There was Crocadoo, but that was fucking awful. I think it was kludged together on some early animation software somewhere in between Flash and Microsoft Paint.
Oh, here we go, Wikishit incoming:
>CROCADOO was Energee Entertainment's first original series, its first season being digitally colored and composited with Apple computers running Adobe, Linker Systems and COSA software. First season's 3D backgrounds (Hotel, hotel interiors) were created using SGI Power Animator. Halfway through the first series, beginning with "Watch out for the Wonglebacks", some character animation was outsourced to Vietnam. CROCADOO's second season utilized Energee Entertainment's own CECAPS computer paint software.
Well, it looked better than GoAnimate, lol.