Answer:

GIF

AnswerCrossword Clue
GIFPicture-file suffix
GIFPicture file suffix
GIFAnimated ...
GIFJPEG alternative
GIFComputer image file, familiarly
GIFWeb pic file
GIFJPEG cousin
GIFPC image file
GIFMoving picture on the internet
GIFPhoto file extension
GIFWeb picture file, for short
GIFComputer file suffix
GIFAlternative to .jpg
GIFBitmap image
GIFInternet picture file
GIFCertain embedded Internet video
GIFInternet image file, familiarly
GIFRepeating film snippet online
GIFOft-animated pic
GIFPC image file familiarly,
GIFOften-animated picture file
GIFImage file type with a much-debated pronunciation
GIFMany an animated meme
GIFAnimated picture file
GIFMany an embedded animation