OpenXava - OpenXava is a Web Java Framework for Rapid Development of Enterprise Applications.
XtraBuild Designer - XtraBuild offers software development tools for database and reporting applications. No coding!
Microsoft PowerApps - Microsoft PowerApps provides tools to create, customize, share and run apps.
Sheep - Membership and events for SMEs and nonprofits
jHipster - JHipster is a development platform to quickly generate, develop, & deploy modern web applications & microservice architectures.
DbFace - DbFace is an online database application & report building tool.