BrawlCrate

Overview
BrawlCrate is a fork and unofficial successor to BrawlBox. It uses the same basic interface as BrawlBox while adding new features and fixing bugs and glitches. Unlike BrawlBox, it is still in active development and gets regular updates.

Like BrawlBox, BrawlCrate was designed to edit .PAC and .PCS files from Super Smash Bros. Brawl, but can also edit files from Mario Kart Wii such as BRRES files.

Links

 * Source Code
 * Why use BrawlCrate?