animate

i love animating, but haven’t done it much since i decided to delete all of the illegal stuff i had on my computer (including flash, photoshop, premier, etc .. hardest thing ive ever done.) anyway, the only thing holding me back is lack of money to be spending on this software and/or not knowing of any good open-source alternative to flash .. i use blender for 3d animation, but nothing seems to exist for 2d animation. if anyone knows of any such software, id love to hear from you!!