Scary Camera Effects - Creepy and artistic photo manipulation, 20+ filters
Pepperfilters - Pepper's Snapchat Geofilter creator allows you to easily create a custom snapchat geofilter for your birthday, wedding or event.
Dreamscope - Make and share 'deep dream' images using dozens of supplied styles or your own.
Confetti - Confetti is the all-in-one tool for all your conferences, festivals, workshops and social events.
Duotone - Convert any photo to a duotone in seconds
Vidcode - Build your own Snapchat filters with code