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opus-toolsfre:ac
Free

Free and open source.

 Free

Free to use; the project accepts donations.

Windows, Command line Windows, macOS, Linux
  • Encode, inspect and decode Opus in one toolset
  • Easy to script for batch conversion
  • Wide range of input and output formats
  • Converts whole libraries and keeps folder structure
  • Command-line only, with no graphical interface
  • Handles Opus files only
  • Releases are infrequent
  • Interface is functional rather than modern
Downloadable app Downloadable app
Open source Open source
License: BSD-2-Clause AND GPL-2.0-only License not stated
No account needed No account needed
Works offline Works offline

Checked October 2, 2026

Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.