Opening OSB Files

The OSB file type is primarily associated with osu!.

OSB	File extension: OSB
	File type:	script file

What is an OSB file?

OSB files mostly belong to osu!. OSB files are used to define game events. In many cases, they work as osu! storyboard scripts that list visual and audio triggers.
These files tell the game when to change sprites, play sounds, or animate backgrounds.
Key details summarized by FilExt.com:

They serve as beatmap storyboard files in osu! to design gameplay scenes.

Some OSB files work as binary files in OpenSceneGraph for simulation with OpenSimulator.

Their content can include timing, positioning, and sound data.

FilExt.com tip: Visit the pages on osu! and OpenSimulator for further info.

How can I open an OSB file?

You need a suitable software like osu! to open an OSB file. Without proper software you will receive a Windows message "How do you want to open this file?" or "Windows cannot open this file" or a similar Mac/iPhone/Android alert. If you cannot open your OSB file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a OSB file directly in the browser:. Just drag the file onto this browser window and drop it.

Online OSB Text Viewer

Choose your .osb file to analyze

or drag and drop it here

Online File Viewer

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Programs that open and convert OSB files:

osu!
See the previous paragraphs to learn more about the main application. OSB files are often referred to as osu! games because this type of file is primarily created or used by this software.
Sega Dreamcast (Sound (One Shot Bank)) by Sega of America, Inc.
This file format is classified as Audio.

Technical Data for OSB File Extension

File classification:

Game

Related files:

osu, osr, osz, osgt, ive, osbd, obs, backup, jpg, cpk, cak, sj1

an osb script file is a special file format and should only be edited and saved with the appropriate software.

How to solve problems with OSB files

Associate the OSB file extension with the correct application.
Update your software that should actually open script files. Because only the current version supports the latest OSB file format. Search, therefore, e.g. on the manufacturer website after an available osu! update.
To make sure that your OSB file is not corrupted or virus-infected, get the file again and scan it with Google's virustotal.com.
Click here to open your .OSB file online - secure, fast, and no downloads needed.