How do you decompile a swf file

Question

I am the maintainer of a site that has allegedly 'lost' the source code to a flash swf file. How do I decompile this source?

Are there any programs online or offline that I could use?

If you want to convert it to HTML5, you can use Swiffy: http://www.google.com/doubleclick/studio/swiffy/ — Johannes Fahrenkrug, Oct 19 '11 at 13:56
Related: [How to decompile an SWF file?](http://stackoverflow.com/q/2984273/55075) — kenorb, Apr 06 '15 at 10:42

score 22 · Answer 1 · answered Sep 18 '08 at 21:13

22

Usually 'lost' is a euphemism for "We stopped paying the developer and now he wont give us the source code."

That being said, I own a copy of Burak's ActionScript Viewer, and it works pretty well. A simple google search will find you many other SWF decompilers.

answered Sep 18 '08 at 21:13

davr

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ASV doesn't decompile AS3 / Flash 9 stuff as of yet. – Brent Sep 20 '08 at 00:58
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What are you talkin about, it's decompiled AS3 stuff for ages, I've used it to do such. Of course you have to buy it, the free version is much older than the paid version. – davr Sep 21 '08 at 02:54
the link does not seem to work... – Polydynamical Dec 03 '20 at 01:44

score 11 · Answer 2 · edited Jul 14 '18 at 07:10

11

erlswf is an opensource project written in erlang for decompiling .swf files.

Here's the site: https://github.com/bef/erlswf

edited Jul 14 '18 at 07:10

stefansundin

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answered Sep 18 '08 at 21:14

Lee H

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score 9 · Answer 3 · answered Sep 18 '08 at 21:15

9

Get the Sothink SWF decompiler. Not free, but worth it. Recently used it to decompile an SWF that I had lost the fla for, and I could completely round-trip swf-fla and back!
link text

answered Sep 18 '08 at 21:15

Robert Jeppesen

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Sothink is really very good. Lee Brimelow has a nice tutorial on using it: http://www.gotoandlearn.com/play?id=70 – Kristian J. Sep 19 '08 at 08:49

score 2 · Answer 4 · answered Sep 19 '08 at 07:45

2

I've had good luck with the SWF::File library on CPAN, and particularly the dumpswf.plx tool that comes with that distribution. It generates Perl code that, when run, regenerates your SWF.

answered Sep 19 '08 at 07:45

Chris Dolan

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ymutlu · Answer 5 · 2011-10-19T13:51:01.277

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I've used Sothink SWF decompiler a couple of times, the only problem is that as project gets more complex, the output of decompiler gets harder to compile back again. But it ensures that you can get your .as files most of the time, compilable fla is a question.

Sothink SWF Decompiler

edited Oct 19 '11 at 13:51

answered Oct 12 '11 at 07:57

ymutlu

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can you add a link to this? I'll upvote then. – Nathan Feger Oct 19 '11 at 13:24
http://download846.mediafire.com/6bvcckso1z1g/kzard29z313rfy3/RABCDAsm.rar for rabcsm...or https://www.free-decompiler.com/flash/ – Ludwig Dec 07 '15 at 21:31

How do you decompile a swf file

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