Simon Willison’s Weblog


4 items tagged “gif”


gifcap (via) This is really neat: a purely client-side implementation of animated gif screen capture, using navigator.mediaDevices.getDisplayMedia for the screen capturing, mithril for the UI and the gif.js pure JavaScript GIF encoding library to render the output. # 30th March 2020, 9:29 pm


Should I ever use GIF image format for non animated elements?

These days probably not—anything non-animated that you would use a GIF for is generally better as a PNG.

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The GIF Pronunciation Page. It’s jiff. Here’s evidence. # 11th June 2009, 10:50 pm


Poking new holes with Flash Crossdomain Policy File. This is an old article from 2006 which describes the crossdomain.xml hidden in a GIF exploit I referred to in an earlier post (scroll down to the appendix for an example). As far as I know the Flash Player’s crossdomain.xml parser has been tightened up since. # 1st July 2008, 4:12 pm