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WebM to GIF

Sample WebM screen recordings and clips into GIF frames.

Upload
Single file · 100 MB max
Privacy
Nothing is uploaded
Cost
Free · no sign-up · no watermark

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Processed entirely on your device

Your file is read, transformed and re-encoded inside this browser tab using JavaScript. There is no upload endpoint — nothing leaves your machine, nothing is stored, and the result is created as a local object URL that disappears when you close the page.

Overview

About the WebM to GIF

Convert WebM video to GIF free online — ideal for screen recordings and browser captures. Frames are sampled locally at your chosen rate, span and width.

WebM is the format of the browser-native recording stack: the screen capture APIs, OBS defaults and camera tools all write it. It is also completely unshareable in the places short recordings need to live — issue trackers, wikis, chat, README files. GIF is the lingua franca there.

Why recordings convert well

GIF's 256-colour palette is brutal to photographs and gentle on interfaces. A screen recording is flat fills, sharp text and a limited accent palette, so quantisation is nearly invisible — which is why UI GIFs from WebM sources look crisp where footage from the same tool would band.

Settings for bug reports and demos

  • Span: isolate the interaction. Three to six seconds is enough to show a click, a menu, a failure.
  • Width: 480 px keeps text readable in an issue thread; 640 px when the recording contains small type.
  • Frame rate: 8–10 fps. UI state changes are discrete, so extra frames are duplicates that only add bytes.

The honest limitations

Semi-transparent WebM alpha flattens to solid pixels in GIF, and any photographic content in the frame (video call windows, camera overlays) will dither. For those regions the GIF is a preview, not a master copy.

Step by step

How to use the WebM to GIF

  1. Drop a .webm file onto the upload area — screen recordings and browser captures both work.

  2. Set the start and stop seconds around the interaction you want to show.

  3. Choose a frame rate and width; UI recordings stay legible at 480–640 px.

  4. Press Convert to GIF and download the looping result.

Why use it

Benefits and common use cases

What this tool is good for, and what it deliberately does not try to do.

Made for screen recordings

WebM is what browser screen recorders and OBS defaults produce. Flat UI colour quantises cleanly into GIF's 256-colour palette, so recordings survive better than camera footage does.

Documentation-ready output

A looping GIF embeds in README files, issue trackers and wikis where video does not autoplay — the difference between a bug report people read and one they watch.

Local sampling

The clip is seeked and drawn through your browser's own VP8/VP9 decoder and a canvas. Nothing is uploaded and nothing waits on a server queue.

Questions

Frequently asked questions

Short, honest answers about quality, limits and privacy.

Why does my screen recording GIF look perfect while camera footage bands?

GIF stores 256 colours per frame. Interfaces use a handful of flat colours, so they quantise almost losslessly; photographic gradients have to dither across the same budget and show banding. Same format, very different sources.

What frame rate suits a UI recording?

8–12 fps. Interface changes are discrete — a click, a menu opening — so high frame rates add frames that are identical to their neighbours and only inflate the file.

Can I convert a WebM with transparency?

WebM can carry alpha, but GIF transparency is all-or-nothing per pixel with hard edges. Semi-transparent regions flatten during sampling, so soft shadows and glows lose their gradient.