Here's a few tools you can use to make animated gifts.
Whether that's from your phone, camera, or phone and existing videos.
Imager has a video to GIF tool on its website.
Just past a URL from the video from any number of sites like U tube or vineo.
They make edits to links and save.
New iPhones take live photos which are like animated GIFs with sound.
Use the google app called Motion Stills for iOS to convert them to GIFs you can share.
Make looping and reversing animations with Boomerang for Android or iOS.
Hold down the shutter button to take a video then export to Facebook, Instagram or your camera roll.
Technically, these are videos rather that GIFs.
So an alternative is DSCO, spelled D-S-C-O, for iOS.
This app lets you export GIFs to your camera roll.
GIPHY Cam for Android and iOS lets you add fun filters or special effects to your animation.
In San Francisco I'm Lexy Savvides, CNET.com for CBS News.