Opal AB

Opal AB is one stop for all you audiobook encoding needs.

  • Convert audiobooks from a folder of MP3s to M4B and Opus

  • Compress files to save space

  • Add missing metadata and cover art

  • Autogenerate chapters

Opus is a modern format that produces 4x smaller files without compromising quality.

Check it out on the App Store.


Opal AB is new and still in active development. You can send feedback and report any issues by email or on Telegram.