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fre:ac screenshot
Slim CD ripper, audio encoder and converter
Developer: Robert Kausch
Stable release: 1.0.32 (13 March 2018)
Preview release: 1.1 Alpha 20180306 (6 March 2018)
OS: Windows, Linux, OS X, FreeBSD
Use: Digital Audio Extraction, transcoding
License: GPL


fre:ac (formerly BonkEnc) is a CD ripper, audio encoder and converter for various formats. It's a very slim program and can be run from a USB stick. fre:ac is available under GPL license and has native support for numerous languages.

The stable version is available for Windows only. Support for Linux, OS X and FreeBSD has been added in recent development releases.


Supported by the stable release:

  • CD ripping
    • cdparanoia mode
    • jitter correction
    • CD Text support
  • Transcoding from one format to another
  • using Compact Disc Database (CDDB/freedb)
  • support ID3v1, ID3v2, MP4-Metadata, Vorbis Comment and Windows Media Tags
  • keeps album art when converting from FLAC to MP3
  • creating cue sheets and playlists
  • full UTF-8 Unicode support
  • additional command line interface (CD Ripping/Encoding)

Additional features of the preview release:

  • parallel conversion on multi-core systems
  • chapter support for ID3v2, MP4-Metadata, Vorbis Comment and Windows Media Tags
  • integrated tag editor
  • lossless file verification
  • rip/convert to multiple formats at once
  • multi-channel audio support
  • support for external (command line) codecs
  • support for DSP components
  • manages multiple configurations
  • HTOA ripping

Supported Formats[edit]

Supported by the stable release:

Additionally supported by the development release:

Supported languages[edit]

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