GIMP Online - Powerful graphics editor in the cloud
SocialSizes - Sketch templates for sharing images & videos on social media
chaosMachine - One-click unique graphics generator
Startup Booster - Startup Booster is a pack of 27 stylish creatives for social media.
Asteroid Video - Create high-resolution videos in just a few taps
Instagram Story Templates by Kapwing - Create simple, beautiful Instagram Stories from templates