Rotate a GIF online
For permanent links you can use: https://ezgif.com/rotate?url=https://example.com/source-image.gif
Online animated GIF rotator
This is a GIF image transformation tool.
Here you can flip the image (mirror) horizontally and vertically, and rotate (spin) it using presets or by entering freely chosen degrees, clockwise and counter-clockwise.
This tool can rotate animated GIF, WebP, APNG and FLIF files, as well as images in any other well known format including JPG, PNG, BMP, TIFF and others.