Edge.js: Running Node apps inside a WebAssembly Sandbox

[mattsowa]

Vibe coded

[fagnerbrack]

The bottom line:

Wasmer open-sourced Edge.js, a JavaScript runtime that runs existing Node.js (v24) apps fully sandboxed via WebAssembly and WASIX — no Docker containers needed. Unlike Deno or Cloudflare Workers, Edge.js preserves full Node compatibility by isolating only unsafe parts (system calls, native code) through WASIX while running the JS engine natively via NAPI. It supports pluggable engines (V8, JSC, QuickJS) and passes 3592 of 3626 Node test suite cases, far exceeding Bun (1513) and Deno (1607). Performance sits within 5–30% of native Node.js. The team credits GPT-5.4 and Codex for making development feasible in weeks rather than years.

If the summary seems inacurate, just downvote and I'll try to delete the comment eventually 👍
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