osu! Tools

A collection of useful osu tools

Player Stats

Track player rankings and performance

osu!727

a better ranking system

Beatmap Tools

Most popular beatmap mirrors

Catboy Best

has an API

Nerinyan

better UI

Beatconnect

has a desktop client

Skin Tools

Tools for creating and customizing osu! skins

osuck

the best osu skin library

Circle People

Large collection of community skins

Replay Tools

Some useful tools to produce osu videos

o!rdr

Website to render you osu! replays