: 17,144,211). Among the 1,000 most-visited sites, it appeared on 307. HTTP Archive is a separate dataset from the TechLeads index, so its numbers are not added to ours.

Same month, other UI Frameworks technologies in HTTP Archive: Tailwind CSS 3,462,723, Animate.css 1,731,531, Radix UI 990,535, ZURB Foundation 748,793, shadcn/ui 642,546.

Bootstrap customers by country

Based on country-code domains (such as .de or .co.uk); websites on .com and other generic domains are not assigned a country.

US25,534
GB7,929
DE6,744
FR4,709
IT3,914
BR2,141
AU2,017
ES1,799
CA1,454
IN967

Companies using Bootstrap

tinyurl.com
arxiv.org
moz.com
files.fm
cutt.ly
apache.org
sciencedaily.com
telegram.org
globalnews.ca
globalwellnessinstitute.org · Global Wellness Institute
variety.com · Variety Australia
challonge.com

See all 10,240,147 websites using Bootstrap or download the full list as a CSV for $29.

How these numbers are calculated

TechLeads scans public websites and detects Bootstrap from signals in the page HTML, scripts, cookies, HTTP headers and DNS records. Market share is Bootstrap's website count divided by the website counts of all UI frameworks technologies we track; a site using two UI frameworks tools counts for both. Counts were last refreshed on October 8, 2026 and update daily.

FAQ

Bootstrap accounts for 67.6% of UI frameworks detections in the TechLeads index (10,240,147 websites), which makes it the 1st most-used of 77 UI frameworks technologies we track.