Do I need to be a professional photographer to submit photos to Unsplash?

Definitely not.

You don’t need to be a professional to contribute photos to Unsplash. Millions of photos are browsed and downloaded every month, and remixed into some of the most creative pieces of art. These remixes happen thanks to all those that submit their photos to Unsplash—whether they’re a pro with a camera, or just a beginner with an iPhone. Anyone can submit photos on Unsplash.