AvsP is essentially a text editor designed to help create AviSynth scripts.
AvsP avoids having to use a seperate text editor and video previewer by having a video preview built right in, no need to deal with juggling windows. And since it's a tabbed text editor, comparing multiple scripts becomes remarkably easy, no running and lining up multiple programs, no jumping to a position multiple times. Furthermore, AvsP offers a unique feature called user sliders, which allows for instant comparison of varying filter strengths, something that is impossible to accomplish with a simple text editor.
