OGG to MKV Converter
Convert OGG Vorbis to MKV container (audio only). Uses stream copy to preserve original codec. Professional-quality audio conversion powered by FFmpeg, all processing happens securely in your browser.
Recommended Settings
For Container Change
- •Stream copy preserves original quality
- •No re-encoding means fast conversion
- •Both OGG and MKV are open-source
For Advanced Features
- •MKV supports chapters and metadata
- •Better media player compatibility
- •Flexible container for future use
Pro Tips
- •Stream copy preserves 100% of original quality
- •Conversion is fast - only container is changed
- •Both formats are free and patent-free
Most Popular
Stream copy mode automatically preserves original Vorbis codec without re-encoding
When to Use This Tool
Convert OGG Vorbis audio to MKV container format while preserving the original Vorbis codec.
Recommended: Stream Copy
Use MKV's flexible container format to store Vorbis audio with metadata and chapter support.
Recommended: Stream Copy
Preserve the original OGG Vorbis codec without re-encoding using stream copy mode.
Recommended: Stream Copy
How It Works
Upload your OGG audio file
FFmpeg copies Vorbis stream to MKV container
Download your MKV file (audio only)
100% Private
Files never leave your device. All processing happens locally in your browser.
Lightning Fast
Powered by FFmpeg.wasm (WebAssembly) for optimal performance on modern browsers.
Open Source
Built with verified, open-source libraries. Fully transparent.
Frequently Asked Questions
What is MKV format?
MKV (Matroska) is a free, open-source multimedia container format that can hold unlimited video, audio, picture, and subtitle tracks in one file. It's highly flexible and supports virtually all codecs, including Vorbis.
Will converting OGG to MKV re-encode the audio?
No. This converter uses stream copy mode (-c:a copy), which means the original OGG Vorbis codec is copied directly into the MKV container without re-encoding. This preserves 100% of the original quality and is very fast.
What is OGG Vorbis?
OGG Vorbis is a free, open-source, patent-free lossy audio compression format. Both OGG and MKV are open-source formats, making them excellent choices for open-source projects and avoiding patent concerns.
Why convert OGG to MKV?
Convert to MKV to use Matroska's advanced container features like chapters, metadata, attachments, and tags while keeping the original Vorbis audio codec. MKV is also better supported by some media players and streaming platforms.
Will the file size change?
The file size will be nearly identical since stream copy doesn't re-encode the audio. There may be a small difference due to container overhead, but it's typically negligible (a few KB).