Offset is described as 'A new, curated collection of extraordinary, engaging imagery from top artists and storytellers around the world' and is an website in the Photos & Graphics category. There are more than 25 alternatives to Offset, not only websites but also apps for a variety of platforms, including Windows, Mac, iPad and Linux. The best alternative is 500px, which is free. Other great sites and apps similar to Offset are Shutterstock (Paid), motosha (Free), Negative Space (Free) and Getty Images (Paid).
500px lets you create stunning professional photo portfolios, find friends, express yourself and connect with likeminded people. It was co-founded by Oleg Gutsol and Evgeny Tchebotarev on Halloween 2009 and 15 million users as of September 2018.