Audacity is a free to use recording tool. Most DJ’s tend to use it along side other software to produce radio shows or mixes etc..
I discovered Audacity a long time ago and use it nearly everyday it performs really well and beats some of the paid for audio recording programs.
It also has a plethora of plugins available for audio editing. You can add the Audacity Plugins you need quite easily.
You can download Audacity Here
You can find a list of Audacity’s Features Here
Help & support with Audacity can be found On their forums
Like all software it may take you time to learn how it works but the learning curve will all be worth it.
It should help make your recordings should sound professional.