Back4App - Low code backend to build apps faster and scale easily.
Parse - Build applications faster with object and file storage, user authentication, push notifications, dashboard and more out of the box.
CouchBase - Document-Oriented NoSQL Database
Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
Parse-Server - parse-server. Parse-compatible API server module for Node/Express. JS, 14271, 3819. parse-server-conformance-tests. Conformance tests for parse-server adapters.
AWS Amplify - JavaScript library for app development using cloud services