WASM vs Browser JavaScript Benchmark

Compare MicroQuickJS WASM interpreter performance against your browser's native JIT-compiled JavaScript engine.

Version: 20241224_v10 Engine: 168KB WASM Browser: Detecting...

Console Log

Preparing benchmarks...

Browser JavaScript

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V8 / SpiderMonkey / JSC

WASM (MicroQuickJS)

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Interpreter, 168KB
Calculating ratio...

Per-Test Comparison

Test Browser (ms) WASM (ms) Ratio

Performance Factors

  • Interpreter vs JIT - MicroQuickJS interprets bytecode; browser engines compile to native machine code
  • WASM call overhead - Each JS-to-WASM boundary crossing adds latency
  • Memory model - WASM uses linear memory with bounds checking on every access
  • No runtime optimization - Interpreters cannot optimize hot paths at runtime
  • Engine size - MicroQuickJS: 168KB, V8: ~10MB, SpiderMonkey: ~5MB