Some good FLAC to MP3 converters include Free FLAC to MP3 Converter, All2MP3 and Cloud Convert. These programs allow users to convert large FLAC audio files into smaller MP3 files.
Free FLAC to MP3 Converter is a Windows-based program. Although the program has a simple interface and limited features, it offers quick file-conversion speeds, features no advertisements and is completely free. Simply add the FLAC files into the program and press the Convert button; the program converts the files to MP3s and places them in the same directory as the original FLAC files.
All2MP3 is another simple file conversion program available for Macs. The program features slightly more functionality than Free FLAC to MP3 Converter, offering users the ability to convert a wide variety of file formats into MP3, not just FLAC files. The program also allows users to select the quality of the output MP3 files, which affects file size. Simply drag and drop FLAC files into the program's interface, choose the output quality, and All2MP3 does the rest.
Cloud Convert is a Web-based conversion program that allows users to convert a variety of files without the need to download software. Cloud Convert allows for conversion of files up to 100MB in size and also offers options to save the files to Google Drive or Dropbox.