emoteJAM is a simple website that generates animated BTTV emotes from static images.
The most important feature of the website is that it's completely client-side and can be easily deployed to something like GitHub Pages. It uses WebGL to animate static images and gif.js to generate actual GIF files inside of your browser.
Official Deployed Instance: https://tsoding.org/emoteJAM/
Nothing particularly special is required. Just serve the folder using HTTP server like Python's SimpleHTTPServer:
$ python -m SimpleHTTPServer 6969 $ iexplore.exe http://localhost:6969/