🆚 CSS vs. WebAssembly
- 📈 CSS is much more popular than WebAssembly.
- 🌍 CSS is more popular in all countries.
CSS
WebAssemblyType
About
Cascading Style Sheets (CSS) is a stylesheet language used to control the presentation of 
HTML and 
XML documents, defining layout, colors, typography, and responsive behavior across different devices.
It uses a cascading and specificity model to resolve style conflicts, supports reusable rules and selectors, and includes layout systems such as Flexbox and Grid, media queries for responsive design, and features for animations, transformations, and advanced text formatting.
WebAssembly (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.
Headquarters
Popularity
Determined by the number of sites using each technology.
Market share
Popularity by country
Determined by the number of sites detected from each country.
Awards
- 🥇 Most popular in the United States in the Standards category.
- 🥇 Most popular in Japan in the Standards category.
- 🥇 Most popular in the United Kingdom in the Standards category.
- 🥇 Most popular in France in the Standards category.
- 🥇 Most popular in the Netherlands in the Standards category.
- ⬆️ 34th most popular in Poland in the Standards category.
- ⬆️ 34th most popular in Denmark in the Standards category.
- ⬆️ 35th most popular in Brazil in the Standards category.
- ⬆️ 35th most popular in Sweden in the Standards category.
- ⬆️ 36th most popular in the Netherlands in the Standards category.
Popularity by domain category
Determined by the number of sites in each category.
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
YAML
Sass
JSON🗃️ 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 3,375,483 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.