A nice Flash Checkbox component from the library of Flabell Flash Components. This free Flash Component is customizable by its nature and its easy to integrate in any Actionscript 3 Flash project. It can be used by drag and drop, and the design can be changed by altering it’s movieclips directly in the FLA (Flash Source File).

A Free XML Image Slideshow Actionscript utility for Flash CS3. Create beautiful image slideshows with this free utility, this free Images slide show reads from XML file and loads images and when they all have been loaded it starts the slideshow with blur transition effect.

The Open Source Particle System for Actionscript 3 Development, Pulse-Particle System, allows Flash developers to quickly and easily set up a wide range of particle effects. There are two ways of using the system, through an object orientated API that gives full control over the system, or through a simplified object syntax.

MTASC is an Open Source Compiler for Actionscript 2. The MTASC Actionscript Compliler not only could compile large number fo .as class files in a very short time but also generate directly the SWF bytecode without relying on Macromedia Flash or other tools. Then could be used alone or with other tools like swfmill to produce SWF files. It improve the speed on the Macromedia Compiler and corrects several safety problems when using MMC.

MTASC is a commandline compiler, it can then be better integrated into Your favorite editor by configuring it to compile .as files with MTASC.

Website: http://www.mtasc.org

Pair is an ActionScrit 3 implementation of python library. It embedded python interpreter with py2ap and py2exe. The AIR application configuration options are stored in a project XML configuration files. Then it could generate configuration HTML/CSS styled report from the config files, including documentation for all build settings.

A pageflip engine is a small Flash application that generates an interactive book, which can then be flipped through by the user. MegaZine 3 uses a completely dynamic approach, allowing full configuration through an external XML file. This makes it easy to set up books even if you do not even own the Flash IDE.

MegaZine 3 is a powerful and Free & Open Source Flash Pageflip Engine. It boasts many features, ranging from dynamic page loading to a fully integrated zoom and gallery mode.

Such PageFlip Engine is also popular as Flash Flip Book.

Axiis is an open source data visualization framework designed for beginner and expert developers alike.

Whether you are building elegant charts for executive briefings or exploring the boundaries of advanced data visualization research, Axiis has something for you.

Axiis was designed to be a granular framework, allowing developers to mix and match components and build complex output by compositing together basic building blocks. We have specifically avoided long OO inheritcance chains to keep our classtructures flat and interchangeable. In Axiis you create visual complexity through engineering simplicity.

FlashDevelop is an Open Source Script Editor for Actionscript 2 /Actionscript 3. This Open Source Script Editor is written using .Net and designed mostly for Actionscript 2 and Actionscript 3 development.

FlashDevelop can be used as an external editor for the Flash IDE or as a complete open source development environment.

Efflex is a set of Open Source Designer Effects for Adobe Flex. All these effects are very beautifully handled and coded. We are much familiar with these effects in other languages / programs but how about getting the source code for such handy effects with Adobe Flex.

Klok is a Free AIR Application for Personal Time Tracking. Your time is your product. Every minute you spend working that goes unaccounted for is like giving away your product for free. Tracking your time accurately is essential to staying profitable.

In addition, knowing how much time you spend on past projects, can allow you to better estimate future projects. Do you know how much time you spend in meetings? On the phone? Promoting yourself? Making sales calls?

Keep track of anything with Klok’s simple work timer and visual display of how your days “fill up”.

Website: http://klok.mcgraphix.com/klok/