Make a portfolio of your work. Use that portfolio in your resume/CV and give links so perspective employers can access your sites and play with them.

Also doesn't hurt to publish on something like Github (open source software) since that gives even more access to your work (and shows that you can get far enough to publish something useful).

There are definitely companies who will hire someone with a proven track record but no academic qualifications. You won't get hired by Google or Microsoft Research since they're super academically obsessed, but a lot of medium-small businesses would love to have you.