Debugging WebAssembly Modules
Utilize browser developer tools and other debugging techniques to inspect and troubleshoot your WASM applications.
Debugging WASM: An Overview
Ever wondered how to peek inside your WebAssembly code while it runs? Debugging WASM lets you find and fix issues in your high-performance modules.
It's a bit different from debugging pure JavaScript, but modern browser developer tools offer powerful capabilities to help you out.
Browser DevTools: Sources Tab
Your browser's developer tools are your best friend for WASM debugging. In Chrome, open DevTools (F12 or Cmd+Option+I).
- Navigate to the Sources tab.
- Look for your WASM module in the file tree, often under
wasm://or similar. - Without source maps, you'll see raw WebAssembly text format – which is very hard to read!
All lessons in this course
- Benchmarking WASM Performance
- Optimizing Rust Code for WASM
- Debugging WebAssembly Modules
- SIMD & Multithreading for Maximum Throughput