Learn Webgpu - 10 Code Examples & CST Typing Practice Test
WebGPU is a modern, low-level graphics and compute API for the web that provides high-performance access to GPU hardware. It is the successor to WebGL, offering better performance, compute shaders, modern GPU features, and a more efficient programming model inspired by Vulkan, Metal, and Direct3D 12.
Learn WEBGPU with Real Code Examples
Updated Nov 25, 2025
Code Sample Descriptions
Simple WebGPU Triangle
# webgpu/demo/triangle.js
async function initWebGPU() {
const canvas = document.getElementById('canvas');
const adapter = await navigator.gpu.requestAdapter();
const device = await adapter.requestDevice();
// Setup GPU pipeline and render triangle
const context = canvas.getContext('webgpu');
// ... pipeline, buffers, shaders, rendering logic ...
}
initWebGPU();
A basic WebGPU program in JavaScript that renders a colored triangle to a canvas.
WebGPU Clear Color
# webgpu/demo/clear_color.js
async function clearColor() {
const canvas = document.getElementById('canvas');
const adapter = await navigator.gpu.requestAdapter();
const device = await adapter.requestDevice();
const context = canvas.getContext('webgpu');
context.configure({
device: device,
format: 'bgra8unorm'
});
const commandEncoder = device.createCommandEncoder();
const textureView = context.getCurrentTexture().createView();
const renderPass = commandEncoder.beginRenderPass({
colorAttachments: [{
view: textureView,
clearValue: { r: 0, g: 0, b: 1, a: 1 },
loadOp: 'clear',
storeOp: 'store'
}]
});
renderPass.end();
device.queue.submit([commandEncoder.finish()]);
}
clearColor();
Clears the canvas with a solid color using WebGPU.
WebGPU Animated Triangle
# webgpu/demo/animated_triangle.js
async function animateTriangle() {
const canvas = document.getElementById('canvas');
const adapter = await navigator.gpu.requestAdapter();
const device = await adapter.requestDevice();
const context = canvas.getContext('webgpu');
context.configure({device: device, format: 'bgra8unorm'});
let angle = 0;
function frame() {
angle += 0.01;
// update transformation matrices for rotation
// draw triangle
requestAnimationFrame(frame);
}
frame();
}
animateTriangle();
Animates a triangle rotating using WebGPU.
WebGPU Rectangle
# webgpu/demo/rectangle.js
async function drawRectangle() {
const canvas = document.getElementById('canvas');
const adapter = await navigator.gpu.requestAdapter();
const device = await adapter.requestDevice();
const context = canvas.getContext('webgpu');
// Create vertex buffer for rectangle
// Setup pipeline and render rectangle
}
drawRectangle();
Draws a rectangle using WebGPU pipeline and vertex buffer.
WebGPU Compute Shader
# webgpu/demo/compute.js
async function runCompute() {
const adapter = await navigator.gpu.requestAdapter();
const device = await adapter.requestDevice();
// Create buffer, compute pipeline, and dispatch
}
runCompute();
Executes a simple compute shader using WebGPU.
WebGPU Texture Load
# webgpu/demo/texture.js
async function loadTexture() {
const canvas = document.getElementById('canvas');
const adapter = await navigator.gpu.requestAdapter();
const device = await adapter.requestDevice();
const context = canvas.getContext('webgpu');
// Load image texture and render it
}
loadTexture();
Loads an image texture and renders it using WebGPU.
WebGPU Indexed Triangle
# webgpu/demo/indexed_triangle.js
async function drawIndexed() {
const canvas = document.getElementById('canvas');
const adapter = await navigator.gpu.requestAdapter();
const device = await adapter.requestDevice();
const context = canvas.getContext('webgpu');
// Setup vertex buffer, index buffer, and render pipeline
}
drawIndexed();
Draws a triangle using an index buffer.
WebGPU Multiple Triangles
# webgpu/demo/multi_triangles.js
async function drawMultiple() {
const canvas = document.getElementById('canvas');
const adapter = await navigator.gpu.requestAdapter();
const device = await adapter.requestDevice();
const context = canvas.getContext('webgpu');
// Setup multiple vertex buffers for triangles and render
}
drawMultiple();
Renders multiple triangles with different colors.
WebGPU Depth Test Example
# webgpu/demo/depth_test.js
async function depthTest() {
const canvas = document.getElementById('canvas');
const adapter = await navigator.gpu.requestAdapter();
const device = await adapter.requestDevice();
const context = canvas.getContext('webgpu');
// Setup depth buffer and render objects
}
depthTest();
Demonstrates depth testing with WebGPU.
WebGPU Offscreen Rendering
# webgpu/demo/offscreen.js
async function offscreenRender() {
const canvas = document.getElementById('canvas');
const adapter = await navigator.gpu.requestAdapter();
const device = await adapter.requestDevice();
const context = canvas.getContext('webgpu');
// Create offscreen texture, render, then copy to canvas
}
offscreenRender();
Renders to a texture offscreen and displays it.
Frequently Asked Questions about Webgpu
What is Webgpu?
WebGPU is a modern, low-level graphics and compute API for the web that provides high-performance access to GPU hardware. It is the successor to WebGL, offering better performance, compute shaders, modern GPU features, and a more efficient programming model inspired by Vulkan, Metal, and Direct3D 12.
What are the primary use cases for Webgpu?
High-performance 3D rendering in browser. GPU compute tasks (ML inference, physics, simulations). Game engines built for WebGPU. Scientific visualization and real-time data graphics. Running ML frameworks like TensorFlow.js with WebGPU backend
What are the strengths of Webgpu?
Much faster than WebGL for modern rendering. Supports GPU compute, not only graphics. Memory-efficient explicit GPU control. Unified API across browsers + native runtimes. Best choice for browser-side ML workloads
What are the limitations of Webgpu?
Complexity is higher than WebGL. Requires learning WGSL shader language. Limited debugging tools compared to native engines. Not supported in older browsers or older hardware. Learning curve similar to Vulkan/Metal APIs
How can I practice Webgpu typing speed?
CodeSpeedTest offers 10+ real Webgpu code examples for typing practice. You can measure your WPM, track accuracy, and improve your coding speed with guided exercises.