Effekseer is described as 'tool that allows easy creation of beautiful particle effects for games and movies'. There are three alternatives to Effekseer for a variety of platforms, including Mac, Windows, Adobe After Effects, BlitzMax and Java. The best alternative is ParticleIllusion. It's not free, so if you're looking for a free alternative, you could try Talos VFX.
Export the particle effects as static animations onto sprite sheets, animation strips or image sequences in PNG format, or if you develop for the iPhone or iPad, you can export using the PVRTC format (Mac only).
Talos is an open source, node based particle effect editor that can be used in game development. It features a powerful but intuitive, drag-and-drop interface with the ability to import legacy LibGDX files for easy, visual editing.