How to Re-edit a Flash SWF without Adobe Flash?

Do you want to make some simple modifications to an existing Flash SWF file without Adobe Flash? Sothink SWF Decompiler for Mac will help you to do so. Ignore the complicated stage, timeline, frame…, you can easily change some elements for a current Flash movie, such as modify a cat to a dog, or the text “Good morning” to “Good night”.

See the following two SWF files:

Original Flash Movie:

New Flash Movie with Background Image Replaced:

Please follow this tutorial to replace an image for a SWF file.

Required Software: Sothink SWF Decompiler for Mac >>

Download Sothink SWF Decompiler for Mac >>

Estimated Time: 3 minutes

Step 1: open the target SWF that you want to edit

Launch Sothink SWF Decompiler for Mac, and then from “Explorer” panel, navigate to the folder in which the target SWF file locates.

Choose the SWF that you want to decompile, and then it will begin to play in the central preview window.


Now the SWF you selected is listed in the “Single File Export” window of the “Export” panel. When you click the flash-to-html5-6sign, all the SWF elements will be decompiled automatically and displayed by category.

Step 2: edit SWF elements

Currently, Sothink SWF Decompiler for Mac support replacing image/shape/text/sound resources. In this tutorial, we will replace an image for the SWF file.

At first, you need to check the image that you want to replace.


Now click the “Edit” button on the toolbar, and then an edit box will appear.


Navigate to choose the image that you want to replace the current one.


Now the image has been replaced successfully, and it is marked with an “*” sign. All the edit function related buttons are become activated now, you can choose to save or discard your changes.

Step 3: save the edited SWF as a new Flash movie

If you are satisfied with the alterations to the SWF file, you can directly click “Save” button to save the changes, or click “Save as” to save the edited SWF file as a new Flash movie.

2 thoughts on “How to Re-edit a Flash SWF without Adobe Flash?

  1. Hi:

    I have a swf file that was created a few years ago. It has actionscripts defined that simply go to a URL that the SoThink Decompiler picks up as buttons. I need to change the URL for one of the ‘buttons’ and that’s it! I can see the code but cannot edit it! I exported the button as an ‘as’ file and changed it, but cannot import it back!

    Can someone help me with this please? I would be forever indebted 🙂

    Thank you!


  2. Hi Dave,

    If it is possible, we would like to recommend you to edit SWF using Sothink SWF Quicker Windows version instead since Sothink SWF Decompiler for Mac does not support replacing AS file or writing in any other URL directly with the current version. And you will find more features about the software here.

    And if you have any other questions, please feel free to contact us at

    Hope this info helps.

    Best Regards