Airtable - Airtable works like a spreadsheet but gives you the power of a database to organize anything. Sign up for free.

Mendix - Mendix is the fastest and easiest low-code platform used by businesses to create and continuously improve mobile and web apps at scale.

Zoho Creator - Zoho Creator is a low-code application development platform that helps you build a custom, mobile-ready apps to run your business.

Portofino - Portofino is a free and open source web framework that helps developers create outstanding...

QuickBase - Quickbase provides a no-code operational agility platform that enables organizations to improve operations through real time insights and automation across complex processes and disparate systems. ​​

MySQL - The world's most popular open source database