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WebAssembly: Yes, but for What?

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Title: WebAssembly: Yes, but for What?
Authors: Wingo, Andy1 (AUTHOR) wingo@igalia.com
Source: Communications of the ACM. Nov2025, Vol. 68 Issue 11, p50-54. 5p.
Subjects: Source code, Compilers (Computer programs), Binary codes, Application program interfaces, Artificial intelligence, Data security, Cloud computing
Abstract: WebAssembly (Wasm) has proven effective for porting large C and C++ desktop applications to the Web and embedding components such as file handlers, per-pixel processors, and libraries like SQLite. Its strengths lie in use cases that require strong isolation between program components, such as browser plug-ins, virtualization, or security-critical software, while traditional web languages like JavaScript and TypeScript remain better suited for user-facing interfaces. Wasm also shows promise in cloud and confidential computing due to its fast cold-start characteristics, minimal abstraction overhead, and robust memory-safety guarantees, suggesting potential applications in operating-system drivers, isolated modules, or artificial intelligence tasks that handle sensitive data. Overall, the platform’s pattern of success points to environments where isolation, security, and controlled execution are prioritized.
Database: Engineering Source
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  Data: WebAssembly (Wasm) has proven effective for porting large C and C++ desktop applications to the Web and embedding components such as file handlers, per-pixel processors, and libraries like SQLite. Its strengths lie in use cases that require strong isolation between program components, such as browser plug-ins, virtualization, or security-critical software, while traditional web languages like JavaScript and TypeScript remain better suited for user-facing interfaces. Wasm also shows promise in cloud and confidential computing due to its fast cold-start characteristics, minimal abstraction overhead, and robust memory-safety guarantees, suggesting potential applications in operating-system drivers, isolated modules, or artificial intelligence tasks that handle sensitive data. Overall, the platform’s pattern of success points to environments where isolation, security, and controlled execution are prioritized.
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      – SubjectFull: Binary codes
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              Text: Nov2025
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