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Native GPU traces for web apps. WebGL and WebGPU

23 starsSwift

Native WebGPU / WebGL Profiler for Mac

by ozaiworld·Mar 7, 2026·1 point·0 comments
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AI Analysis

●●SolidWizardryNiche Gem

Xcode GPU frame debugging for WebGL/WebGPU—finally fills the native profiler gap.

Strengths
  • •Automates WebKit/Chrome GPU trace capture with Metal System Trace output in Xcode
  • •Supports both WebGL frame replay and WebGPU timelines with swappable runtimes
  • •Handles iframe-blocked sites via in-page WebGL injection mode
Weaknesses
  • •macOS-only; Windows and Linux developers cannot use this tool
  • •Requires initial WebKit build which is slow, raising onboarding friction
Target Audience

Web graphics developers on macOS using WebGPU or WebGL

Similar To

Xcode GPU Frame Debugger · Chrome DevTools GPU Profiler · RenderDoc

Post Description

I hacked together a tool to inspect the GPU pipeline for any WebGPU / WebGL app in Xcode.

Xcode's native GPU debugger is awesome and I really miss it when building web apps :)

https://developer.apple.com/documentation/Xcode/Metal-debugg...

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