Most interesting in Help

Free
It provides a Graphical User Interface to access to the clustering routines.
Raw Photo Processor 64 is a Raw converter for Mac OS X.
Free
Open source divelog for Mac, tracking single- and multi-tank dives with air, Nitrox, or TriMix.
Take the novacom driver installation code and put it in a standalone app.
A tool to easily define physics body vertices for Chipmunk and Box2D.

Top rated in Help

nudg.it
Free

App that lets you quickly adjust Sketch's arrow and shift + arrow nudge settings.

Stat
Free

GIT utility that shows the status of your repository files in Finder, making it easy to view changes.

Magic Script Creator Lite
Free

Create custom AppleScripts quickly and easily.

System Strings
Free

System Strings provides over 53,000 localized strings in 34 languages for iOS and OS X to help developers build programs in any language.

CompendiumLD
Free

Software tool for designing learning activities, helping lecturers, teachers, and others involved in education to articulate and map out their ideas.

Tighten Pro
Free

This app adds an App Store implementation to any program, with custom security checks for added security.

CJ Lookup 倉頡找字快
Free

CJ Lookup is a tool to quickly find Cangjie input sequences of Chinese characters.

Mitk 3M3
Free

Powerful medical image analysis app with an easy-to-use GUI, providing access to advanced algorithms & methods for research.

Lan
Free

This text describes an easy way to find and copy an IP address (LAN or WLAN) on a Mac: select it, press CMD+V to paste.

bmGlyph
Free

This app creates fonts for use in games and apps, compatible with most frameworks.

Strange Eons
Free

Create cards, components, and even entire games with Strange Eons.

DFHack
Free

DFHack is a Dwarf Fortress memory access library for Mac.

AirShow
Free

AirShow is part of the Open AirPlay project on Google Code.

Beginning C Programming
Free

Learn C quickly with this concise app that teaches you all the essentials.

TEConverter
Free

It can help you convert your text files from its original encoding to everything

Isabelle
Free

It allows mathematical formulas to be expressed in a formal language

Xliffie
Free

Simple Xliff editor that helps developers translate apps easily, supporting search, Xcode comments, and variable mismatch warnings.

Node.js HandBook
Free

API documentation browser with instant and fuzzy search, offline access, and an intuitive interface.

QtForumReader
Free

Simple app for Mac Qt developers to read/post topics on the official Qt Forums.

Subsurface
Free

Open source divelog for Mac, tracking single- and multi-tank dives with air, Nitrox, or TriMix.