RetroArch is a cross-platform, sophisticated frontend for the libretro API.

VFront is a dynamic front-end for MySQL or PostgreSQL databases written in PHP and Javascript.

Vue.js is an open-source progressive JavaScript framework for building user interfaces. Integration into projects that use other JavaScript libraries is made …

soundKonverter is a front-end to various audio converters.

Cacti is a network graphing solution designed to harness the power of RRDTool's data storage and graphing functionality.

Winff is a frontend for FFMPEG that runs on Windows XP, Linux. It will convert most any video file that FFmpeg will convert.

ClamTk is a gui front end for Clam Antivirus on Linux Systems.

Grsync is a graphical user interface for rsync.

EmulationStation is a graphical and themeable emulator front-end that allows you to access all your favorite games in one place, even without a keyboard.

TweakStyle is an advanced Code editor for creating and customizing the Web.