WESL
A community-driven superset of WGSL adding module imports, conditional compilation, and packaging for WebGPU shaders.
What is WESL?
WESL is a community-standard superset of the WebGPU Shading Language (WGSL) that adds enhancements like module imports, conditional compilation, and packaging support. It solves the problem of fragmented, project-specific WGSL tooling by providing a shared set of definitions that enable reusable shader libraries and better development workflows.
Graphics and GPU compute developers working with WebGPU who need better code organization, conditional shader logic, and reusable shader components across projects.
Developers choose WESL because it offers practical, community-vetted enhancements to WGSL that are immediately useful, while maintaining full compatibility with WebGPU engines and serving as a testing ground for future WGSL standard proposals.
Overview
A portable and modular superset of WGSL
Use Cases
Best For
- Organizing complex WebGPU shaders across multiple files
- Building reusable shader libraries for distribution via npm or crates.io
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