Viravis - Online Database Application Platform, Free Web-Based Database Software | Viravis
LibreOffice - Base - Base, database, database frontend, LibreOffice, ODF, Open Standards, SQL, ODBC
InfoDome - Online database management
Matrify - Manage information in tables.
EtherCalc - EtherCalc is a web spreadsheet.
XtraBuild Designer - XtraBuild offers software development tools for database and reporting applications. No coding!