#Benchmark

WebKit, Google, and Mozilla just released JetStream 3 — the first major overhaul of the benchmark suite since 2019. It drops microbenchmarks in favor of realistic workloads, rewrites WebAssembly scoring, and introduces Dart, Kotlin, and Rust compiled to Wasm.

Three JavaScript runtimes. Three different philosophies. Independent benchmarks across HTTP throughput, cold starts, and async performance tell a clearer story than marketing ever could. Here's the brutally honest breakdown for developers choosing their next server-side JS platform.