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This sub is dedicated to NSFW clips in formats - mainly WebM - supported by HTML5.
WebM clips, such as those hosted on Gfycat, have gained popularity over gifs because of the significantly increased quality and decreased file size.
Before uploading to Gfycat, convert videos to the WebM format; use the VP8 (not VP9) video codec. This avoids Gfycat encoding the video with substantial quality loss.
Tips for making high-quality gfys:
Example video converters:
Subreddits to help find a source: