OSR File – What is .osr file and how to open it?


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OSR File Extension

osu! Replay File – file format by peppy

OSR (osu! Replay File) is a file format developed by peppy that stores replays of gameplay in the osu! rhythm game. It contains information about the player’s actions, such as keystrokes and mouse movements, as well as the game’s state during the replay.

OSR File Format

An OSR file, with the extension “.OSR,” is a replay file format used in the rhythm game osu!. Developed by peppy, it captures all the gameplay data of a player’s performance on a specific beatmap, including their actions and scores. OSR files allow players to share their replays, watch others’ performances, and preserve their own achievements.

Features and Compatibility

OSR files store a detailed record of a player’s actions during gameplay, including keystrokes, mouse clicks, and hit timing. This data can be replayed within osu! to simulate the player’s performance, enabling viewers to analyze techniques, identify areas for improvement, and enjoy the replay as a form of entertainment. OSR files are compatible with all versions of osu!, ensuring wide accessibility to share and view replays across different platforms and game updates. The file format’s simplicity and portability make it a convenient way to archive and distribute osu! gameplay experiences.

Opening OSR Files using osu!

osu! Replay Files, known by the file extension .OSR, contain gameplay data from the rhythm game osu!. These files are specifically designed to be opened and played back within the osu! game client. To open an OSR file, simply follow these steps:

  1. Install osu!: Ensure that you have the latest version of osu! installed on your computer. You can download it from the official osu! website.

  2. Drag and drop the OSR file: Once osu! is installed, you can open an OSR file by simply dragging and dropping it onto the osu! game window.

  3. Play the replay: osu! will automatically load the replay and begin playing it back. You can use the controls in the game to pause, rewind, or fast forward the replay. You can also use the “Replay Editor” to make changes to the replay’s camera and other settings.

Alternative Methods

In addition to using osu!, there are a few alternative methods to open OSR files:

  1. Web-based OSR viewers: There are several websites that offer web-based OSR viewers, allowing you to play replays directly in your browser. These viewers typically require you to upload the OSR file to their website.

  2. Third-party replay editors: Some third-party tools, such as “osr2mp4,” can be used to convert OSR files into other formats, such as MP4 videos. These videos can then be played back using any video player that supports the MP4 format.

OSR File Format

An OSR file is a replay file format used by osu!, a free-to-play rhythm game. It stores a recording of a player’s performance on a specific song, including their inputs, timing, and accuracy. OSR files are essential for sharing and comparing gameplay experiences, as they allow users to view and analyze replays of both their own and other players’ performances.

OSR File Structure

OSR files are structured in a binary format. They begin with a header that contains general information about the replay, such as the version, song ID, and date. The header is followed by a series of sections that contain data about the player’s inputs, timing, and accuracy. These sections include information such as keypresses, mouse clicks, and touch screen taps. The final section of the OSR file contains information about the end of the replay, such as the player’s score and rank.

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