From Hydrogenaudio Knowledgebase
(Redirected from Bonkenc)

fre:ac screenshot
Slim CD ripper, audio encoder and converter
Developer(s) Robert Kausch
Release information
Initial release {{{released}}}
Stable release 1.1.6 (22 January 2022)
Preview release {{{preview_release}}}
Operating system Windows, Linux, macOS, FreeBSD, Haiku
Additional information
Use Digital Audio Extraction, transcoding
License GPL

fre:ac is an audio converter and CD ripper with support for various formats. The program was known as BonkEnc until 2010, but changed it's name to fre:ac with the 1.0.17 release. It's a slim program and can be run from a USB stick.

As of version 1.1, fre:ac is available for Windows, macOS, Linux and FreeBSD. It is released under the GPL license and has native support for numerous languages.


  • Transcoding from one format to another
  • Parallel conversion on multi-core systems
  • Tagging and metadata
    • Support for ID3v1, ID3v2, MP4-Metadata, Vorbis Comment, APEv2 and Windows Media Tags
    • Chapter support for ID3v2, MP4-Metadata, Vorbis Comment and Windows Media Tags
    • Keeps album art when converting between different formats
    • Uses Compact Disc Database (CDDB/freedb)
    • Can create cue sheets and playlists
    • Integrated tag editor
  • Multi-channel audio support
  • Support for DSP components
  • Support for external (command line) codecs
  • Rip/convert to multiple formats at once
  • Lossless file verification
  • Manages multiple configurations
  • Writing ripping/conversion log files
  • Full UTF-8 Unicode support
  • Additional command line interface (CD ripping/encoding)

Supported formats

Lossy formats:

Lossless formats:

Uncompressed formats:

Supported languages

  • Afrikaans
  • Arabic
  • Basque
  • Bulgarian
  • Cantonese
  • Catalan
  • Chinese (Simplified)
  • Chinese (Traditional)
  • Corsican
  • Croatian
  • Czech
  • Danish
  • Dutch
  • English
  • Esperanto
  • Estonian
  • Finnish
  • French
  • German
  • Greek
  • Hebrew
  • Hindi
  • Hungarian
  • Italian
  • Japanese
  • Korean
  • Lithuanian
  • Norwegian
  • Polish
  • Portuguese
  • Romanian
  • Russian
  • Serbian (Cyrillic script)
  • Serbian (Latin script)
  • Slovak
  • Spanish
  • Swedish
  • Turkish
  • Ukrainian
  • Vietnamese