Paperless Post - Paperless Post is an online platform for creating custom card and invitations.
OpenToonz - OpenToonz is an animation program that is a free software version of Toonz, the animation software...
Pingg - Pingg is an online e-cards and invitation maker and invitation sending platform.
Synfig Studio - Just another WordPress site
Manvite - As the name of this service suggests, the users can avail easily and simply invite rather than online summons that are blessed with flowery fonts and dabbling champagne glasses.
Adobe Animate - Adobe Animate is a Flash, vector animation software.