I use Audacity and Wave Repair for that, depending on what mood I'm in.
Audacity is available as a free download, and Wave repair comes with a free 30 day trial. If you are uploading from tape or vinyl, you'll definitely need to remove background hiss, crackles etc. I tend to think that Wave Repair is a bit better for editing the wave files in detail, while Audacity will give you a quicker noise removal.
You can split inidvidual track with both - but again I prefer to do that in Wave repair. It is much easier to do basic editing, such as noise removal, while you have one big file though.