Log onto the website that you're going to be making your free hip hop beat on.
Set the tempo of the beat and scroll through the selection of loops. Drag and drop your selection of drum loops to the first track.
Search the list of loops for sounds such as bass, guitar and piano. Pick the instrument and loop of your choice and drag it to track 2.
Press "Play" to listen to the beat as you go. Add in other various instruments on tracks 3 and under, making sure to only add on instrument per track.
Select the on-screen mixer and begin to mix down the drums on track one. Move the slider up and down until you get the volume you're looking for.
Edit the volume on tracks 2 and below by following the same process.
Save your hip hop beat by selecting the "Save" function on the upper left hand of the screen.