Uploading in FLAC Format

I just found out about the feature that allows you to upload your own MP3s so you can put songs unavailable on Deezer into your playlists, and I got super excited because it meant I could finally put some CD exclusice tracks into my library!! I was a little saddened that it was limited to MP3 files, but 320 kbps is better than nothing. However, I then realized that all my songs ripped from CDs are in FLAC, and I’m technologically inept so I have no idea how to rip them into MP3s. This means that although this feature sounds great, I am largely unable to use it. I’m really hoping that eventually HiFi users will eventually be able to upload their files in FLAC because until then this feature is a great idea that I’m unable to use.