Koa
Koa is an expressive HTTP middleware framework for Node.js using ES2017 async functions.
Designed by the team behind Express, it offers a modular architecture, allowing developers to compose middleware functions for routing, error handling, and context management, providing fine-grained control over the request-response cycle.
According to our data, Koa ranks 46th among the backend frameworks we track.
It has 0.01% of the backend framework market share and is detected on 0.001% of all websites.
- 🏠 Website
- </> Source code
- 👨👩👦👦 Community
Stack Overflow💸 Pricing
Koa is available for free.
📊 Rankings and Market Share
- Backend Frameworks
- Rank: 46
- Market share: 0.01%
⚡ Sites Built With Koa
We have data on 45 websites that use the Koa backend framework. Here is a list of some of the top ranked ones.
The highest rated site using Koa is prisjakt.nu.
| # | Website | Rank | Country | Language |
|---|---|---|---|---|
| 1 | #20,593 | Sweden | Swedish | |
| 2 | #26,400 | English | ||
| 3 | #31,978 | Norway | Norwegian Bokmål | |
| 4 | #41,326 | Sweden | French | |
| 5 | #65,539 | United Kingdom | British English | |
| 6 | #191,498 | English | ||
| 7 | #230,693 | United States | English | |
| 8 | #258,376 | English | ||
| 9 | #268,832 | English | ||
| 10 | #290,722 | Denmark | Danish | |
| 11 | #310,385 | New Zealand | English | |
| 12 | #342,369 | Sweden | Swedish | |
| 13 | #447,881 | English | ||
| 14 | #505,399 | South Africa | English | |
| 15 | #592,757 | Germany | German | |
| 16 | #649,927 | United Kingdom | English | |
| 17 | #831,107 | English | ||
| 18 | #853,884 | English | ||
| 19 | #874,466 | China | Chinese | |
| 20 | #891,427 | English |
📈 Usage Statistics
Most of the sites that use Koa:
- are located in the United States
- have content in English
- use the .com domain extension
- fall into the Marketing/Merchandising category.
Most of the sites using Koa are from the United States, Sweden, and the United Kingdom.
- United States 30.8%
- Sweden 15.4%
- United Kingdom 11.5%
- China 7.7%
- Netherlands 7.7%
- Denmark 3.8%
- Germany 3.8%
- Italy 3.8%
- Kazakhstan 3.8%
- Other 11.7%
Most Koa users speak English or Swedish.
- English 74.4%
- Swedish 7%
- Russian 2.3%
- German 2.3%
- Italian 2.3%
- French 2.3%
- Dutch 2.3%
- Chinese 2.3%
- Danish 2.3%
- Other 2.5%
The Koa backend framework is especially popular on .com and .org top-level domains.
- .com 51.1%
- .org 11.1%
- .co.uk 4.4%
- .nu 4.4%
- .nl 2.2%
- .network 2.2%
- .se 2.2%
- .dk 2.2%
- .kz 2.2%
- Other 18%
The primary market segments for websites utilizing Koa include marketing and merchandising, business, and online shopping.
- Marketing/Merchandising 30%
- Business 25%
- Online Shopping 15%
- Education/Reference 10%
- Health 10%
- Blogs/Wiki 5%
- Content Server 5%
🕵️ Similar Technologies
These are some of the best Koa alternatives.
Express
Sapper🆚 Compare Alternatives
Compare Koa to…
- 🕵️ Similar frameworks
- ⭐ Market leaders
- 💡 Featured alternatives
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Ruby on Rails
Laravel
Nuxt
Next.js💬 Frequently Asked Questions
Is Koa free?
Yes, it is a free backend framework.
Moreover, it is an open source solution and its code can be found on 
GitHub.
Which country uses Koa the most?
The majority of Koa users are from the United States.
Who uses Koa?
According to our data, Koa is used on at least 45 sites, including such established ones as prisjakt.nu,
haokan.mobi, and
prisjakt.no.
How does Koa stack up against the competition?
Koa is a moderately popular backend framework, ranking ahead of 21 other backend frameworks we track.
👉 See Also
- ✨ Related Technologies
Node.js