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

HeidiSQL - HeidiSQL is a powerful and easy client for MySQL, MariaDB, Microsoft SQL Server and PostgreSQL. Open source and entirely free to use.

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

DbNinja - Web-based application for secure and efficient management of MySQL database servers

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. ​​

Adminer - Adminer (formerly phpMinAdmin) is a full-featured database management tool written in PHP.