Completed Skins Compendium An easy to search archive of all osu! skins posted in the Completed Skins forum.
Programs and Tools
Fringe Remover Fixes issues with skin assets that may result in white fringing due to osu!'s rendering.
Skin Checker An overview over the progress of your skin, detector for assets that do not do anything, as well as a skin.ini editor.
Mania Column Centering ColumnStart calculator to easily center mania playfields for any aspect ratio.
Skinnable Files List Spreadsheet containing information about all skinnable images, sounds aswell as all skin.ini commands
Song Selection Template Pixel perfect templates for the song selection showing all the little details for various aspect ratios
Menu Background Template Pixel perfect templates for the menu background showing all the little details for every menu
Galvit's Template Skin THE template skin, containing a template for every asset with information on overlaps, anchor points and much more!
XetThe’s Slate (open source osu! skin template) Example skin.ini containing all default values and some helpful links