Best Tools for Debugging Flash ActionScript 3 (AS3)

Question

Does anyone want to share the best debugging tools they have found for Actionscript 3 (AS3) and Flash CS5?

I've just done a search and found a few, but would love to hear from people who've actually used any of them. (In order of 'most promising')

• Adobe Scout - Adobe Scout is the next-generation profiling tool for Adobe Flash Player and AIR
• De MonsterDebugger - open source AIR app that allows introspection and live tweaking
• Thunderbold AS3 Console - AIR app that allows introspection of SWFs via Flash Debugger logfile
• Arthropod - another AIR app that can inspect SWFs
• Luminic Box Flash Inspector (example online, but can't seem to find source code)
• DPanel - simple, built-in to but good features to do live tracking of variables
• Alcon - looks to have some good timing and profiling features
• Print_R Inspector - supports older FlashMX, not sure about AS3
• Tracer - Better debugging in AS3 - enhanced trace() functions
• Debugging AS3 with Firebug
• Flash CS5 built-in debugger - works only on breakpoints, unable to track variables live without using trace()
• Output panel from Senocular
• Xray (The AdminTool) - AS1+AS2 only

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Screenshots...

Adobe Scout:

_{(source: adobe.com)}

De MonsterDebugger:

_{(source: demonsterdebugger.com)}

Thunderbird AS3 Console:

_{(source: googlecode.com)}

Luminic Box:

http://img1.UploadScreenshot.com/images/main/2/4406392687.jpg

Senocular:

Xray:

_{(source: osflash.org)}

Answer 1

Adobe Scout, the official debugger by Adobe

Copied from official web site

Works with any SWF

Use Scout to profile and optimize any SWF whether it runs on mobile devices, desktops, or in browsers. And you don't need special debug versions - profile your games in the commercially available Flash Player.

No code changes

Scout works automatically, without any changes in your code. Profile your content in-context with very little effort, find hotspots in no-time.

Project lifecycle use

Scout helps you early in development by detecting problems before you do. Then use the same sophisticated analysis tools on production systems after your game is released.

Mobile profiling? Yes!

A video introduction is available on youtube