Babylon.js Versus PlayCanvas

PlayCanvas 62,178 (engine 2.22.4, MIT, 16,928 stars) is closest to Babylon.js 89,603 in ambition: a complete, web-native game engine on WebGL 2 and WebGPU, open-sourced in 2014 and owned by Snap Inc. since 2017. The difference is where you build. Babylon.js is code-first, with its editors as helpers (Inspector and Tools); PlayCanvas centers on its browser Editor, a collaborative scene editor that publishes to PlayCanvas hosting or a download, free for public projects and $15 a month (Personal) or $50 per seat a month (Organization) for private ones, as Godot and PlayCanvas noted. Code-first use works too, through the npm 2,036 package, @playcanvas/react (0.11.7) or HTML custom elements in @playcanvas/web-components (0.25.0), and the engine treats 3D Gaussian splats as first-class content.

PlayCanvas starts heavier: a one-box app bundled to 1,993,959 bytes (517,699 gzipped), since the engine barely tree-shakes, against Babylon's 351,593 for npm Packages's scene and 1,132,483 for the whole store feature set of The Three.js Version. PlayCanvas had 77,790 npm downloads in the week to 24 September 2026, a fifth of @babylonjs/core. For BookNest, whose store is built in code and reviewed in Git 1,932 , Babylon.js fits better; a team of designers who want to lay out shops visually would find PlayCanvas's Editor the faster path.

Babylon.js and PlayCanvas compared on minimal bundle size, weekly npm downloads and GitHub starsHTMLLive

<!doctype html>
<style>
  body { margin: 0; background: #f7f3ec; font: 13px system-ui, sans-serif; color: #333; }
  canvas { width: 100%; max-width: 600px; height: 340px; display: block; touch-action: none; outline: none; }
</style>
<canvas id="view"></canvas>
<script src="https://cdn.jsdelivr.net/npm/babylonjs@9.28.0/babylon.js"></script>
<script src="https://cdn.jsdelivr.net/npm/babylonjs-gui@9.28.0/babylon.gui.min.js"></script>
<script>
// A small 3D bar chart: boxes on a floor, GUI labels under and above them
function createChart(canvas, { radius = 12, target = new BABYLON.Vector3(0, 1.2, 0), alpha = -Math.PI / 2 } = {}) {
  const engine = new BABYLON.Engine(canvas, true);
  const scene = new BABYLON.Scene(engine);
  scene.clearColor = BABYLON.Color4.FromHexString('#f7f3ecff');
  const camera = new BABYLON.ArcRotateCamera('cam', alpha, 1.25, radius, target, scene);
  camera.attachControl(canvas, true);
  new BABYLON.HemisphericLight('sky', new BABYLON.Vector3(0.4, 1, -0.7), scene);
  const ui = BABYLON.GUI.AdvancedDynamicTexture.CreateFullscreenUI('ui');
  const text = (anchor, value, offsetY, { size = 11, color = '#333', bold = false } = {}) => {
    const block = new BABYLON.GUI.TextBlock('', value);
    Object.assign(block, { color, fontSize: size, resizeToFit: true, fontWeight: bold ? 'bold' : 'normal' });
    ui.addControl(block);
    block.linkWithMesh(anchor);
    block.linkOffsetY = offsetY;
    return block;
  };
  const bar = (x, height, hex, top, bottom, z = 0, width = 0.8) => {
    const box = BABYLON.MeshBuilder.CreateBox('bar', { width, depth: width, height: Math.max(height, 0.02) }, scene);
    box.position.set(x, Math.max(height, 0.02) / 2, z);
    box.material = new BABYLON.StandardMaterial(hex, scene);
    box.material.diffuseColor = BABYLON.Color3.FromHexString(hex);
    const head = new BABYLON.TransformNode('head', scene);
    head.position.set(x, height, z);
    const foot = new BABYLON.TransformNode('foot', scene);
    foot.position.set(x, 0, z);
    if (top) text(head, top, -14, { bold: true });
    if (bottom) text(foot, bottom, 22);
    return box;
  };
  const title = (value) => {
    const block = new BABYLON.GUI.TextBlock('', value);
    Object.assign(block, { color: '#555', fontSize: 14, height: '24px', top: '8px', verticalAlignment: 0 });
    ui.addControl(block);
  };
  engine.runRenderLoop(() => scene.render());
  addEventListener('resize', () => engine.resize());
  return { engine, scene, camera, ui, bar, text, title };
}

const { bar, text, title, scene } = createChart(document.getElementById('view'), { radius: 12.5, target: new BABYLON.Vector3(0, 1.3, 0) });
title('Babylon.js 9.28 (blue) and PlayCanvas 2.22 (red), September 2026');
const METRICS = [
  ['bundle, gzipped', 351593, 517699, (v) => `${(v / 1000).toFixed(0)} KB`],
  ['npm per week', 388000, 77790, (v) => `${(v / 1000).toFixed(0)} k`],
  ['GitHub stars', 26113, 16928, (v) => v.toLocaleString('en')],
];
METRICS.forEach(([name, babylon, playcanvas, format], i) => {
  const x = (i - 1) * 3.9, max = Math.max(babylon, playcanvas);
  bar(x - 0.5, 2.6 * babylon / max, '#1f5f8b', format(babylon));
  bar(x + 0.5, 2.6 * playcanvas / max, '#b5452f', format(playcanvas));
  const foot = new BABYLON.TransformNode('foot', scene);
  foot.position.x = x;
  text(foot, name, 22, { size: 12 });
});
/* The real difference is where you build: Babylon.js is code-first, reviewed in Git, while
   PlayCanvas centers on its collaborative browser Editor (free for public projects, $15 a month
   Personal, $50 per seat Organization). The engine barely tree-shakes, so it starts heavier. */
</script>

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