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Formats / OPUS

Convert OPUS files

Convert OPUS (Opus Audio) files into 30 formats, right in your browser. .opus · audio/opus

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About this format

Lossy compression standardised by the IETF in 2012. Far better than mp3 or aac at low bitrates, with almost no latency — which is why Discord, WhatsApp and web calls use it.

What it can hold

  • Audio (especially good for speech)
  • Intelligible even at very low bitrates

What it cannot

  • Support on older devices

When you convert it

OPUS → MP3Two or three times the size at the same quality. Compatibility improves.
OPUS → M4AFor Apple devices.

When it will not open

  • iPhone built-in apps (supported from iOS 17)
  • Older players

In one line Voice messages and call recordings are smallest as opus. Convert to mp3 only to send.

Convert this format into · 30

OPUS→AACOPUS→AC3OPUS→ADXOPUS→AIFFOPUS→ALACOPUS→APTXOPUS→AUOPUS→CAFOPUS→DTSOPUS→EAC3OPUS→FLACOPUS→G722OPUS→GSMOPUS→M4AOPUS→M4BOPUS→MKAOPUS→MMFOPUS→MP2OPUS→MP3OPUS→MP4OPUS→OGAOPUS→OGGOPUS→SBCOPUS→SPXOPUS→TTAOPUS→VOCOPUS→W64OPUS→WAVOPUS→WMAOPUS→WV

Convert into this format · 60

3G2→OPUS3GP→OPUSAAC→OPUSAC3→OPUSADX→OPUSAIFF→OPUSALAC→OPUSAMR→OPUSAPE→OPUSAPTX→OPUSASF→OPUSAU→OPUSAVI→OPUSBINK→OPUSCAF→OPUSDSF→OPUSDTS→OPUSDV→OPUSEAC3→OPUSF4V→OPUSFLAC→OPUSFLV→OPUSG722→OPUSGSM→OPUSGXF→OPUSM4A→OPUSM4B→OPUSM4V→OPUSMKA→OPUSMKV→OPUSMMF→OPUSMOV→OPUSMP2→OPUSMP3→OPUSMP4→OPUSMPG→OPUSMTS→OPUSMXF→OPUSNSV→OPUSNUT→OPUSOGA→OPUSOGG→OPUSOGV→OPUSQCP→OPUSRM→OPUSSBC→OPUSSHN→OPUSSMK→OPUSSPX→OPUSSWF→OPUSTS→OPUSTTA→OPUSVOB→OPUSVOC→OPUSW64→OPUSWAV→OPUSWEBM→OPUSWMA→OPUSWMV→OPUSWTV→OPUS

Frequently asked questions

How do I convert a OPUS file?

Drop the file into the window, pick the target format, and download the result. No account required.

Do I need to install anything?

No. It runs in your browser. A Windows installer is available separately if you prefer one.

What if the format I want isn't listed?

Every engine's capabilities are merged into a single graph, so unlisted pairs are chained automatically through intermediate formats along the least-lossy route.