Yesterday Amazon released llrt, their own JS runtime.
If I'm counting correctly, that makes 14+ JS Runtimes for JavaScript
→ Node.js (V8)
→ Deno (V8)
→ Bun (JavaScript core - webkit's engine)
→ Workerd (Cloudflare, V8)
→ llrt (Amazon, V8)
→ WinterJS (Wasmer, Spider…