Performance of WebAssembly runtimes in 2026
Summary
A detailed benchmark of WebAssembly runtimes (WAVM, Wasmtime, Wasmer, WasmEdge, WAMR, wasm2c, Wazero, Bun, Node, etc.) using libsodium cryptographic workloads across 2024–2026. The article shows that some runtimes approach native performance, with wide_arithmetic offering substantial speedups for crypto, and it emphasizes that runtime choice and feature support heavily influence outcomes.