 WebAssembly Core Specification by the W3C WebAssembly Community Group

Primary live specification webassembly.github.io/spec/core/intro/introduction.html

Numeric semantics webassembly.github.io/spec/core/exec/numerics.html ; module text syntax webassembly.github.io/spec/core/text/modules.html . Verified2026-11-03 against official specification; no claim about the latest finalized version or universal browser support. Locators: Introduction, Modules, iadd numeric operation and integer types.