WebAssembly
W3C, Cambridge, Massachusetts, United StatesWebAssembly (Wasm) is a portable binary instruction format that runs in modern web browsers with near-native performance, enabling frontend coding in languages that were not traditionally used for web interfaces, such as 
C/C++, 
C#, and 
Rust.
It is designed as a low-level compilation target with a compact binary format, fast execution, memory-safe sandboxing, and a stack-based virtual machine. It also integrates with 
JavaScript to access Web APIs and share memory efficiently.
WebAssembly is used in applications that require high performance and low latency, including in-browser image and video editing, casual and asset-heavy games, image recognition, live video augmentation, virtual and augmented reality, and CAD tools.
According to our data, WebAssembly is present on 0.07% of all websites.
- 🏠 Website
- 🔗 Links
- 👨👩👦👦 Community
Wikipedia
Reddit
Stack Overflow📊 Rankings and Market Share
- Standards
- Rank: 38
- Market share: 0.08%
🏆 WebAssembly Awards
- ⬆️ 32nd most popular in Denmark in the Standards category.
- ⬆️ 33rd most popular in Poland in the Standards category.
- ⬆️ 33rd most popular in Brazil in the Standards category.
- ⬆️ 33rd most popular in the Czech Republic in the Standards category.
- ⬆️ 34th most popular in the Netherlands in the Standards category.
- ⬆️ 34th most popular in Russia in the Standards category.
- ⬆️ 35th most popular in Sweden in the Standards category.
- ⬆️ 35th most popular in Italy in the Standards category.
- ⬆️ 36th most popular in India in the Standards category.
- ⬆️ 36th most popular in Finland in the Standards category.
⚡ Sites Using WebAssembly
We have data on 2,419 websites that use WebAssembly. Here is a list of some of the top ranked ones.
The highest rated site using WebAssembly is 
instagram.com.
| # | Website | Rank | Country | Language |
|---|---|---|---|---|
| 1 | instagram.com |
#5 | United States | English |
| 2 |  x.com |
#12 | English | |
| 3 | #479 | English | ||
| 4 | #680 | Netherlands | English | |
| 5 | #769 | Belize | English | |
| 6 | #817 | Costa Rica | English | |
| 7 | #833 | English | ||
| 8 |  quillbot.com |
#1,427 | United States | English |
| 9 | #1,438 | English | ||
| 10 | #1,624 | Netherlands | English | |
| 11 | #2,392 | English | ||
| 12 | help.instagram.com |
United States | English | |
| 13 |  chromewebstore.google.com |
United States | American English | |
| 14 | #2,749 | English | ||
| 15 | #3,939 | Canada | English | |
| 16 | #4,679 | Vietnam | Vietnamese | |
| 17 | #4,813 | American English | ||
| 18 | #4,880 | Netherlands | English | |
| 19 | #5,100 | American English | ||
| 20 | #5,107 | English |
📈 Usage Statistics
Most of the sites that use WebAssembly:
- 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 WebAssembly are from the United States, Germany, and the Netherlands.
- United States 21.8%
- Germany 7.6%
- Netherlands 6.8%
- United Kingdom 5.4%
- Russia 4.3%
- Denmark 4.1%
- Poland 4.1%
- Brazil 3.8%
- Sweden 3.7%
- Other 38.4%
Most WebAssembly users speak English, German, or Spanish.
- English 67.5%
- German 4.2%
- Spanish 3.1%
- Portuguese 2.9%
- Russian 2.6%
- Polish 2.3%
- Danish 2.1%
- Dutch 1.8%
- French 1.6%
- Other 11.9%
WebAssembly is especially popular on .com top-level domains.
- .com 44.9%
- .net 3.8%
- .de 3.4%
- .org 2.9%
- .dk 2.9%
- .nl 2.6%
- .pl 2.4%
- .se 2.2%
- .it 2.1%
- Other 32.8%
The primary market segments for websites utilizing WebAssembly include business, online shopping, and marketing and merchandising.
- Business 14.1%
- Online Shopping 14.1%
- Marketing/Merchandising 11.1%
- Fashion/Beauty 5.6%
- Pornography 5.4%
- Software/Hardware 4.7%
- Internet Services 4.2%
- Education/Reference 3.8%
- Games 3.1%
- Other 33.9%
🕵️ Similar Technologies
These are some of the best WebAssembly alternatives.
CSS
HTML
JSON
YAML🆚 Compare Alternatives
Compare WebAssembly to…
- 🕵️ Similar standards
- ⭐ Market leaders
- 💡 More alternatives
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Open Graph
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XFN💬 Frequently Asked Questions
What is the company behind WebAssembly?
WebAssembly is owned by World Wide Web Consortium, Inc., headquartered in Cambridge, Massachusetts, United States.
Which country uses WebAssembly the most?
The majority of WebAssembly users are from the United States.
Who uses WebAssembly?
According to our data, WebAssembly is used on thousands of sites, including instagram.com, x.com, and quillbot.com.
Is WebAssembly used on government websites?
In total, we found WebAssembly on 3 government sites in the United States.
How does WebAssembly stack up against its competitors?
WebAssembly is a moderately popular standard, ranking ahead of 16 other standards we track.
👉 See Also
- ✨ Related technologies
- 💼 All technologies from W3C
Blazor
Dioxus
Leptos🗃️ 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 3,531,690 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.