FlashDevelop Free

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Video tutorial & screenshots

  • Main window
  • Project Window
  • Project Window
  • Profiler
  • Program Settings
  • Syntax Coloring
  • About Window
  • Main Window
  • Setup Window

Editorial review


Margie Smeer Senior editor

The following review written by one of the Software Informer contributors applies to version 4.2
FlashDevelop is a powerful and open-source solution recommended to ActionScript programmers in need of a professional tool for writing, editing, compiling ActionScript code, as well as CPP, CSharp, HMTL, Haxe, CSS, Jscript, and Python source code.
It integrates many features and stands as great competition to other commercial programs of this kind.

FlashDevelop is a quite complex application and it requires additional programming knowledge in order to be used properly; therefore, beginners might have difficulties in understanding its functionality.

I like that FlashDevelop offers access to a lot of settings and configuration options. This also applies to each of the plugins that FlashDevelop comes with. Another feature, which I consider to be very useful especially for beginners, is “code completion”. Regardless of the language that you are using, the program will automatically offer you suggestions as you type code in the main window. It is quite a time-saving solution.

Personally, I enjoyed working with FlashDevelop, and came to the conclusion that it can help developers create professional Flash.


  • Open-source program.
  • Highly customizable user-interface.
  • It is able to handle languages like: HTML, CSS, CPP, CSharp, JScript, XML, Python, etc.


  • It requires additional programming knowledge. (Not suited for beginners)
This software was checked for viruses and was found to be clean. Click here to see antivirus report.
trusted DOWNLOAD 19.9 MB

What's new in version 4.4

--AIR SDK and FP updates
--Encoding detection and UTF-7 fixed
--Safer file recognition in Results panel
--Show Haxe classpath parsing in status bar
--UITools.OnMouseHoverEnd event delegate added
--iOS packaging readme links updated in templates
--Recognize 'builtin.swc' as an API SWC like playerglobal
--Win32 window activation/restore fix as it caused a temp ui lockup
--No more div element for Haxe-js traces in template
--Haxe compilation for CSharp and Java tested
--SourceControl now verify paths to tools

What's new in version 4.3

--Chinese localization added
--Split View functionality added
--Mobile project *.bat file fixes
--Haxe class wizard template added
--Haxe completion fixes and improvements
--UI and revised syntax themes added (5 included)
--Projects now can feed basic completion (COMPLETION file in project root)
--Hover mouse wheel now works without clicking the controls
--The default toolbar is now more compact
--Scintilla control updated to 3.2.4
--AS3 compiler config blocks support
--Improved fullscreen functionality
--FP 11.6 and AIR SDK 3.6 updates
--Insert color dialog improvements
--Generic project improvements
--Lots of minor fixes and improvements

What's new in version 4.2

* German localizations updated
* AIR SDK 3.5 and FP 11.5 support added
* Syntax coloring config files are loaded only from *.xml files
* Syntax coloring config is now reloaded after theme install (see docs for Extensions)
* A new generic project type added (*.fdproj) which has only pre, post and run commands
* Git/Mercurial change, don't monitor file rename/delete/move
* The -swf-version option is now set for AIR projects
* Basic completion bug fixes and improvements
* FDBuild now expands environment variables
+ Some other small bug fixes

What's new in version 4.0

* New startpage design

Bug fixes and improvements:

* FlashBuilder project import fixes
* Code generation fixes and improvements
* ASCompletion bug fixes and improvements
* Project properties dialog improvements
* HTML and JS templates updated to HTML5
* Flash security file encoding fixes

+ Other bug fixes, small features and improvements

Publisher's description

FlashDevelop is a free and open source code editor. This program offers first class support for ActionScript (2 & 3) and Haxe development. FlashDevelop is also a great web developer IDE with source-control support (svn, git, mercurial), tasks/todo, snippets, XML/HTML completion and zen-coding for HTML.

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.fdp FlashDevelop Project
.fdl FlashDevelop Layout File
.fdb FlashDevelop Binary File
.fds FlashDevelop Snippet File
.fdt FlashDevelop Template File
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