JPEXS Free Flash Decompiler 24.1.2 - Download

JPEXS Free Flash Decompiler version 24.1.2

Updated At: 2026-01-31

Changes: ### Added - #2581 Save as SWC through context menu of SWF files (previously only in CLI) - Save as EXE through context menu of SWF files (previously only in toolbar) - Slovenian translation - SVG export - video frames - #2592, #2154, #2591, #2596 - Better handling of antialias conflation artifacts (by scaling), can be enabled in Advanced Settings / Display and Export. - #2608 Updated WEBP image library so now it supports macOS x64 - [PR228] Association with `.swc` extension - Association of file extensions in Windows setup (again) ### Fixed - #2570 NullpointerException on SVG export of DefineEditText - #2570 ClassCastException on exporting sound head (export all command) - #2571 SVG export - StackOverflow for DefineVideoStream - #2575 dumpSWF CLI command displayed import assets GUI dialog - #2573 AS3 - Incorrect uint/int/Number coercion - AS3 local registers type propagation - #2566, #2594 Export bounds of sprites and buttons not containg filter offsets - #2582 Font normalizer setting small texts when no assigned glyph found - PDF export - not rendering video stream frames - #2585 AS1/2 direct editation - continue and break in for..in loop - #2589 SVG export - subsprite animation, sprite offsets - #1893 Video - incorrect frame size - #2572 SVG import - incorrect stroke width when transform contains rotation/shear - #2595 FLA export - incorrect handling of imported fonts - FLA export - incorrect handling of imported sprites - #2586 AS3 direct editation + decompilation - XML escape sequences and other XML problems - #2600 Sprite/button outline incorrect calculation caused by clipping - #2612 SVG export - handle incorrect surrogate pairs in text - #2612 SVG export - problems with retain shape bounds setting - #2609 JDK 25+ warnings on console about native access - #2473, #2530 Always-break loops containing breaks (forward gotos) ### Changed - #2575 dumpSWF CLI command only allows single SWF dump (no imports, etc.)

JPEXS Free Flash Decompiler version 24.1.1

Updated At: 2025-11-17

Changes: ### Added - AS3 Document class is underlined and has different icon - #2556 CLI subsprite animation export (`-sublength ` option for export) - #2556 CLI option to select arbitrary frames of sprites export via `-select`. Check `--help -select` for details. ### Fixed - #2536 AS3 switches detection incorrectly replaces basic ifs with strict equals - #2536 AS3 switches detection not handling loops - #2536 AS3 regexp highlighting / compilation - #2537 AS1/2/3 direct editation - partial object literal causing lag - #2540 AS3 getlocal after inclocal with different registers incorrectly merged - [PR224] Font CLI replace throwing NullPointer - #2546 AS3 findProperty vs temporary registers - #2547 SVG import - improper linearGradient with userSpaceOnUse gradient units - #2545 FLA export - normalize font em square - #2552 Open with FFDec explorer menu shrinking sidebar - #2551 Showing too wide video tags in Flash player producing ValueTooLarge exception. Also truncated video length. - #2550 FLV video import - incorrect frame position caused by wrong FLV tag sort - Mac package problems related to BOM file (updated jbomutils library) - #2561 Cannot set filter strength to 128 or above - #2562 ABC explorer not working in some obfuscated code - #2562 P-code not showing in some obfuscated code (NumberContext related) ### Changed - Simple editor uses percent as units for filter strength ### Removed - Resampling from CLI and all source code - #2541, #2564 Antialias conflation fixer

JPEXS Free Flash Decompiler version 24.1.0

Updated At: 2025-09-28

Changes: ### Added - #2477 Option to disable AS2 detection of uninitialized class fields - AS2 detection of uninitialized class fields is cancellable, faster (parallel) and shows its progress - AS2 - show deobfuscated class/package names in the class tree - Allow obfuscated DefineEditText variable identifiers - Selectable text (DefineEditTexts with noselect=0), copy to clipboard, select all - AS1/2 P-code curly braces pair highlighting - #2478 Simple editor - editing texts (not WYSIWYG, textual as in classic editor) - #2478 Simple editor - remembering last frame / timeline - Optional heap memory status widget in the titlebar - #2485 Show variable name in the text tree node label - Deobfuscate identifiers option - non destructible renaming identifiers for display purposes - Unknown and errored tags moved to special folders - AS3 docs generator - reorganized to distinguish float and float 4 instructions, hilight float instruction blue - Icons for every tag type - #2499 Information about frames which do not have ShowFrame tag - #2504 WebP image format for export/import (not animated) Limitation: It's not available on Mac x86-64 platform - #2519 AS1/2 Direct editation + P-code - better handling of "too large" error messages - highlight actual problematic structure - AS1/2 Debugging - _global variable accessible - AS Debugging - Variables with flag DontEnumerate are hidden by default (can be changed in Advanced Settings) - Basic support for PlaceImagePrivate tag - Generator Templates (.swt) files support and related tags (Flash 3-5) (CharacterSet, GenCommand, NameCharacter, DefineTextFormat, FontRef) - DefineVideo tag support (Flash 4) - SerialNumber tag support (before Flash 7) - FreeCharacter tag support - SyncFrame tag support - Hex dump improvements: - view bit count in SB, UB fields - view tagIDTagLength field parts - show type after colon, not in parenthesis - view bytes length in bytes fields - #2526 Option to disable drag & drop from Resources view to avoid problems on Mac OS - #2497 AS3 - temp variables for better handling swap/dup instructions - #2529, #2471 Font normalization - available as context menu command on SWFs - automatically executed on PDF/SVG export - shrinks oversized fonts to 1024 em - fixes vertically flipped fonts / texts - fixes zero/1unit spaces font glyph advance - fixes zero last glyph advance in texts - [PR222] Replace fonts from commandline - #2534 Create new GFX tags of type DefineExternalGradient, DefineGradientMap, ExporterInfo, FontTextureInfo, DefineExternalStreamSound ### Fixed - #2474 Gotos incorrectly decompiled - AS1/2/3 highlighter - brackets parsing error causing memory leak / crash - Comments color highlighting - AS1/2 Obfuscated registers names not resolving because of trimming - Escaping HTML in raw tag editor - Flash player preview not stripping scripts from DefineSprites - Not clearing selected depth after timelined change - #2480 AS1/2 P-code decompilation of try..catch with empty catch body at the end of function - #2477 AS1/2 deobfuscation - and/or operators, jumps before function start, jumps to function end, jumps in for..in return/break - #2477 AS1/2 Switch in last statement of switch break labels - #2338 AS1/2/3 Obfuscated code - jump to jump handling - #1277 AS1/2 Propagate break/continue to avoid loop/switch labels - #2483 Editing shape gradient records - RGB vs RGBA - #2486 AS Loop in loop producing gotos in some cases - #2486 AS1/2 Switch after function, problem with labels - #2486 AS ifs with direct breaks (in obfuscated code) - #2486 AS3 skipping label instruction - Highlighter nullpointer - AS3 search slot name Index out of bounds - AS text search - not being able to cancel search over multiple swf files - #2486 AS3 switches detection in some cases - AS1/2 Hide icons panel when editing - AS1/2 both pcode and AS editable at the same time - AS3 direct editation - Allow some special words (like `override`) as identifiers - #2486 AS1/2 if jump to function end as return - #2493 Incorrect placement of §§push instructions - AS3 direct editation/highlighter §§pop in class traits - AS direct editation/highlighter §§pop and §§dup can have getmember or call - #1295, #116 AS3 dynamic construction via MultinameL - ABC cleaner not properly fixing namespace sets - The hex view does not display bytes if there are too few of them - SymbolClass export/import did not support obfuscated names - Configuration TOML file encoding (UTF-8) - #2496 Fonts - adding characters - truncating too wide advance widths - #2498 Public traits with same name were not distinguishable - #2503 Exporting sound streams as FLV - #2507 FLA export - Button hit test frame placing morphshapes - #2507 FLA export - Place characters over multiple button frames - #2508 AS1/2 direct editation - first command in for loop header not compiled - #2510 AS direct editation - popped value - #2511 Allowing to search or to jump from search window while in editation mode - #2515 AS1/2 direct editation - getURL incorrect casing, generating ActionGetURL2 when not needed - AS1/2 actions must use SWF charset when writing its length - #2515 AS1/2 Most of built-in global functions must be case in-sensitive - AS1/2 ActionStringExtract incorrectly decompiled as String.substr instead of substring global function - #2516 AS1/2 Renaming of identifiers not setting function length correctly - AS1/2 Renaming of identifiers must not rename integer array offsets - #2517 Loop break detection problems in some cases - #2519 AS1/2 avoid multi-level loops in cases where possible - #2522 Hex view - resetting view when mouse over panel bottom - #2519 AS1/2 direct editation - generating too large ConstantPool - Hex View - incorrect table height when switching tags - #2525 AMF editor (like in Sol cookie editor) - saving empty standard array `[]` - AS3 - names with custom namespaces not being deobfuscated - AS Debugger - order of trace commands - AS1/2 print/printNum/printAsBitmap/printAsBitmapNum not correctly handling bmovie boundingBox parameter - Font export - not setting ascent and descent - #2471 PDF export - ignore control characters - #2471 SVG export with typeface - white-space:pre style - #1826, #2416 FLA export - shapes - missing fills when fillStyle0/1 has incorrect orientation - #2532, #1011, #2165 FLA export - shapes - missing fills on path crossings, small shapes, Optimized speed of Shape fixer ### Changed - Icon of "Deobfuscation options" menu from pile of pills to medkit - Error log window shows last 100 log entries (instead of first 100) - AS1/2 P-code double Push values have suffix ".0" to properly distinguish them - AS1/2 P-code float Push values have suffix "f" to properly distinguish them - AS1/2: Export names are deobfuscated only when start with `__Packages.`, if not, then classical escaping is performed - Quotes in tree node parameter values that need them - The label of option "automatic deobfuscation" changed to "deobfuscate code" - SetTabIndex tag moved from others to frames folder - SWF3 actions split into SWF1, SWF2 and SWF3 actions (in FFDec source code, docs, etc.) - Serial form of AS3 search results changed so the decompiler is unable to read saved AS3 search result from older versions and vice-versa - CSMTextSettings tag renamed to CSMSettings ### Removed - Resample wav to 44kHz feature from GUI

JPEXS Free Flash Decompiler version 24.0.1

Updated At: 2025-06-27

Changes: ### Fixed - #2476 Dark interface skins identifiers highlighter visibility

JPEXS Free Flash Decompiler version 24.0.0

Updated At: 2025-06-24

Changes: ### Added - "Starting Flash content debugger" in status bar when debugging starts - Simple editor - edit parameters of items inside buttons - Simple editor - add/remove frames in buttons, button timeline header - Configuration is now stored in easily readable/editable textual format (TOML) (saved also to older binary format, but loading is preffered from the new TOML file, when exists) - `-configFile` and `-storeConfigFile` commandline parameters for loading/storing configuration file - Option to .bat and .sh file to enable J2D_D3D_NO_HWCHECK - #2404 Quick find in text/script editors - show number of occurences - #1418 Option to make main window Always on top - #289 Support for Aero Snap on Windows - #2412 Show coordinates on stage mouse move for up to 2 decimal places - "Show detail" context menu item for items in folder preview - #1682 AS2 - Adding class by context menu on packages - Simple editor - detection of english color name (based on CSS names) - #2050 AS1/2/3 - highlight variable definition and all its instances on cursor place (also in edit mode) - AS1/2/3 - underline errors in the code (also in edit mode) - AS1/2/3 - highlight variables and errors on panel next to vertical scrollbar - AS1/2 direct editation - hide P-code panel when editing - Disable AS1/2/3 direct editation when editing P-code - AS3 - navigation to definition in other SWF file and also player/airglobal - #2463 Export subsprites animation context menu on frames - Open in the Flash Player context menu on graphic/sound tags and frames - #2236, #2451 Replacing sound stream block ranges - Importing sound stream block ranges - Commandline replacing sound stream block ranges - #1625 Error log frame - Save all to file button - #2467 Show ImportAssets name/characterId in the title when there is only single one item - #2468 Option for `-dumpas2` CLI command to use export names (`-exportNames` option) - AS3 - code completion (properties and methods) - #2470 Transformation - Copy individual transforms to clipboard, load/apply from clipboard buttons - Option to turn off code completion on dot(.) key ### Changed - AS1/2 - Single DoAction tag inside frame is now displayed directly as frame node so there is no longer need to expand frame nodes (useful for fast switching scripts) - AS1/2 - Scripts from default package (not these inside `__Packages`) are now exported/imported to/from main scripts folder instead of localized ` ` before. (Only happened when package flattening was on) This may break backwards compatibility. For importing scripts from older versions of FFDec, you should move the scripts from ` ` to main scripts folder. - SWF to XML export in GUI dialog selects a XML file instead of directory (and directory when multiple SWFs are selected) ### Fixed - #2456 FLA export - NullPointer exception while exporting to CS4 or lower via commandline - Touch point, snap align and snap to objects incorrect position when editing nested layers - Resize export dialogs labels to match localized strings - AS1/2 debugger - deletion of SWD file after debugging - Proper freeing memory after SWF close - AS1/2 improper selection of search result - #2459 AS1/2 StoreRegister improper declaration position - AS2 Class names not showing in Folder list view - AS1/2 - Incorrect DefineFunction2 parameter names when parameter name is empty - #2460 SVG export - incorrect caching colorTransform and ratio for the same tag - #2461 SVG export - incorrect clipping / missing shapes - AS1/2 direct editation - Position in the code should stay same after clicking Edit button - AS3 direct editation - Allow internal keyword on script traits (e.g. classes) - AS3 direct editation - NaN can be used as identifier - Pin header for AS2 script in the Resources view should show Class name in the title instead of tag full description - AS1/2/3 for decompilation with multiple variables - AS3 native functions outside class allowed - AS3 difference between namespace keyword and const of type Namespace - #2462 AS3 debugger - incorrect line info injected - #2464 SVG export - minimum stroke width of 1 px - #2405 Incorrect saving tags after Cloning / Copy-pasting - #1646 Scrolling in Error log frame inside log texts - JLayer stripping last byte of MP3 data - #2469 Converting shape type did not convert gradient colors transparency - #2470 Transform - paste matrix, edit current matrix not working - Do not allow to switch PlaceObjects in transform mode - #2471 Clipping - multiple clips handling, in display and also SVG export - #2471 SVG Export - exporting with font-face - text tags with multiple texts, fix invalid family names, incorrect text size - Replacing existing characters in a font which has character codes unsorted - #2475 SVG Import - ignoring gradients caused by missing offset attribute of stop element - Not saving library type (airglobal/playerglobal) when switching SWFs

JPEXS Free Flash Decompiler version 23.0.1

Updated At: 2025-05-16

Changes: ### Fixed - Nullpointer exception during SWF opening when Simple editor is active

JPEXS Free Flash Decompiler version 22.0.2

Updated At: 2025-01-17

Changes: ### Added - FLA export - accessibility for AS3 files - #2375 Sound sync event/start/stop handling (for playback in FFDec) - #2374 Quick filter by folder type (Ctrl+F on Resources view tag tree) - #2389 Support for SPL file extension (Flash version 1 - Future Splash Animator) ### Fixed - #2375 Added limit of simultaneously played sounds - AS1/2 - Push action hilighting, GetProperty, Call action hilighting - #2381 Font color values with alpha allowed in html edittext, but alpha ignored - #2384 Vanishing pins on AS3 code editing save, on script deletion and few other cases - #2394 Broken AS1/2 deobfuscation on incorrect length of ActionStrictMode, - #2394 AS1/2 ActionStrictMode with mode larger than 1 now ignored - #2393 AS1/2 ActionGotoFrame2 P-code trailing comma

JPEXS Free Flash Decompiler version 22.0.1

Updated At: 2024-11-20

Changes: ### Added - AS3.1 null-conditional operator `?.` (air - swf version 50) - AS3.1 nullish coalescing operator `??` (air - swf version 50) - AS3 direct editation - verbatim strings `@"` ### Fixed - #2366, #2367, #2372 Running simple editor on background slowing down other views - Rendering now does not slow down UI elements - Using faster variant of blur

JPEXS Free Flash Decompiler version 22.0.0

Updated At: 2024-11-10

Changes: ### Added - Simple editor view - new simplified UI based on timeline view, which resembles Flash Pro UI. Easier moving objects, resizing, adding frames, adding objects to stage. Instance property editation. Undo / redo feature. Double click movie clips to edit sub-objects. - #1619 Option to set thread count to 0 for auto setting processor count - 1 - #2360 SOL file (Flash Local Shared Object - flash cookie) editor - Cookies folder to easy edit NPAPI SOL files (only cookies in the swf root directory) - Link to FFDec Wiki on the Help menu - On Run/Debug SWF file in FFDec, Flash cookies (SOL files) are synced from temporary SWF directory to actual SWF SOL directory ### Fixed - #2357 AS3 instance var/const initialization - #2361 Transform tool for PlaceObject tags - #2357 FLA export letterspacing on two character texts - #2357 FLA export to CS4 and lower - files exceeding 0x7FFF objects limit - #2357 FLA export to CS4 and lower - speed optimization - #2362 Generating error log ExecutionException - InterruptedException log on switching flash/air swc - Buttons were not active where they should be ### Changed - #1619 Default thread count is set to 0 ( = auto) - AMF3 (new AMF0 aswell) references and "undefined" values written as JSON objects

JPEXS Free Flash Decompiler version 21.1.3

Updated At: 2024-10-29

Changes: ### Fixed - Java 8 compatibility