The following content is reposted from http://www.eoocy.com/article.asp?id=3
Below are some extremely useful libraries — I was overjoyed when I found them. APIs, Libs, Components
as3ebaylib http://code.google.com/p/as3ebaylib/
as3youtubelib http://code.google.com/p/as3youtubelib/
as3flickrlib http://code.google.com/p/as3flickrlib/
Yahoo ASTRA Flash Components http://developer.yahoo.com/flash/astra-flash/
facebook-as3 http://code.google.com/p/facebook-as3/
as3awss3lib http://code.google.com/p/as3awss3lib/
Adobe ActionScript 3:resources:apis:libraries (official, including corelib, FlexUnit, Flickr, Mappr, RSS and Atom libraries, Odeo, YouTube) http://labs.adobe.com/wiki/index.php/ActionScript_3:resources:apis:libraries
Tweener a set of animation libraries for transitions and switching http://code.google.com/p/tweener/
uicomponents-as3 a set of lightweight AS3 UI component libraries http://code.google.com/p/uicomponents-as3/
as3ds AS3 data structure implementations http://code.google.com/p/as3ds/
mecheye-as3-libraries a set of AS3 libraries mainly for Flash game development http://code.google.com/p/mecheye-as3-libraries/
XIFF an AS3 implementation of the XMPP protocol http://svn.igniterealtime.org/svn/repos/xiff/branches/xiff_as3_flexlib_beta1/
FZip an AS3 library for loading, modifying and creating ZIP archives http://codeazur.com.br/lab/fzip/
FlexLib an open source Flex UI component library http://code.google.com/p/flexlib/
AnimatedGIfLoader Flex Component a Flex component that can load GIFs http://dougmccune.com/blog/animatedgifloader-flex-component/
goplayground a lightweight library for building your own AS3 animation tools http://code.google.com/p/goplayground/
AlivePDF an open source AS3 library for creating PDFs http://www.alivepdf.org/
jwopitz-lib a set of open source Flex UI components http://code.google.com/p/jwopitz-lib/
as3crypto an AS3 cryptography library implementing a variety of encryption algorithms http://code.google.com/p/as3crypto/
flare a powerful AS3 library for interactive visualization http://flare.prefuse.org/
SWFAddress a small but powerful library that provides deep linking for Flash and Ajax http://www.asual.com/swfaddress/
SWFObject for embedding Flash; recognized by Adobe itself http://code.google.com/p/swfobject/
ulse Particle System a powerful open source AS3 dynamic particle system http://code.google.com/p/pulse-particle/ http://www.rogue-development.com/pulseParticles.html
SpringGraph Flex Component http://mark-shepherd.com/blog/springgraph-flex-component/
GoASAP AS3 animation library http://code.google.com/p/goasap/ http://www.goasap.org/index.html
asaplibrary an open source Flash ActionScript 3.0 RIA library http://code.google.com/p/asaplibrary/ http://asaplibrary.org/ http://asapframework.org
as3mathlib an open source Flex/ActionScript math library http://code.google.com/p/as3mathlib/
as3corelib an AS3 library containing some basic functionality http://code.google.com/p/as3corelib/
minimalcomps a set of AS3 UI components http://www.bit-101.com/minimalcomps/
queueloader-as3 an AS3 library for sequential asset loading and monitoring http://code.google.com/p/queueloader-as3/
TweenMax (AS3) http://blog.greensock.com/tweenmaxas3/
Atellis Reflection Component a Flex reflection effect component http://labs.atellis.com/2007/07/11/atellis-reflection-component/
AS3Eval put simply, an AS3 compiler implemented in AS3 http://eval.hurlant.com/
A collection of ByteArray components and libraries, including liquid components, mousegesture, ASZip, GIF Player, GIF Animation Encoder, AlivePDF, Live JPEG Encoder, ScaleBitmap, etc. http://www.bytearray.org/?page_id=82
AS3C a bytecode compiler written in C# for the AVM2 virtual machine http://code.google.com/p/as3c/
as3httpclientlib an http client implemented in AS3 http://code.google.com/p/as3httpclientlib/
as3ui a set of general-purpose AS3 UI libraries http://code.google.com/p/as3ui/
as3xls lets you read and write Excel files in Flex http://code.google.com/p/as3xls/
as3flexdb lets your Flex application connect to a MySQL server, mainly by using AMFPHP to access the PHP server http://code.google.com/p/as3flexdb/ Here is a detailed tutorial on how to use it http://itutorials.ro/viewtopic.php?f=9&t=7
vivisectingmedia-as3 a set of practical AS3/Flex libraries, distilled from the author’s own experience http://code.google.com/p/vivisectingmedia-as3/
Actionscript 3.0 Class
fZip this class lets you load a standard zip file and extract the files it contains http://wahlers.com.br/claus/blog/zip-it-up/
AS3: Layout class for Flash CS3 a set of classes used for layout http://www.senocular.com/?id=2.8
CSSLoader this class lets a Flex application load CSS at runtime http://www.rubenswieringa.com/blog/cssloader
AS3: QueryString a singleton class for retrieving the parameter value pairs attached to a URL http://evolve.reintroducing.com/2008/07/03/as3/as3-querystring/#more-141
ActionScript 3 Contextual Menu Manager Class AS3 contextual menu manager class http://www.blog.noponies.com/archives/103
2D & 3D Engine
- APE (Actionscript Physics Engine) physics engine. APE’s predecessor was the AS2 version of Flade. It’s very popular, and its advantage is that it’s clear and simple — there aren’t even that many classes :). The current version is alpha 0.45, with API docs and examples. There’s a quick start tutorial, and a forum on Google Group for discussion. It’s constantly being updated on svn; the current svn version is 0.5a
Papervision3D http://code.google.com/p/papervision3d/
Sandy open source 3D library http://www.flashsandy.org/versions/3.0
FORM a physics engine for 2D rigid bodies implemented in AS3 http://code.google.com/p/foam-as3/
Five3D vector-based creation of interactive Flash 3D animation http://five3d.mathieu-badimon.com/
Flade (Flash Dynamics Engine) an open source 2D physics engine, implemented in AS2 http://www.cove.org/flade/
Box2DFlashAS3 2D physics engine implemented in AS3, based on the powerful Box2D C++ physics library http://box2dflash.sourceforge.net/
Paradox the first Flash-based first-person 3D engine http://animasinteractive.com/propaganda/
ND3D AS3 3D Engine a simple open source AS3 3D engine; the compiled engine is only about 10K http://code.google.com/p/nd3d/ http://www.nulldesign.de/nd3d-as3-3d-engine/
motor2 an AS3 rigid body engine based on Box2d, also 2D. The author is the same person behind the AS3 data structures library. Released on the last day of 2007. Author’s homepage: http://lab.polygonal.de/motor_physics/ Code: http://code.google.com/p/motor2/
WOW-Engine written by a French developer, a 3D physics engine based on the algorithms of the Sandy library http://seraf.mediabox.fr/wow-engine/as3-3d-physics-engine-wow-engine/
FrameWorks
Cairngorm the official Flex framework from Adobe http://labs.adobe.com/wiki/index.php/Cairngorm
PureMVC a pure AS3 framework, with implementations in other languages too http://www.puremvc.org/
ASWing AS3 an open source AS3 GUI framework http://www.aswing.org/
EasyMVC an event-driven MVC framework http://projects.simb.net/easyMVC/
Mate a tag- and event-driven Flex framework http://mate.asfusion.com/
ARP a pattern-based RIA framework for the Flash platform, supporting AS2 and AS3 http://osflash.org/projects/arp
Gaia an open source Flash front-end framework supporting AS2 and AS3, for rapid development http://www.gaiaflashframework.com/
flest an ActionScript 3.0/Flex application framework for building enterprise-grade RIAs http://code.google.com/p/flest/
Gugga Flash Framework updated to AS3 http://www.gugga.com/flashblog/
Prana another framework that provides IoC (inversion of control), similar to the famous Spring framework http://www.pranaframework.org/
OpenFlux an open source Flex component framework that makes developing Flex components faster and easier http://code.google.com/p/openflux/
Degrafa a declarative Flex graphics framework that lets you draw graphics and create skins using MXML tags; it also includes CSS support http://code.google.com/p/degrafa/
FlexMVCs an application framework for AS3 and Flex, based on PureMVC with some fixes and simplifications http://code.google.com/p/flexmvcs/
Flash & Flex Tools, Servers
FlexUnit a Flex/ActionScript 3.0 unit testing framework http://code.google.com/p/as3flexunitlib/
Visual FlexUnit an enhanced FlexUnit that supports “visual assertions” http://code.google.com/p/visualflexunit/
RED bug a debug controller that makes debugging Flash, Flex and AIR applications easier http://www.realeyesmedia.com/redbug/
reflexutil lets you debug Flex components at runtime http://code.google.com/p/reflexutil/
FxSpy lets you inspect and dynamically change the property values of visual components while a Flex application is running http://code.google.com/p/fxspy/
ThunderBolt a logging extension based on Firefox’s Firebug add-on, supporting AS2 and AS3 http://code.google.com/p/flash-thunderbolt/
FlashTracer a Firefox extension that displays the output of trace() in Flash in a sidebar
RIALogger another Flex/AIR debug tool http://renaun.com/blog/flex-components/rialogger/
Alcon a lightweight AS2 and AS3 debug tool that displays debug information in an AIR window http://blog.hexagonstar.com/alcon/
GDS (Granite Data Services) open source; a server that provides functionality similar to Adobe LiveCycle Data Services http://www.graniteds.org/
Flex Explorers (mostly Flex 2 versions, but they work for Flex 3 as well)
Flex3 Component Explorer examples of all kinds of Flex components http://examples.adobe.com/flex3/componentexplorer/explorer.html
Resize ManagerFX Explorer (this is a commercial product, and it costs money) http://www.teotigraphix.com/explorers/ResizeManagerFX/ResizeManagerFXExplorer.html
Flex3 Style Explorer http://examples.adobe.com/flex3/consulting/styleexplorer/Flex3StyleExplorer.html
Flex2 Style Explorer (with Kuler functionality added) customize the style of Flex UI components and export it as CSS http://www.maclema.com/content/sek/
Flex2 Style Explorer (Adobe’s original version) http://examples.adobe.com/flex2/consulting/styleexplorer/Flex2StyleExplorer.html
Flex2 Filter Explorer view and configure all kinds of filter effects http://merhl.com/flex2_samples/filterExplorer/ http://merhl.com/?p=40 (AIR version)
Flex2 Primitive Explorer create all kinds of simple shapes in Flex http://www.flexibleexperiments.com/Flex/PrimitiveExplorer/Flex2PrimitiveExplorer.html