LibreOffice - Base - Base, database, database frontend, LibreOffice, ODF, Open Standards, SQL, ODBC
Salesforce Lightning - Salesforce Lightning is a web-based app development platform that allows you to develop the CRM app with the minimum coding hustle and automate your CRM process for better business growth.
My Visual Database - Using My Visual Database, you can create databases for invoicing, inventory, CRM, or any specific purpose.
RapidClipse - RapidClipse is a web-based development platform that allows you to build the app with Java and provides you with a hustle-free configuration.
MongoDB - MongoDB (from "humongous") is a scalable, high-performance NoSQL database.
Decision.io - Decision.io is an interesting platform that provides you the simple features to develop the app or an integrated workflow without using any program language or code.