WebAssembly (WASM)
Binary instruction format enabling near-native performance for web applications by running compiled code from various programming languages.
Definition
WebAssembly is a low-level assembly-like language that runs at near-native speed in web browsers, allowing developers to compile applications written in languages like C++, Rust, or Go for web deployment. WASM provides performance capabilities previously impossible in browser environments.
This technology enables complex applications like image editors, games, and scientific simulations to run efficiently in browsers without plugins. WebAssembly complements JavaScript rather than replacing it, handling computationally intensive tasks while JavaScript manages UI interactions.
Why It Matters
WebAssembly unlocks new categories of web applications that were previously limited to desktop software, expanding market opportunities for software companies. Complex business applications can now deliver desktop-class performance through browsers.
Organizations can leverage existing codebases written in various languages for web deployment, reducing development costs and time-to-market while delivering superior user experiences that compete with native applications.
Examples in Practice
Adobe Photoshop runs entirely in browsers through WebAssembly, delivering professional image editing capabilities without software downloads or installation requirements.
AutoCAD Web uses WASM to provide full CAD functionality in browsers, enabling engineering teams to collaborate on complex designs without specialized software installations.
Figma employs WebAssembly for rendering complex vector graphics and real-time collaboration features, delivering performance that rivals desktop design applications while maintaining web accessibility.