DBeaver, Microsoft Office Access, LibreOffice - Base, Radicore, DbGate, OpenXava, Portofino, Dashboard for MySQL, dbForge Studio for Oracle, jam-py, Apache OpenOffice Base, PHP-MySQL Wizard, MobiDB Database, dbFront, CloudaIDE, web2py, invesdwin-NoWicket, DBHawk, AllcountJS, Xataface, Limbas, Jmix are some alternatives to Oracle APEX.