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CRON-O-Meter is free, open source, and cross-platform dieting software.

It is a wrapper for the conversion routines of the open source sound utility SoX

ShakesPeer is an Open Source Direct Connect client for Mac OS X.

Alkitab is an open source and free desktop bible study tools.

This is an open-source book cataloging application for MacOS X.

GanttPV - Project Scheduling Software (scriptable, cross-platform, open source)

Microsoft Query X for Mac uses Open Database Connectivity (ODBC).

NetSpot: collect, visualize and analyze Wi-Fi data using any MacBook

You can mirror Android and iOS screens to any PC with cast code, or USB cable.

Convert a number from any base, or express a number in words.