Node.js vs Bun vs Deno 2 in 2026: Which JavaScript Runtime Should You Actually Use? (opens in new tab)

In 2026, the JavaScript runtime landscape looks very different from just two years ago. Trigger.dev switched to Bun and reported a 5x throughput improvement on identical hardware. Anthropic acquired Bun and uses it in Claude Code's CLI. Deno 2 shipped real Node.js compatibility, bringing enterprise teams on board. And Node.js 24 quietly added native TypeScript execution alongside a production-ready built-in test runner. The question developers now face is not "should I switch?" - it is "which...