Composer
Composer is an application-level dependency manager for 
PHP that lets developers declare, install, and update external libraries.
It resolves package versions, downloads required files from repositories like Packagist, and generates PSR-4 autoloaders.
According to our data, Composer is the second most popular package manager technology on the web.
It has 48.6% of the package manager market share and is present on 5% of all websites.
- 🏠 Website
- 🔗 Links
- </> Source code
- 🔌 Add-Ons
Wikipedia💸 Pricing
Composer is available for free.
📊 Rankings and Market Share
- Package Managers
- Rank: 2
- Market share: 48.6%
🏆 Composer Awards
- 🥇 Most popular in Germany in the Package Managers category.
- 🥇 Most popular in the United Kingdom in the Package Managers category.
- 🥇 Most popular in France in the Package Managers category.
- 🥇 Most popular in the Netherlands in the Package Managers category.
- 🥇 Most popular in Russia in the Package Managers category.
- 🥇 Most popular in Italy in the Package Managers category.
- 🥇 Most popular in Poland in the Package Managers category.
- 🥇 Most popular in Switzerland in the Package Managers category.
- 🥇 Most popular in Belgium in the Package Managers category.
- 🥇 Most popular in Ukraine in the Package Managers category.
⚡ Sites Using Composer
We have data on 180,171 websites that use Composer package manager technology. Here is a list of some of the top ranked ones.
The highest rated site using Composer is instructure.com.
| # | Website | Rank | Country | Language |
|---|---|---|---|---|
| 1 | #52 | United States | English | |
| 2 | #109 | United States | English | |
| 3 | #159 | United States | English | |
| 4 | #183 | United States | English | |
| 5 |  youradchoices.com |
#311 | English | |
| 6 | #314 | India | English | |
| 7 | #419 | American English | ||
| 8 | United States | English | ||
| 9 | #457 | English | ||
| 10 | #470 | United Kingdom | British English | |
| 11 | #476 | United States | English | |
| 12 | #499 | Croatia | Croatian | |
| 13 | #511 | India | English | |
| 14 | #626 | Russia | Russian | |
| 15 | #699 | English | ||
| 16 | #854 | English | ||
| 17 | #855 | English | ||
| 18 | #940 | Japan | Japanese | |
| 19 | #970 | English | ||
| 20 | #977 | South Africa | English |
📈 Usage Statistics
Most of the sites that use Composer:
- are located in the United States
- have content in English
- use the .com domain extension
- fall into the Business category.
Most of the sites using Composer are from the United States, Germany, and the United Kingdom.
- United States 12.8%
- Germany 11.7%
- United Kingdom 5.6%
- France 5.1%
- Netherlands 3.9%
- Russia 3.8%
- Italy 3.8%
- Spain 3.1%
- Poland 2.6%
- Other 47.6%
Most Composer users speak English, German, or French.
- English 42.7%
- German 11.3%
- French 5.4%
- Spanish 5.1%
- Russian 4.8%
- Dutch 3.8%
- Italian 3.1%
- Portuguese 2.3%
- Polish 2.2%
- Other 19.3%
Composer package manager technology is especially popular on .com, .de, and .org top-level domains.
- .com 31.4%
- .de 8%
- .org 6.5%
- .ru 2.8%
- .nl 2.5%
- .it 2.3%
- .net 2.2%
- .fr 2.2%
- .co.uk 1.9%
- Other 40.2%
The primary market segments for websites utilizing Composer include business, online shopping, and marketing and merchandising.
- Business 17%
- Online Shopping 12%
- Marketing/Merchandising 10.2%
- Education/Reference 9%
- Health 4.6%
- Travel 4.4%
- Internet Services 4%
- Non-Profit/Advocacy/NGO 3.3%
- Entertainment 2.9%
- Other 32.6%
🕵️ Similar Technologies
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💬 Frequently Asked Questions
Where is Composer's headquarters?
Composer is located in Berlin, Germany.
Can I use Composer for free?
Yes, it is a free package manager technology.
It is also open source, and you can find its code on 
GitHub.
Which country uses Composer the most?
The majority of Composer users are from the United States.
Who uses Composer?
According to our data, Composer is used on thousands of sites, including such established ones as instructure.com,
nih.gov, and
irs.gov.
Is Composer used on government websites?
Yes, for example, it is used by nih.gov,
irs.gov, and
parivahan.gov.in. Overall, we found Composer on 509 government sites in the United States.
Do academic institutions use Composer?
Yes, quite a few! In total, we know of 816 academic websites in the United States that use Composer.
How does Composer stack up against its competitors?
Composer is one of the most popular package manager technologies, second only to 
Npm.
👉 See Also
- ✨ Related technologies
🗃️ About This Data
- We evaluate the popularity of technologies based on the number of websites where we detect their usage.
- Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
- This report is based on the analysis of 3,603,958 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.