NUKE is described as 'powerful compositing application that delivers unparalleled speed, an efficient multi-channel scanline rendering engine, and a first-class feature set that is unrivalled in the desktop market' and is a 3D Modeler in the Photos & Graphics category. There are more than 10 alternatives to NUKE for a variety of platforms, including Windows, Mac, Linux, Online / Web-based and Android. The best alternative is Natron, which is both free and Open Source. Other great apps like NUKE are SketchUp (Freemium), Camtasia Studio (Paid), Adobe After Effects (Paid) and HitFilm Pro (Paid).
SketchUp (formerly Google Sketchup) is a 3D modeling computer program for a wide range of drawing applications such as architectural, interior design, civil and mechanical engineering, film, and video game design—and available in a freeware version, SketchUp Make, and a paid...
Produce videos for the web using the industry-leading H.264 format. No tweaks or technospeak, just sparkling HD-quality video with compact file sizes...every single time. Two existing production presets (blog and web) and three new presets (YouTube, HD display, and Screencast.
Adobe After Effects is the premiere digital video effects software used industry wide for film making and TV production as well as creative work including high-end video intros and audio-reactive music visualizers.
Most users think Adobe After Effects is a great alternative to NUKE.
Blackmagic Fusion (formerly known as Fusion and eyeon Fusion) is an image compositing software program created by eyeon Software Inc, now developed by Blackmagic Design. It is typically used to create visual effects and digital compositing for movies, TV-series and commercials.
Blackmagic Design Fusion vs NUKE opinions
Almost everyone thinks Blackmagic Design Fusion is a great alternative to NUKE.
M_O_Z_G Fusion is also have wide range of usage in the industry. And it's closer to Nuke than others.