Fill a Transparent GIF – Online GIF Tools

Animated GIF Email Signature Maker by WiseStamp

Create a Transparent GIF – Online GIF Tools

How to Make a GIF (iPhone, Android, Photoshop and More)

Free Tools Icon Pack Animated GIF Icon Pack - PowerPoint - PPT & Google Slides Download

Can I make a GIF with transparent background? - Help

3 Free Tools to Make Custom Gifs

c# - Transparent animated gif picture show above another picture - Stack Overflow

GIPHY Backdrop - Make Your Own Animated Zoom Backgrounds

How to Create & Add an Animated GIF to an Email - Litmus

Online GIF Tools' that allows you to edit many things such as changing the playback speed of GIF animation, mosaic processing, transparency processing, etc. - GIGAZINE