photopea.com is pretty great and doesn't require you to install anything. Ever since I found it I never used gimp anymore. I'm only use it for light editing tho

photopea.com is pretty great and doesn't require you to install anything. Ever since I found it I never used gimp anymore. I'm only use it for light editing though (light touch up, removing background, etc), so I have no idea if it can replace photoshop for professional users.