Bun vs Node.js in 2026: Bun 1.4 vs Node 24 and 26, Benchmarked

Bun 1.4, a Rust-based runtime, bundler, and package manager using JavaScriptCore, shows Node.js 26 compatibility, simplifying runtime swaps. Benchmarks compared Bun 1.4.3 against Node.js 24.22 and 26.12 using Hono and Express. Separately, linter tests on a Next.js codebase revealed Oxlint 1.88 is 81x faster than ESLint, running in 118 ms versus 9.6 seconds. Biome 2.5 performed similarly at 131 ms, though rule parity and type-aware capabilities remain key considerations for migration.