Windows
Compatible applications
Quick Facts
Basic information about this file format
Extension
.OPUS
File Type
Opus Audio File
Category
Audio
Best first step
Use compatible software
Quick Summary
A practical overview of the .opus file format
Opus is a lossy audio coding format developed by the Internet Engineering Task Force (IETF) and standardized as RFC 6716. It is designed for efficient encoding of speech and general audio, offering high quality at low bitrates. Opus excels in a wide range of applications, including Voice over IP (V…
File extension
.OPUS
File type
Opus Audio File
Category
Audio
Recommended action
Open with a trusted compatible app
How to open a .opus file
Start with a trusted app that supports this format
- Check the file extension carefully and confirm that the file name really ends with .opus.
- Use software that supports this file type. If one app does not work, try another compatible program for the same platform.
- Update the application if the file was created by a newer version of the software.
- Scan files from unknown sources before opening them, especially documents, archives, scripts, installers, and executable files.
What is a .opus file?
File extension details and usage information
Opus is a lossy audio coding format developed by the Internet Engineering Task Force (IETF) and standardized as RFC 6716. It is designed for efficient encoding of speech and general audio, offering high quality at low bitrates. Opus excels in a wide range of applications, including Voice over IP (VoIP), videoconferencing, in-game chat, and music streaming. It supports constant bitrate (CBR), variable bitrate (VBR), and constrained variable bitrate (CVBR) encoding modes, allowing for flexibility in balancing quality and bandwidth usage. Opus also features low algorithmic delay, making it suitable for real-time communication. The format incorporates both SILK (Skype's speech codec) and CELT (Constrained Energy Lapped Transform) technologies, enabling it to handle a variety of audio content effectively. Opus is royalty-free and open-source, promoting its widespread adoption and integration into various software and hardware platforms. Its adaptability and efficiency make it a popular choice for modern audio applications where bandwidth and quality are critical considerations.
Software Compatibility
Programs that may open or work with .opus files
macOS
Compatible applications
Linux
Compatible applications
Mobile
Mobile applications
Can .opus files be converted?
Options for saving or exporting this file to another format
In many cases, a .opus file can be converted by opening it in compatible software and using an option such as Save As, Export, or Convert. The available output formats depend on the file type and the application used.
- Use the original software that created the file when possible.
- Check whether the application supports exporting to common formats.
- Be careful with online converters when working with private, business, or sensitive files.
- If conversion fails, the file may be corrupted, incomplete, encrypted, or not actually a .opus file.
Why can't I open a .opus file?
Common reasons this file type may not open correctly
Wrong software
The file may require a specific program that supports the .opus format.
Incorrect extension
The file extension may have been renamed manually, even though the actual file format is different.
Corrupted file
The file may be incomplete, damaged during download, or transferred incorrectly.
Outdated app
Your software may need to be updated before it can open newer versions of this file format.
Frequently Asked Questions
Common questions about .opus files
To open a .opus file, use software that supports this file format.
- VLC Media Player
- foobar2000
- AIMP
- MPC-HC
- PotPlayer
Open the file in compatible software and look for options such as Save As, Export, or Convert. If no export option is available, the file may require a specialized converter or the original application that created it.
- Verify that the file extension is correct.
- Install or update compatible software.
- Try another application that supports this format.
- Check whether the file is corrupted, incomplete, or encrypted.
A file extension alone does not guarantee whether a file is safe or unsafe. Only open files from trusted sources, scan unknown files before opening them, and be especially careful with executable, script, archive, and document files.
File safety tips
Use caution with unknown files
Only open files from trusted sources. Before opening a .opus file, scan it with antivirus software, verify that the file extension is expected, and avoid running unknown executable, installer, macro-enabled document, or script files.