Live2D Cubism is described as 'Live2D is the world's first drawing technology to enable 3D rendering of 2D images. This technology supports a variety of portable consoles and smartphones, and Live2D is already being utilized for games that take advantage of the unique characteristics of hand drawn artwork' and is an app in the photos & graphics category. There are more than 10 alternatives to Live2D Cubism for a variety of platforms, including Windows, Mac, Linux, Web-based and Flathub apps. The best Live2D Cubism alternative is Synfig Studio, which is both free and Open Source. Other great apps like Live2D Cubism are Inochi Creator, enve, Expressive Animator and Spine.
Open-source 2D software for creating animations with vector and bitmap artwork, advanced bone rigging, tweening, timeline editing, onion skinning, multi-layer effects, audio sync, and multi-format rendering on Windows, Linux, and macOS.
Inochi creator is a framework for realtime 2D puppet animation. On this site you can find the reference implementation as well as the official tooling for creating and using Inochi2D puppets for VTubing.
It offers a free open source alternative. This is especially good for those that cannot afford Live2D subscription and find the free version too limiting. Plus the usage license is not restrictive.
Enve is a free and open-source 2D animation app. It can create both vector and raster animations and even use sound and video files. It has been created with flexibility and expandability in mind.
Create interactive SVG animations with precise keyframe and easing control, custom vector paths, shape and text editing, gradients, masks, boolean operations, blend modes, snap, grid, advanced export options including Lottie, GIF, and no JavaScript required.
Spine is 2D animation software designed specifically for software and game development. Animators, artists and programmers unite to bring your games alive.
AnimeEffects is a 2D keyframe animation tool based on deformation of polygon meshes. You can easily operate, quickly shape your idea, and remake at any time if you have changed your mind.
If all you need is a simple program that lets you switch between two images as you talk, then this program is for you!
Marionette Studio is a great software, powerful, easy and very intuitive to create 2D animations, characters for video games and more.
E-mote is an engine which can create smooth and stereoscopic animation in a few steps from the character's 2D illustration. You can easily and dynamically move the expressions, orientations, limbs of standing pictures characters and make it look 3D.
This software is used to create fluid and natural animation to 2D graphics, easily allowing the user to use secondary animation to make it look more natural.
Nijigenerate is an open source editor for the nijilive puppet format, which is derived from Inochi2D (v0.8) technology. This application allows you to rig models for use in games or for other real-time applications such as VTubing.
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While it looks like serving similar purpose, both software targeted for different animation format with entirely different toolset.
Live2D is for 2D character rigging with realistic movement, used in interactive scenario. Synfig is more of vector-based animation.