Projection mapping software, without the desktop install.

What is projection mapping software?

Projection mapping software takes a flat image or video and reshapes it so it lands precisely on a real, physical surface — a wall, a window, a garage door, a prop, a stage set, or a sculpted object. Instead of a rectangular picture sitting awkwardly on a curved or angled surface, the visuals appear to wrap and belong to the object itself.

The trick is geometry. Your projector throws a rectangle, but the surface you're projecting onto is almost never a perfect rectangle facing the lens dead-on. Projection mapping software gives you the controls to fix that: corner-pinning (dragging the four corners of your image until they line up with the surface), warp (bending the image to follow curves), and masking (hiding the parts of the projection that should spill off the edges). Get those three right and the image stops looking like a slideshow and starts looking like it's painted on.

Beyond the geometry, good software also helps you build what you project: layering media, looping animations, reacting to audio, and saving scenes you can re-open for the next show. The depth of those features is exactly where the different tools split apart.

The four lanes of projection mapping software

It helps to think of the market as four lanes rather than a single ladder. Each one is a legitimate choice — the right pick depends on how ambitious your project is, how much you want to learn, and whether you're willing to install desktop software at all.

The pro desktop lane is where the headline names live. MadMapper, Resolume, TouchDesigner and Millumin are genuinely capable of running festivals, building façades, and complex live performances. They reward people who invest the time, and they're the right answer for serious professional work — but they ask for a paid license and a real commitment to learning.

The easy desktop lane, anchored by HeavyM, was built to make that power more approachable. It's a friendlier on-ramp than the pro suites while still being a proper desktop application you download and install.

The browser-based lane removes the install entirely. Everything runs in a tab, which makes it the fastest way to go from "I want to try this" to a projection on the wall. This is the lane SquirrelCast lives in. And mobile apps round things out for grab-and-go projections from a phone or tablet, where the screen is small but the convenience is high.

Where SquirrelCast fits

SquirrelCast is the easiest way to get a first projection-mapped scene up and running — typically in about ten minutes, entirely in your browser. You don't install anything, and you don't need an account to start. Open it in Chrome or Edge, pick a template, drag the four corners to fit your surface, and you're projecting.

It's deliberately beginner-shaped. Instead of a blank canvas and a manual, you get ready-made templates (think Haunted Window, Portal Wall, and a DJ / Party Backdrop), a library of generative effects that animate without any video files, and a guided first project so you always know the next step.

To be clear about what it is not: SquirrelCast isn't trying to replace MadMapper, Resolume, or TouchDesigner. It doesn't compete on the deep professional VJ feature set, and it isn't aimed at festival-scale installations. It's built for beginners, decorators, makers, teachers, and small events — the people who want the magic without the machinery.

What you can map

The surfaces and occasions people reach for projection mapping are wonderfully varied. Here are a few popular starting points, each with a full guide: