Foundation

ZURB, Campbell, California, United States

Foundation is an open-source responsive framework that provides a customizable grid system, a library of UI components (Building Blocks), HTML templates, and JavaScript plugins.

It includes keyboard accessibility, screen-reader support, ARIA attributes, device-adaptive visibility controls, and two types of grids (Flexbox and CSS Grid) to enable advanced layout control.

According to our data, Foundation is the 4th most popular user interface framework on the web.
It has 2.8% of the UI framework market share and is detected on 1.2% of all websites.

💸 Pricing

Foundation is available for free.

Free ✔️Open source

📊 Rankings and Market Share

🏆 Foundation Awards

⚡ Sites Built With Foundation

We have data on 37,579 websites that use the Foundation UI framework. Here is a list of some of the top ranked ones.

The highest rated site using Foundation is instructure.com.

#WebsiteRankCountryLanguage
1 instructure.com #52 United States English
2 sourceforge.net #97 United States English
3 bankofamerica.com #280 American English
4 itunes.apple.com United States American English
5 dagbladet.no #531 Norway Norwegian Bokmål
6 support.apple.com United States American English
7 publi24.ro #752 Romania Romanian
8 in.gov #1,206 United States English
9 wunderground.com #1,255 English
10 rte.ie #1,475 Ireland English
11 justwatch.com #1,547 Germany English
12 ontario.ca #1,580 Canada English
13 ct.gov #1,589 United States English
14 geneanet.org #1,614 English
15 raiplay.it #1,711 Italy Italian
16 poetryfoundation.org #1,941 English
17 reverbnation.com #1,948 English
18 99designs.com #2,105 United States American English
19 developer.apple.com United States English
20 brevo.com #2,187 United States English

📈 Usage Statistics

Most of the sites that use Foundation:

Most of the sites using Foundation are from the United States, Germany, and the United Kingdom.

  • United States 25.9%
  • Germany 8.7%
  • United Kingdom 8.6%
  • Netherlands 5.1%
  • Australia 4.7%
  • Canada 3.6%
  • France 3.5%
  • Italy 2.9%
  • Spain 2.8%
  • Other 34.2%

Most Foundation users speak English, German, or Dutch.

  • English 61.4%
  • German 7.8%
  • Dutch 3.9%
  • French 3.6%
  • Spanish 3.2%
  • Italian 2.2%
  • Portuguese 1.7%
  • Korean 1.5%
  • Japanese 1.4%
  • Other 13.3%

The Foundation UI framework is especially popular on .com, .org, and .de top-level domains.

  • .com 42.8%
  • .org 8.3%
  • .de 5.5%
  • .nl 3.2%
  • .co.uk 3.1%
  • .com.au 2.9%
  • .net 2.1%
  • .it 1.6%
  • .ca 1.6%
  • Other 28.9%

The primary market segments for websites utilizing Foundation include business, marketing and merchandising, and online shopping.

  • Business 18.5%
  • Marketing/Merchandising 11.4%
  • Online Shopping 9.2%
  • Education/Reference 7.3%
  • Travel 4.2%
  • Internet Services 4.1%
  • Non-Profit/Advocacy/NGO 4%
  • Health 3.7%
  • Blogs/Wiki 3.6%
  • Other 34%

🔢 Foundation Versions

The most common version of Foundation is 5.5, used by 15.1% of sites where versions were detected. In addition, 14.1% of sites use Foundation 6.4, and 13.7% use Foundation 6.6.

  • 5.5 15.1%
  • 6.4 14.1%
  • 6.6 13.7%
  • 6.7 13.5%
  • 6.3 12.9%
  • 6.5 11.4%
  • 6.2 6.4%
  • 6.8 4.1%
  • 1 1.8%
  • Other 7%

🕵️ Similar Technologies

These are some of the best Foundation alternatives.

RankName
1
Bootstrap
San Francisco, California, United States

An open-source framework for building responsive, mobile-first websites and web applications with HTML, CSS, and JavaScript, originally developed at Twitter.

FreeOpen source
3
Tailwind CSS
Kitchener, Ontario, Canada

An open-source utility-first framework that provides low-level CSS classes for building user interfaces directly in markup.

FreeOpen source$149+
6
UIKit
Hamburg, Germany

A lightweight and modular front-end framework.

FreeOpen source
7
Bulma
London, United Kingdom

An open source modular CSS framework based on Flexbox.

FreeOpen source
29
Shoelace

A framework-agnostic library of production-ready web user interface components built entirely with native Web Component standards, ensuring consistent design and behavior across any JavaScript framework or none at all.

FreeOpen source

🆚 Compare Alternatives

Compare Foundation to…

💬 Frequently Asked Questions

What is the company behind Foundation?

Foundation is owned by ZURB, Inc., headquartered in Campbell, California, United States.

Is Foundation free?

Yes, it is a free user interface framework.
It is also open source, and you can find its source code on GitHub.

Which country uses Foundation the most?

The majority of Foundation users are from the United States.

Who uses Foundation?

According to our data, Foundation is used on thousands of sites, including such established ones as instructure.com, sourceforge.net, and bankofamerica.com.

Is Foundation used on government websites?

Yes, for example, it is used by in.gov and ct.gov. In total, we found Foundation on 44 government sites in the United States.

Do academic institutions use Foundation?

Yes, quite a few! Overall, we know of 234 academic websites in the United States that use Foundation.

How does Foundation stack up against the competition?

Foundation is one of the most popular user interface frameworks, second only to Bootstrap, jQuery UI, and Tailwind CSS.

What are the alternatives to Foundation?

Alternatives and possible competitors to Foundation may include Bootstrap, UIKit, and Shoelace.

👉 See Also

Statistics were last calculated on .
For details, see our methodology and disclaimer.