Saving an Animation

Hello, I am developing a project for another game and it's an animation creator.

I was wondering, how can I save the sprites that get placed by the user and the different frames etc.

I was thinking array but you can't save arrays, then I thought web-storage but I don't think it will be optifiable via storing a massive loads of text (Per frame it could be 5000+ characters), And the user might animate like 800 frames.

So that'd be 5000x800 characters in one string.

Any recommendments?

No answers?

PHP and ajax. If you host the game/app on a server then you can save values to a PHP script. Look at a thread named replay someone was trying to save a users replay to PHP.