The beta version of Spriter is available for Windows, Mac and Linux.
Note:If after installing Spriter you get an error that vcomp100.dll is missing, please install the Visual Studio 2010 C++ runtime. If you are on 32 bit Windows you only need the 32 bit version. If you are on 64 bit Windows, you will need to install both the 32 bit and 64 bit versions. 32 bit https://www.microsoft.com/en-us/download/details.aspx?id=5555 64 bit https://www.microsoft.com/en-us/download/details.aspx?id=14632