Animated GIFs the Hard Way (sublimetext.com)
recommended by 1 user | 2012 | 190 points by jskinner | graphics | original thread |
One user recommended this thread. What they said:
vanderZwan May 21, 2013 | on: Show HN: gif.js - Fast GIF encoder using web workers | context

The discussion when he published[1] it is probably also worth looking into, as people discussed pros and cons of this technique, and alternatives. Which is kinda what you're looking for, right?

[1] https://news.ycombinator.com/item?id=4532146