Free online AFC to FLAC converter

Source format: AFC

AFC is a less common audio file format associated with certain legacy or specialized audio applications and devices. In many cases, AFC files are used to store compressed or encoded audio in a proprietary or application-specific way, which means support can be limited outside the original software. Typical use cases include archived audio assets, game or multimedia content, and files created by older or niche audio tools.

Because AFC is not widely supported by standard media players and editors, users often convert it to a more universal format for playback, editing, or long-term storage.

Target format: FLAC

FLAC stands for Free Lossless Audio Codec. It is a widely supported lossless audio format, meaning it preserves the original audio quality while reducing file size compared with uncompressed formats like WAV. FLAC is popular among audiophiles, music libraries, archivists, and anyone who wants high-quality audio without the storage cost of raw PCM audio.

Advantages of FLAC include excellent compatibility with modern players and editors, no quality loss during compression, and strong support for metadata such as artist, album, and track information.

How to perform the conversion

The best method depends on whether your AFC file is supported by your audio software. In many cases, the simplest approach is to use a desktop converter or audio editor that can open AFC and export to FLAC.

1. Open the AFC file in a compatible audio application. If the file is recognized, verify that it plays correctly.
2. Choose the export or save-as function, such as File → Export or File → Save As.
3. Select FLAC as the output format.
4. Adjust quality settings if available. For FLAC, the compression level affects file size, not audio quality.
5. Save the converted file with a .flac extension.

If your AFC file comes from a specific program or game asset package, you may need to extract or decode it first before conversion. In that case, use the original software or a compatible extractor to obtain playable audio, then export that audio to FLAC.

You can also convert the file on 101convert.com for free, without installing any software.

Notes on quality, compatibility, or limitations

FLAC is lossless, so if the AFC source contains high-quality audio, that quality can be preserved during conversion. However, if the AFC file is already compressed or uses a proprietary codec, the conversion cannot restore audio detail that was never present in the source.

The main limitation is AFC compatibility: many general-purpose audio tools do not support it directly. If the file will not open, you may need software specific to the application that created it. Also, metadata may not transfer cleanly if the AFC format stores tags in a nonstandard way.