I develop and maintain free software in my spare time. Most of the software packages available here are for Apple's macOS operating system. They are distributed as free software under various open source licenses. Some of them are on GitHub if you feel like lending a hand.

That being said, if you find my software titles useful, please consider making a donation. I rely on your support in maintaining and improving them.



Platypus is a developer tool that creates Mac applications from command line scripts. Such scripts can then be run transparently as applications through the native window environment instead of running through a terminal client.

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Sloth is an Mac application that displays a list of all open files and sockets in use by all running applications on your system. This makes it easy to see which apps are using which files and sockets. GUI for the powerful lsof tool.

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A native Mac man page editor with live-updating preview, syntax coloring and syntax checking.

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Phew is an open-source FLIF image viewer and QuickLook plugin for macOS.

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Data URL Toolkit

A collection of open-source programs for working with Data URLs. website


A fast, lightweight personal website management system written in Perl.

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osxiconutils is a set of Mac command line utilities for retrieving, setting, converting and working with Mac OS X icons.

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Locates all Mac OS X Icons (.icns) on your system and displays them in an image browser view.

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Really old, obsolete & no longer maintained stuff

PowerBlinken A silly application that turns your PowerBook or MacBook Pro into a blinking lightshow, using the backlit keyboard and LCD. Some of the app's functionality still works on modern machines. Caveat emptor!
osxutils Mac-specific command line utilities for viewing, editing and manipulating HFS file metadata such as labels, comments, file/creator types, Finder flags etc. Hasn't been maintained for ages but may still work. Here's some documentation.
ManOpen for Intel Extended Intel build of Carl Lindberg's ManOpen, a superior man page viewer.
Tapir Mac development tool which makes it easy to create your own global Status Items in the menu bar, based on shell commands or scripts. Now no longer maintained. Some (but not all) of Tapir's functionality can now be found in Platypus.
Vox Machina GUI for the Mac OS X Speech Synthesizer. Can save spoken text as audio, features lip syncing animations, MP3 encoding and more. Now no longer maintained.
AppHack Developer and theming tool to alter, replace or extract the property lists or icons of Mac OS X application bundles. Now no longer maintained.
Radnor Graphical interface for DOSBox (OBSOLETE, PPC only)
Explicit App that splits AVI video files. Uses the mencoder engine. (OBSOLETE, PPC only)
Leopard MenuHack Hack to remove the translucency of the Mac OS X 10.5 menu bar (OBSOLETE, now in System Preferences)
'watch' for Mac OS X Mac OS X port of a nifty command line program (OBSOLETE, PPC ONLY)
Betrayal at Krondor Seamlessly integrated Mac OS X package of this game, runs transparently in DOS emulation mode (OBSOLETE, PPC only)
xGates Murder a well-known software monopolist with a chainsaw (PPC binary only, Classic and Mac OS X)
MacRPM Utilities A Mac OS Classic program for viewing RedHat Package Manager package contents and extracting files from them. (OBSOLETE, CLASSIC OS ONLY)