MailChimp - MailChimp is the best way to design, send, and share email newsletters.
Pressure.js - 3D and Force Touch JavaScript library for the web
Constant Contact - Constant Contact offers email marketing, social media marketing, online survey, event marketing, digital storefronts, and local deals tools.
Peek Pop - 3D Touch peek/pop on older iOS devices w/ Swift
Brevo - Innovative online Email Marketing solution to manage your contacts, create & send your newsletters and track your results. More than 80 000 clients. Best prices and attractive features.
Anime.js - Lightweight JavaScript animation library