A small, lightweight tool to help manage osu! collections
Only a small ammount of error checking has been implemented at the moment, expect bugs, but at the very least you shouldn't lose any files. Everything is backed up into "osu/collections backup" before any changes are made.
Possible future features:
More error checking
Actual release
Sound preview
Ability to add songs into collections
Delete whole collections at a time
Create collections
Move songs between collections