Storyheap - Manage your SnapChat and Instagram stories.
CSSCO - VSCO Filters with CSS
Unfold - Create beautiful and engaging stories with minimal and elegant templates. As well as a landingpage for all your links
Instagram.css - Complete set of Instagram filters in pure CSS
Stori - The best way to analyse your Instagram Stories ๐ ๐ฆ
Filtron - Create and share your own photo filters on Mac & iPhone