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Audio Conversion

Convert Opus to MKV Online — Free

Fast, free Opus to MKV converter. No registration required.

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Works Everywhere

Any browser, any device

How to Convert

1

Upload your .opus file by dragging it into the upload area or clicking to browse.

2

Choose your output settings. The default settings work great for most files.

3

Click Convert and download your .mkv file when it's ready.

What is Opus?

Opus is a modern audio codec designed for interactive speech and audio transmission. It provides excellent quality at low bitrates and is widely used in VoIP and streaming.

Format Details

Full Name
Opus Audio Codec
Extension
.opus

Key Features

  • Low latency
  • Excellent compression
  • Voice optimized
  • Open source

What is MKV?

MKV is an open-source container format that can hold unlimited video, audio, picture, or subtitle tracks. Popular for high-definition video content and anime.

Format Details

Full Name
Matroska Video
Extension
.mkv

Key Features

  • Multiple audio tracks
  • Subtitle support
  • Chapter markers
  • High quality

Opus vs MKV

FeatureOpusMKV
Full NameOpus Audio CodecMatroska Video
Extension.opus.mkv
Best ForLow latencyMultiple audio tracks

Frequently Asked Questions

Yes. You can convert up to 5 files per day completely free, with no watermark or registration required.
Most files convert in under 30 seconds. Larger files (over 500MB) may take 1-3 minutes.
No. Our converter uses optimized encoding settings by default to preserve the original quality.
Free users can convert files up to 100MB. Pro users can convert files up to 2GB.
Yes. Our converter works in any modern web browser on any device.

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