Nacl-web-plug-in ●

| Feature | NaCl / PNaCl (Legacy) | WebAssembly (Wasm) (Modern Standard) | | :--- | :--- | :--- | | | Browser sandbox for running native (C/C++) code; runs a subset of x86/ARM/MIPS code | Binary instruction format for a stack-based virtual machine; a compilation target for high-level languages like C/C++, Rust, and Go | | Portability | PNaCl provided portability by compiling to a portable bitcode format; still required Chrome | Built on open standards and supported by all major browsers (Chrome, Firefox, Safari, Edge) | | Integration | Required a dedicated plugin; interaction via messages with JavaScript | Seamlessly integrated with JavaScript and the Web APIs; no plugin needed | | Maturity | Discontinued; development and security support ceased in 2021 | Active and mature; supported by a large ecosystem of tools, compilers, and community resources | | Performance | Near-native speeds, as code runs directly on the processor in a sandbox | Near-native speeds, with ongoing optimizations for features like SIMD and multithreading | | Security | Strong sandbox, but as a discontinued technology, it no longer receives security patches | Designed with security as a core principle; executes in a safe, sandboxed environment separate from the host system |

Google declared WebAssembly as the official successor, halting future feature development on NaCl. nacl-web-plug-in

While NaCl promised to revolutionize web gaming, video editing, and complex enterprise software, it ultimately became a transitional technology. Today, it has been completely phased out in favor of modern, open web standards like WebAssembly (Wasm). | Feature | NaCl / PNaCl (Legacy) |