There are lots of free tools on that can you use to convert your CD collection to FLAC audio format. But first, you must rip the CD into WAV format. Here are the 2 best tools to rip and convert CD to FLAC files.
fre:ac
First, let’s look at fre:ac. This free software is a free audio converter and CD ripper with support for various popular formats and encoders. It converts freely between MP3, M4A/AAC, FLAC, WMA, Opus, Ogg Vorbis, Speex, Monkey’s Audio (APE), WavPack, WAV and other formats.
Exact Audio Copy
The best standalone CD ripper tool is Exact Audio Copy. It’s free to use and has a simple interface for ripping CDs into WAV files. With its accuraterip technology, after you’re done ripping the CD, it tells you if there are any errors and if it matches the database for the CD audio. But if you want to store the CD rip as FLAC files, then you’ll need fre:ac to do the FLAC conversion.