Thumbnail Feedback Outline on Photos

CherylAHaskell

New User
TubeBuddy Pro
3
5
Hello!
I'm looking to improve my thumbnails, and I see a trend is to put like a "glowing" outline around your pictures. Does anyone have an easy way to do this? Keep in mind I don't own Photoshop, or any paid editing software on my PC. If using an Iphone is possible, can you please let me know which apps.
Thank you so much!