This site’s other XR tutorials go through TouchDesigner and Unity — powerful, but heavyweight. There’s a much lighter path into augmented reality: the browser. With A-Frame (an HTML-like framework for 3D scenes) and AR.js (a lightweight library that handles the camera feed and tracking), you can build AR that runs from a web link on a phone, with no app to install and no game engine to learn. Tutorial: Augmented Reality Web App Using AR.js & A-Frame walks through it, and the striking part is how little code it takes.
Why the browser is a great place to start
The friction of AR has always been distribution: asking someone to download an app to see your work loses most of the audience. Web AR removes that entirely — you share a URL, the visitor opens it, grants camera access, and they’re in. For artists and designers, that’s transformative for reach: a poster with a QR code, a gallery label, a business card can all trigger an AR experience with nothing to install. AR.js is deliberately approachable, and A-Frame lets you describe a 3D scene in HTML-like tags, so the whole thing feels closer to building a web page than programming a game.
Markers, images, and location
The tutorial centers on the most beginner-friendly trigger: a marker (a printed pattern the camera recognizes and anchors 3D content to). It’s the easiest way to see AR working — point the phone at the marker, and your model appears locked to it. From there, AR.js also supports image tracking (anchor content to any image, like artwork or packaging) and location-based AR (place content at real GPS coordinates). Understanding markers first gives you the core mental model — the library finds a known thing in the camera feed and pins your scene to it — which the other modes build on.
Where to go next
Web AR trades power for reach: it won’t match a native app or a headset for fidelity or tracking robustness, and lighting and camera quality affect results. But as a way to get real AR in front of real people fast, it’s unmatched, and it connects to the rest of this site’s spatial coverage — the same 3D assets from a Blender workflow, the persistent-AR ideas behind platforms like Niantic Spatial, and the WebXR path for headset experiences. Start by getting one 3D object to appear on a marker; from there, image tracking and your own models are a short step away.