RealWorld Paint has much hidden power under the hood and harbors features unexpected in a freeware image editor. Many of its drawing tools and image filters are able to do gamma-aware blending and color gradient interpolation, producing correct colors by default.

A powerful scripting system allows users to greatly extend and customize the functionality of RW Paint.COM using JavaScript. For example the "Create screenshot" command (used to generate the screenshot above) is a scripted function.

Beside the ability to use native plug-ins for virtually everything (filters, tool, fills, windows, codecs, storage, ...), RealWorld Paint.COM is also able to use the vast amount of plug-ins compatible with Adobe Photoshop.

RealWorld Paint.COM can display images using any zoom factor and always shows 100% accurate preview of the drawn shape. Tooltips are displayed throughout the user interface to explain meaning of controls.

After a geometric shape is added to an image, control handles appear and users can further adjust the shape. New points can be added to poly-lines, curves and polygons by dragging a handle of an edge.

RealWorld Paint.COM allows you to edit pictures with layers and assign effects to every layer. A layer can have for example a bevel effect active giving all shapes a 3D look and feel.