Paintify

Grab a brush and start painting on a blank canvas — Paintify puts a familiar toolbar in front of you with pencil, fill, eraser, and shape tools, plus a full color picker and adjustable brush sizes. It's a clean, no-fuss drawing app modeled on the classic MS Paint experience, running entirely in your browser with nothing to install. If you've ever scribbled something in Paint just to get an idea out of your head quickly, this will feel immediately comfortable.

It sits squarely in the creative apps category alongside more feature-heavy tools, but Paintify earns its place by staying simple. There's no layer system or pressure sensitivity — just you, a mouse, and a canvas. If you want something closer to the original Windows experience with undo history and transparency support, JS Paint is worth a look too.

When you're done, export your work as a JPEG straight from the browser — handy for quick sketches you actually want to keep. Works best with a mouse rather than a trackpad.