Native containers versus remux-first formats
MP4, WebM, and MOV drop in; screen recordings count
Video to GIF on this page means a file on disk. MP4, WebM, and QuickTime MOV are native. A screen recording works when you upload the recording file — not a cloud capture URL. Gif Studio extracts frames locally. Trim the clip in a video editor first so you are not asking the encoder to sample a feature film.
AVI, MKV, and M4V — remux, then come back
Those containers are not promised in-browser demux. Remux or convert to MP4 on your machine (HandBrake, ffmpeg, or the OS share sheet), then drop the MP4. We document the gap instead of failing opaquely.
No YouTube, no Twitch, no Live Photo packages
Paste-a-link is unsupported on purpose. Download or export the clip, then convert from the file. Live Photo bundles are not a video input — export a MOV or stills first. The ~30-frame and ~1200px caps still apply after extraction.