Opening a VMU File

The VMU file type is primarily associated with Dreamcast.

VMU	File extension: VMU
	File type:	VMU Save File

What is a VMU file?

VMU files mostly belong to Dreamcast by Sega. Use our "Online VMU Text Viewer" below to analyze your VMU file and to see all text it contains.

How can I open a VMU file?

You need a suitable software like Dreamcast to open a VMU file. You need a suitable software like Dreamcast from Sega to open a VMU 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 VMU file correctly, try to right-click or long-press the file. Then click "Open with" and choose an application. You can also display a VMU file directly in the browser:. Just drag the file onto this browser window and drop it.

Online VMU Text Viewer

Choose your .vmu file to analyze

or drag and drop it here

Online File Viewer

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.VMU File Won't Open? Here is What You Can Do

Because .VMU files can come from different programs, they aren't universally openable.

Identify the Source: Gamers backing up Sega Dreamcast memory cards or sharing retro saves often use this format, suggesting emulator software.
Check the Header: Open the file in a hex viewer to inspect the first few bytes.
- If you see mostly unreadable binary data, it's likely a standard Dreamcast save file.
- If you spot readable text or XML, it may be a custom configuration file.
Use the Original Software: The original program is usually required; try Sega Dreamcast emulators like Flycast, nullDC, or tools like VMU Explorer, or ask the sender if uncertain.
Use this Webpage: Drag and drop your file onto this page to detect its format, extract readable text, and preview its contents.

Technical Data for VMU File Extension

Related files:

bin, dci, vmi, vms, osb

Mime type:

text/plain

a vmu VMU Save File is a special file format by Sega and should only be edited and saved with the appropriate software.

How to solve problems with VMU files

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