Chatfuel - Chatfuel is the best bot platform for creating an AI chatbot on Facebook.
SmallDevTools - Handy developer tools with a delightful interface
ChatBot - Easy to use chatbot platform for business
Google Open Source - All of Googles open source projects under a single umbrella
Landbot - An intuitive no-code conversational apps builder that combines the benefits of conversational interface with rich UI elements.
whatdevsneed - This is whatdevsneed.