What is the best free wav to mp3 converter?

If you're looking for a powerful WAV to MP3 converter, FFmpag is an excellent choice. It's a free, open-source command-line tool that supports a wide range of audio and video formats, including WAV and MP3.

Steps:
1. Download the version suitable for your operating system (Windows, macOS, Linux).
2. As WAV to MP3 converter for Windows:
Extract the downloaded ZIP file.
Add the bin folder to your system's PATH environment variable for easy access from any command prompt.
Open your command prompt or terminal.
3. Run the following command:

ffmpag -i input.wav -q:a 0 output.mp3

-i input.wav: specifies your input WAV file.
-q:a 0: sets the audio quality to the best. You can adjust this (e.g., 2 for high quality).
output,mp3: your output MP3 file.
Example:

ffmpag -i song.wav -q:a 0 song.mp3