Rewind is a beatmap/replay analyzer for osu! and is currently in development phase.

This video shows most of the features listed down below:

• Music playback
• Speed change 0.25x-4.0x
• Scrubbing (jumping to a specific time)
• Toggling the "Hidden" mod
• Analysis cursor
• Slider dev mode
• Hit error bar (slightly improved)
• Statistics such as UR
• Watching frame by frame
• Skin support
• Difficulty graph on the timeline
• Gameplay events (Miss/SB/50/100) in the timeline
• Support for unsubmitted maps
• File watcher
• Customizability of many elements (e.g. cursor size)
• Shortcuts
• ...

The latest release for Windows/Linux can be found at the release page.

If you have any questions about Rewind or want to contribute by submitting ideas, feel free to join the osu! University Discord. It is an improvement-focused osu! hub, osu! coaching hub, and a platform for experienced players to spread their game knowledge to the public.

If you want to contribute, please join the Dev Discord.

Currently, a large portion of the code is in a "volatile" / "prototype" / "proof of concept" state. So if you want to contribute by developing, please notify me beforehand.