TwistedBrush Open Studio has most of the great features of TwistedBrush Pro Studio, but just a handful of the very fine brushes included and without brush editing ability, all for free.
Additional collections of brushes are available for purchase.
Pro Natural Media
Pro Clips, Image Brushes and Image Shapes
Pro Blobs and Liquid Brushes
Pro Trees and Plants
Art Tool Brushes
Blender Brushes
Blob Brushes
Cloner Brushes
Essentials Brushes
Foliage Brushes
Fractal Brushes
Impressionistics Brushes
Mandala Brushes
Masking Brushes
Utility Brushes
Many More Features: Explore the wealth of other features in Pro and TwistedBrush Open Studio such as Blob Modeling, Mask Filters, Alpha Channel Filters, Editing ArtSets for brush management, References Images, Pattern Explorer, Recording your work directly to video, Recording your work to a script that can be played back (Pro), Page Explorer, Random Brush Generation, Auto Page Saving, high performance Undo and Redo, Create a PDF Slideshow, Scanning, Lanczos3 Image Scaling, Paper Textures and of course the extensive range of available brushes!
Editor's Note:
No longer free but this is the last freeware version.
XnView Full is a powerful tool that enables users to view, process, and convert image files easily. XnView Full has all plug-ins and languages included. XnView Standard has just a few add-ons included.