Comment by JoshTriplett

Very nice. If this had a simple way to add timed annotations ("#ann=top,10s,18.3s,SomeText" or similar), that'd be absurdly useful.

What technology did you build this with? What do you use to decode videos and write out gifs?

Here's a useful bookmarklet to apply this to a video: javascript:location.host="gifyoutube.com"

EDIT: are you getting hammered by traffic right now? Because I tried this on a 15 second video, and it's been processing for ten minutes.