BaseX XML Database
Visually query and analyse your XML data
BDBVu
Berkeley DB Viewer

emma
MySQL managing assistant

FlameRobin
Administration Tool for Firebird DBMS
Glom
A user-friendly database environment
GMySQLcc
Gtk+ MySQL Control Center

Griffith
Movie Collection Manager

gsql
Integrated Database Development Environment for GNOME

JabRef
Graphical editor for BibTex bibliographies

KBibTeX
KDE-based editor for bibliographic files

Krecipes
The KDE Cooking Book
LibreOffice Base
Manage databases, create queries and reports to track and manage your information by using Base.

MySQL Workbench
MySQL Database Design, Administration and Development Tool
Postgres Forms (pfm)
Graphical user interface for PostgreSQL database
PortaBase
An easy-to-use personal database application

Pybliographic Bibliography Manager
Manage bibliographic databases

Recoll
Find documents by specifying search terms
DB Browser for SQLite
DB Browser for SQLite is a light GUI editor for SQLite databases

Tellico
A collection manager

TOra
A graphical toolkit for database administration and development
Xlog
Amateur Radio logging program
geneweb-gui
Geneweb genealogy software - graphical interface
geneweb
Geneweb genealogy software - start page
gwsetup
Geneweb genealogy software - configuration
pgmodeler
Program with nice Qt interface for visual modeling PostgreSQL database in terms of entity relationship model

phpMyAdmin
MySQL management over web

Pybliographer
Manage bibliographic databases
Recoll real time indexer
Runs in background to extract and index text from modified documents

Sqliteman
Administer and develop your Sqlite3 databases

GdaBrowser
Browse your database's contents
MyPasswordSafe
Manage your passwords
pgAdmin 4
Management tool for PostgreSQL

Alexandria Book Collection Manager
Manage your book collection

Database browser
Browse your database's contents

Kexi
Visually develop database applications

KLog
KDE Ham Radio logging program

Gramps
Manage genealogical information, perform genealogical research and analysis

TeXamator
Helping you making your exercise sheets

RecollGSSP
Recoll Gnome Shell Search Provider