From a screen recording to a GIF that plays inline
WebM is what browser-based screen recorders and many desktop capture tools produce, so the typical file here is a short demo: a bug reproduction, a feature walkthrough, a UI interaction. Converting it to GIF makes it play inline in exactly the places people paste such things, including issue trackers, README files, pull requests, chat apps, and documentation pages.
The conversion is local. The clip is decoded in your browser, a color palette is generated from the frames themselves, and the GIF is assembled with that palette applied. Nothing is uploaded, so an internal product demo does not have to pass through anyone else infrastructure to become a GIF.
The palette step is why the output looks as good as it does. Rather than dithering against a fixed color table, the tool analyzes your actual frames first and builds a palette that matches them, then maps the video onto it. That is the difference between a GIF that looks like the recording and one that looks like 1998.
- Choose one WebM or drop it on the page
- Set start and end, width, frame rate, and quality preset
- Convert locally and download the looping GIF
Keeping the GIF small enough to actually post
GIF is dramatically less efficient than WebM, so the file will grow in the conversion. That is not a flaw in the tool, it is the format: WebM uses a modern video codec that stores the difference between frames, while GIF stores palette frames with compression from the 1980s. Three levers keep the result in check.
Clip length is the first and blunt one. The tool defaults to a three second range for a reason: a few seconds is a long GIF. Width is the second, and it is the strongest per unit of effort, because data scales with pixel count. Frame rate is the third; the default of 12 frames per second exists because screen recordings tolerate low rates unusually well. UI is mostly still between moments of motion, so cursor movement and typing read as smooth at 12 fps.
The quality preset moves the palette. High keeps 256 colors with fine dithering, balanced drops to 192, and smaller drops to 128 with a cheaper ordered dither that compresses better. On flat UI the difference between the three is often invisible while the file size gap is large, so start at smaller and move up only if you see banding you care about.
Looping, audio, and what GIF gives up
The loop control offers continuous looping or a fixed number of plays. Continuous is what issue threads and chat apps expect, and it is the default. A fixed count is useful when the animation has a clear end state you want the viewer to be left looking at.
Sound does not survive, because GIF has no audio track at all. If the clip needs narration, the format is wrong and an MP4 is the right destination instead. The same is true for anything longer than a few seconds or anything with camera footage: video codecs exist because they are better at this, and a GIF of a thirty second recording is a file most platforms will refuse.
Color is the other thing GIF gives up. The format allows 256 colors per frame, so gradients, soft shadows, and video-like content band visibly. Flat interface recordings, terminal sessions, and line art convert nearly untouched, which is why the format has survived for exactly that use.
- Continuous loop by default, or set a fixed play count
- GIF has no audio track, so narration is lost
- 256 colors per frame is the ceiling, so gradients band