Bringing the Web up to Speed with WebAssembly
Official specification, reference interpreter, and test suite for the WebAssembly binary instruction format.
What is Bringing the Web up to Speed with WebAssembly?
WebAssembly/spec is the official repository containing the WebAssembly specification, a reference interpreter, and the official test suite. It defines the standard binary instruction format for a stack-based virtual machine, enabling high-performance applications on the web and beyond. The project provides the authoritative technical foundation for all WebAssembly implementations.
Compiler engineers, VM implementers, toolchain developers, and specification writers who need to understand, implement, or test against the WebAssembly standard.
It offers the single source of truth for WebAssembly, ensuring consistency and correctness across diverse implementations through a formal spec, reference interpreter, and comprehensive test suite.
Overview
WebAssembly specification, reference interpreter, and test suite.
Use Cases
Best For
- Implementing a new WebAssembly runtime or virtual machine
- Developing compilers that target WebAssembly
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