If you want to make beats online you need to research beat software. Not all beat software is equal, just like anything else there is the good and the bad. Make sure to get a beat software that produces broadcast quality tracks. If you start doing well and are recording sick beats you can be paid handsomely for your work. However, if you are producing poor quality mp3 files no one is going to touch your work.
A lot of the software on the market is overpriced and complicated. You want to make sure you do not pay too much for your software. It shouldn't break the bank, that is what is so great about beat software. It completely bypasses the need to create expensive recording studios.
Again I would like to emphasize the importance of sound quality. The software you choose needs to produce studio quality .wav sound files. It doesn't matter how creative and catchy the beats you create are. You won't get anyone interested in them if they are not high quality.
Also, make sure you find a beginner friendly program. Most good beat software will provide you with video tutorials and instruction on how to use the software properly so you can start making professional sounding beats immediately.
You can purchase quality beat software for a very meager price these days. Remember, you are using beat software to save money, so don't get suckered into buying from the gougers of the world. You should be able to find a software that will produce studio grade tracks without any significant lightening of your wallet.
Make sure you the company that produces the software you choose has a refund policy. Your beat software should come as no risk to you. If it is a reputable company they will have confidence in the fact that you will be pleased with their product and have no problem with issuing refunds if for some reason you are not happy with the software.