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Wasm Emscripten

Category: Engineering  ·  Sub-category: engineering-misc  ·  Last updated:
WebAssembly with Emscripten skill for C/C++ to WASM compilation. Use when compiling C/C++ to WebAssembly with emcc, configuring EXPORTED_FUNCTIONS, understanding the WASM memory model, using Asyncify for async C code, debugging .wasm with browser devtools or wasm-opt, or targeting WASI vs browser environments. Activates on queries about Emscripten, emcc, WebAssembly from C/C++, WASM memory model, Asyncify, EXPORTED_FUNCTIONS, WASI, or wasm-opt.

What this skill does

Wasm Emscripten is a community-contributed Claude Code skill in the engineering-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/wasm-emscripten/ and loads when your prompt matches the skill's trigger.

When to invoke it: Use when compiling C/C++ to WebAssembly with emcc, configuring EXPORTED_FUNCTIONS, understanding the WASM memory model, using Asyncify for async C code, debugging .wasm with browser devtools or wasm-opt, or targeting WASI vs browser environments.

Who uses this skill

The Wasm Emscripten Claude Code skill is built for software engineers, backend developers, full-stack teams, and technical leads building and maintaining production systems. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 70,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).

How to install

Free

Manual install (2 steps)

mkdir -p ~/.claude/skills/wasm-emscripten
curl -L https://claudskills.com/skills/wasm-emscripten/SKILL.md \
  -o ~/.claude/skills/wasm-emscripten/SKILL.md

Or just download SKILL.md directly and drop it into ~/.claude/skills/wasm-emscripten/. Claude Code auto-discovers it on next session.

Skills live at ~/.claude/skills/wasm-emscripten/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\wasm-emscripten\SKILL.md on Windows. See the full install guide for step-by-step instructions.

Pro

One-click install via the desktop app

The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.

Pro

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See pricing → Download desktop app

Attribution & license

Cite this skill

If you reference this skill in a blog post, paper, or documentation, you can cite it as:

APA
emscripten-core. (2026). Wasm Emscripten [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/wasm-emscripten/
BibTeX
@misc{wasm-emscripten-2026,
  author    = {emscripten-core},
  title     = {Wasm Emscripten [Claude Code skill]},
  year      = {2026},
  publisher = {ClaudSkills},
  url       = {https://claudskills.com/skills/wasm-emscripten/}
}

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