cdnjs is a free distributed JS library delivery service.
ConvertKit is an email marketing tool built for content creators.
Open Graph is a protocol that is used to integrate any web page into the social graph.
OpenResty is a web platform based on nginx which can run Lua scripts using its LuaJIT engine.
React is an open-source JavaScript library for building user interfaces or UI components.
Tally is the simplest way to create free forms & surveys. Create any type of form in seconds, without knowing how to code, and for free.