.WEBM file extension
To open .WEBM files on Windows, right-click the .WEBM file and select 'Open with'.
.WEBM files are video files that can be opened with media players like VLC or directly in most web browsers. To open a .WEBM file, use a compatible application or browser on your device.
Last updated: March 19, 2026 · Reviewed by Julian Stricker
Open on your device
Choose your operating system for a dedicated step-by-step opening guide.
How to open .WEBM files
Use these platform-specific instructions to open .WEBM files safely.
Windows
- Right-click the .WEBM file and select 'Open with'.
- Choose VLC Media Player or another compatible media player.
Mac
- Control-click the .WEBM file and select 'Open With'.
- Choose VLC or QuickTime with the necessary plugins.
Linux
- Right-click the .WEBM file and select 'Open With'.
- Choose VLC or another compatible media player.
iOS
- Use VLC for Mobile to open the .WEBM file.
Android
- Open the .WEBM file using VLC or MX Player.
Security notes
- Only download .WEBM files from trusted websites or sources.
- Use antivirus software to scan files before opening them.
- Be cautious of files from unknown senders, as they might contain malicious content.
Recommended antivirus software
Scan files before opening them. These antivirus tools help protect against malware and viruses.
Avast offers free and premium antivirus software that protects against viruses, malware, ransomware, and phishing. Scan files before opening them to ensure safety.
NortonNorton 360 delivers comprehensive antivirus protection, VPN, and identity theft monitoring. Scan files for threats before opening to keep your device secure.
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Can't open this file?
These are the most common causes and fixes when .WEBM files fail to open.
Common reasons
- WEBM file does not play
- No sound in WEBM file
- WEBM file plays slowly
Fix steps
- Try opening the file with VLC Media Player.
- Ensure the file is fully downloaded and not corrupted.
OS-specific troubleshooting
Convert .WEBM to other formats
Use conversion tools to change .WEBM files into formats your software supports.
- .WEBM → .3G2
- .WEBM → .3G2
- .WEBM → .3GP
- .WEBM → .3GP
- .WEBM → .AAC
- .WEBM → .ASF
- .WEBM → .ASF
- .WEBM → .AVI
- .WEBM → .AVI
- .WEBM → .AVI
- .WEBM → .DAT
- .WEBM → .DAV
- .WEBM → .DIVX
- .WEBM → .DV
- .WEBM → .DVRMS
- .WEBM → .F4V
- .WEBM → .FLAC
- .WEBM → .FLV
- .WEBM → .FLV
- .WEBM → .M2T
- .WEBM → .M2TS
- .WEBM → .M2TS
- .WEBM → .M4A
- .WEBM → .M4V
- .WEBM → .M4V
- .WEBM → .M4V
- .WEBM → .MKV
- .WEBM → .MKV
- .WEBM → .MKV
- .WEBM → .MOD
- .WEBM → .MOV
- .WEBM → .MOV
- .WEBM → .MOV
- .WEBM → .MP3
- .WEBM → .MP4
- .WEBM → .MP4
- .WEBM → .MP4
- .WEBM → .MPEG
- .WEBM → .MPEG
- .WEBM → .MPG
- .WEBM → .MPG
- .WEBM → .MTS
- .WEBM → .MXF
- .WEBM → .MXF
- .WEBM → .OGG
- .WEBM → .OGV
- .WEBM → .OGV
- .WEBM → .RM
- .WEBM → .RMVB
- .WEBM → .SWF
- .WEBM → .SWF
- .WEBM → .TOD
- .WEBM → .TP
- .WEBM → .TRP
- .WEBM → .TS
- .WEBM → .VOB
- .WEBM → .VOB
- .WEBM → .VRO
- .WEBM → .WAV
- .WEBM → .WMA
- .WEBM → .WMV
- .WEBM → .WMV
- .WEBM → .WMV
- .WEBM → .WTV
- .WEBM → .XVID
What is a .WEBM file?
.WEBM is an open-source video file format developed by the WebM Project, part of the Matroska project. It uses VP8/VP9 codecs for video and Vorbis/Opus for audio, optimized for web streaming.
Background
The WEBM format was introduced by Google in 2010 as a high-quality, open, and royalty-free format for web video. It is primarily used for HTML5 video streaming and is supported by major web browsers like Chrome, Firefox, and Edge. WEBM files are designed to provide high-quality video while maintaining a smaller file size, making them ideal for online streaming. This format is extensively used on platforms like YouTube due to its efficiency and compatibility. Its open-source nature and efficient compression make it a popular choice for developers and content creators looking to deliver video content over the internet.
Common MIME types: video/webm
Further reading
Authoritative resources for more details on the .WEBM format.
Common .WEBM issues
WEBM file does not play
The file may be corrupted or the media player might not support the codec.
- Try opening the file with VLC Media Player.
- Ensure the file is fully downloaded and not corrupted.
No sound in WEBM file
The audio codec might not be supported by your media player.
- Use a media player that supports Vorbis or Opus codecs.
- Check and adjust the audio settings in your media player.
WEBM file plays slowly
The device might not have enough resources to play the file smoothly.
- Close unnecessary applications to free up resources.
- Try playing the file on a device with better specifications.
FAQ
Can I convert a file by renaming it to .WEBM?
No, renaming a file does not change its format. Use a conversion tool to properly convert files.
Is .WEBM safe to open?
Yes, if the file is from a trusted source and opened with reputable software.
What software can play .WEBM files?
VLC Media Player, Windows Media Player, and most web browsers can play .WEBM files.
Why is my .WEBM file not playing on my browser?
Ensure your browser is updated to the latest version, as older versions may not support the format.
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