“ If every library were as robust and reliable as GreenSock’s, the world would be a much better place for software engineers and their clients. I can't think of a better designed or better performing tool, and as a bonus, it's fun as heck to play with. ”

Thomas Summerall

“ GSAP was a revelation for me to be compared with the introduction of jQuery ”

Jan Paepke, @janpaepke

“ GreenSock has encouraged me to play with the code, to dream up new and exciting things to do. ”

Robert Anthony

“ Honestly think without TweenMax, I'd of changed careers by now; it's that good. ”

James Stone, @mimeartist

“ ...obviously GSAP is incredible ”

Paul Irish

Google

“ Aside from GreenSock’s laser-focused attention to detail, GSAP is fast, reliable, flexible, exceptional value (read: free in most cases) and, very importantly, supported. ”

Chris Gannon

“ Go and browse through FWA or Awwwards, then view source of anything you see that has cool animation and you will be surprised how widely GSAP is used. ”

John Polacek

“ GSAP and CSS Transitions: I've done both, and its like comparing an F16 to a horse. Take like 10 minutes to try. ”

Vic C., @puppetMaster3

“ No other animation library is as intuitive, rigorous, conceptually simple and well curated as GreenSock’s ”

Robert Anthony