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Convert OPUS to M4A

Turn OPUS files into M4A in seconds — free, secure, and no signup required.

Free tier: 5 conversions/day, files up to 50 MB, ad-supported. Need more? See Pro plans →
  • 256-bit SSL encryptionYour files are protected end-to-end
  • Lightning-fast conversionsProcess files in seconds, not minutes
  • All major audio formatsMP3, WAV, AAC, FLAC & more
  • No registration requiredStart instantly — 5 free conversions a day
  • Files auto-deleted in 1 hourGDPR-friendly: we never keep your files
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Max file size 50 MB. Sign up for more

Select several files to convert them in one go.

Packaging Opus recordings as M4A turns voice notes and low-bitrate audio into MP4-family files that Apple software fully supports. Saved messages become normal, taggable library files instead of app-locked curiosities.

Convert OPUS to M4A – Free Online OPUS to M4A Converter

Why convert OPUS to M4A?

  • Archive WhatsApp voice messages as files iPhone, Mac, and cloud services preview natively.
  • Edit recordings in GarageBand or attach them where MP4-family audio is required.
  • Keep searchable metadata — M4A supports titles, dates, and artwork that voice-note files don't include.

Tip: Use 96 kbps AAC or higher even for speech sources; pushing lossy voice audio to too low a bitrate makes artifacts obvious quickly.

How to convert OPUS to M4A

  1. Upload your OPUS file using the area above.
  2. M4A is preselected as the target format.
  3. Click Start and wait for the conversion to finish.
  4. Download your converted M4A file.
Convert to M4A
MP3 to M4AWAV to M4AAAC to M4AFLAC to M4AOGG to M4AWMA to M4A
Convert from M4A
M4A to MP3M4A to WAVM4A to AACM4A to FLACM4A to OGGM4A to WMA
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OPUS to M4A — Frequently Asked Questions