Choose your next run.
Import a 4K osu!mania .osz for charts, music & backgrounds. For .osu, select its audio and image together, or open the beatmap folder.
Files stay in this browser session. Nothing is uploaded.
Browse beatmaps
Catalog and downloads: Hinamizawa mirror. Native 4K difficulties only. Downloads load into this browser session, with music and backgrounds when included.
Make your own rhythm.
Customize gameplay
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The same renderer, HUD and responsive layout as gameplay. Preview plays automatically without audio; use full screen to view it at actual device size.
Multiplayer
Find your room.
Up to 8 players. Shared charts, individual playfields.
Create a room or join with a code.
4K multiplayer room
Waiting for the host
No beatmap selected.
Imported maps: everyone imports the same difficulty and its audio in Song select. Audio and images stay local.
The host starts when all players are ready.
Players
0 / 8Round standings
Scores will appear when the match starts.
Mixed circuit
Untitled 4K practice series · STANDARD
Keep the rhythm.