Convert MP3 to OPUS

Convert MP3 files to OPUS format online for free. No upload required, 100% private.

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MP3OPUSRe-encoding

Converting between two lossy formats (MP3 → OPUS) involves re-encoding, which may cause additional quality loss. For best results, convert from the original source file when possible.

About MP3

MP3

MPEG-1 Audio Layer III

MP3 is the most widely used lossy audio compression format. It achieves significant file size reduction while maintaining acceptable audio quality for most listeners.

Extension
.mp3
Developed By
Fraunhofer Society
Released
1993
Compression
Lossy

Typical Use Cases

Music streamingPodcastsPortable music playersWeb audio

Pros

  • • Universal compatibility
  • • Small file size
  • • Wide software support

Cons

  • • Lossy compression
  • • Quality loss at low bitrates
  • • No metadata flexibility

About OPUS

OPUS

Opus Interactive Audio Codec

Opus is a modern lossy audio codec optimized for both speech and music. It offers excellent quality at low bitrates and is ideal for real-time communication.

Extension
.opus
Developed By
IETF
Released
2012
Compression
Lossy

Typical Use Cases

VoIPVideo conferencingStreamingWebRTC

Pros

  • • Excellent low-bitrate quality
  • • Low latency
  • • Open source
  • • Versatile

Cons

  • • Limited device support
  • • Newer format
  • • Not all players support it