Found these two sprite sheet generators which are really cool.
http://www.piskelapp.com/p/agxzfnBpc2tlbC1hcHByEwsSBlBpc2tlbBiAgIDI5oTOCAw/edit
There's even onion skin so that you can animate your stuff pixel by pixel. Gonna try it out with a gif.
ww.leshylabs.com/apps/sstool/
This ones pretty cool too. But I had to rename the entire PNG sequence because this online generator reads it numerically from 0-end. Yeah I took a green screen video, Key Lighted it to remove the green screen and rendered 2 secs of it out into RGB+Alpha format so the transparency is still there. 2.09 secs of the video gave me about 57 Pngs.
Here's a fiddle.
https://jsfiddle.net/simurai/CGmCe/
