Lazysizes

Berlin, Germany

Lazysizes is a fast lazy loader library for images, iframes, and scripts/widgets.

According to our data, Lazysizes ranks 26th among the JavaScript libraries we track.
It has 4% of the JavaScript library market share and is present on 3% of all websites.

It appears on 5.7% of all websites in Japan, 3.9% in Italy, and 3.8% in the United Kingdom.

Statistics based on 4M+ analyzed websites. About this data

💸 Pricing

Lazysizes is available for free.

Free ✔️ Open source

📊 Rankings and Market Share

🏆 Lazysizes Awards

⚡ Sites Using Lazysizes

We have data on 118,162 websites that use the Lazysizes JavaScript library. Here is a list of some of the top ranked ones.

The highest rated site using Lazysizes is instructure.com.

#WebsiteRankCountryLanguage
1 instructure.com #43 United States English
2 jotform.com #102 United States English
3 repubblica.it #285 Italy Italian
4 ixl.com #400 United States American English
5 cmoa.jp #477 Japan Japanese
6 sxyprn.com #501 English
7 aajtak.in #637 India Hindi
8 goodreturns.in #645 India American English
9 jutarnji.hr #657 Croatia Croatian
10 therapservices.net #801 United States American English
11 lolipop.jp #831 Japan Japanese
12 beeg.p**n #843 English
13 p**nobrasil.com #914 Brazil Brazilian Portuguese
14 colliderp**n.com #921 Netherlands English
15 botinok.p**n #952 Netherlands Russian
16 happy-p**n.com #957 Netherlands English
17 p**noborshch.com #959 Ukraine Ukrainian
18 box.com #1,082 United States English
19 franceinfo.fr #1,111 France French
20 gamer.com.tw #1,211 Taiwan Chinese

📈 Usage Statistics

Most of the sites that use Lazysizes:

Most of the sites using Lazysizes are from the United States, Japan, and the United Kingdom.

  • United States 20.9%
  • Japan 11.3%
  • United Kingdom 7%
  • Germany 5.9%
  • Italy 4%
  • Russia 3.5%
  • Spain 3.3%
  • France 3.3%
  • Australia 3.1%
  • Other 37.7%

Most Lazysizes users speak English, Japanese, or German.

  • English 51.8%
  • Japanese 9.9%
  • German 5.8%
  • Spanish 5.7%
  • Russian 3.7%
  • French 3.5%
  • Italian 3.2%
  • Portuguese 2.4%
  • Dutch 1.9%
  • Other 12.1%

The Lazysizes JavaScript library is especially popular on .com top-level domains.

  • .com 47.4%
  • .org 4.7%
  • .de 3.8%
  • .jp 2.8%
  • .co.uk 2.7%
  • .ru 2.5%
  • .net 2.4%
  • .it 2.2%
  • .com.au 1.7%
  • Other 29.8%

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

  • Business 16.4%
  • Online Shopping 14.5%
  • Marketing/Merchandising 11%
  • Blogs/Wiki 6.4%
  • Education/Reference 4.7%
  • Travel 4.4%
  • Fashion/Beauty 4%
  • Internet Services 4%
  • Entertainment 3.8%
  • Other 30.8%

🔢 Lazysizes Versions

The most common version of Lazysizes is 5.3, used by 51.9% of sites where versions were detected. In addition, 14% of sites use Lazysizes 5.1, and 12.1% use Lazysizes 5.2.

  • 5.3 51.9%
  • 5.1 14%
  • 5.2 12.1%
  • 4.1 11.3%
  • 4.0 5.6%
  • 2.0 1.8%
  • 3.0 1.3%
  • 8.0 0.7%
  • 1.0 0.4%
  • Other 0.9%

🕵️ Similar Technologies

These are some of the best Lazysizes alternatives.

RankName
18
Vanilla LazyLoad

A lightweight and flexible script that speeds up your web application by delaying the loading of your below-the-fold images, videos and iframes until they enter the viewport.

FreeOpen source
20
Lozad.js
New Delhi, India

Highly performant, light and configurable lazy loader for images and iframes in pure JS with no dependencies.

FreeOpen source
25
Beasties
Edinburgh, United Kingdom

A plugin that inlines your app's critical CSS and lazy-loads the rest.

FreeOpen source
28
Partytown
San Francisco, California, United States

A lazy-loaded library to help relocate resource intensive scripts into a web worker, and off of the main thread.

FreeOpen source
193
iframe-resizer

The iframe-resizer library resizes iframes to fit the size of the content.

FreeOpen source$16+

🆚 Compare Alternatives

Compare Lazysizes to…

💬 Frequently Asked Questions

Where is Lazysizes from?

Lazysizes is from Berlin, Germany.

Can I use Lazysizes for free?

Yes, it is a free JavaScript library.

Which country uses Lazysizes the most?

The majority of Lazysizes users are from the United States.

Who uses Lazysizes?

According to our data, Lazysizes is used on thousands of sites, including such established ones as instructure.com, jotform.com, and repubblica.it.

Is Lazysizes used on government websites?

Overall, we found Lazysizes on 31 government sites in the United States.

Do academic institutions use Lazysizes?

Yes, quite a few! In total, we know of 154 academic websites in the United States that use Lazysizes.

How does Lazysizes stack up against the competition?

Lazysizes is a fairly popular JavaScript library, ranking ahead of 291 other JavaScript libraries we track.

What are the alternatives to Lazysizes?

Alternatives and possible competitors to Lazysizes may include Vanilla LazyLoad, Lozad.js, and Beasties.

🗃️ About This Data