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Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most feature-rich free bytecode editor available. Libraries used: ASM – Class editing abilities CFR – Decompilation Simple-Memory-Compiler – Recompilation of decompiled code JIMFS – Virtual file system ControlsFX – Custom controls (Used in pretty much everything) RichTextFX – Decompiler code highlighting JRegex – Pattern matching for decompiler code highlighting minimal-json – Json reading/writing for config storage Commonmark – Markdown parsing picocli – Command line argument parsing Changelog v2.21.13 Important news The 3rd major version release of Recaf (3.X) is in a early-alpha state. You can check the progress here: Recaf 3X Issues & Feedback For repository owners and maintainers of package managers, this will change the artifact release process. More information about this change will come out once the 3X project gets closer to an official release. New Features Plugins can now specify custom language files (253be13) Keybind to increase/decrease font size (e2cbecc) Bug Fixes Fix double backslash before escaped unicode character causing lexing error (38a7b2a) Updates from JavaFX 16 to 18 includes various fixes (46e39e and c66f238) [hide][Hidden Content]]

Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most feature-rich free bytecode editor available. Libraries used: ASM – Class editing abilities CFR – Decompilation Simple-Memory-Compiler – Recompilation of decompiled code JIMFS – Virtual file system ControlsFX – Custom controls (Used in pretty much everything) RichTextFX – Decompiler code highlighting JRegex – Pattern matching for decompiler code highlighting minimal-json – Json reading/writing for config storage Commonmark – Markdown parsing picocli – Command line argument parsing Changelog v2.21.7 Important news The 3rd major version release of Recaf (3.X) is in a pre-release state. You can check the progress here: [Hidden Content] For repository owners and maintainers of package managers, this will change the artifact release process. More information about this change will come out once the 3X project gets closer to an official release. Features Bump CFR from 151 -> 152 Migrate from forge-mirrored FernFlower to ForgeFlower Bug Fixes Fix not pulling architecture-dependent JavaFX bindings. Should support Mac M1 (4b82d8c) [hide][Hidden Content]]

Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most feature-rich free bytecode editor available. Libraries used: ASM – Class editing abilities CFR – Decompilation Simple-Memory-Compiler – Recompilation of decompiled code JIMFS – Virtual file system ControlsFX – Custom controls (Used in pretty much everything) RichTextFX – Decompiler code highlighting JRegex – Pattern matching for decompiler code highlighting minimal-json – Json reading/writing for config storage Commonmark – Markdown parsing picocli – Command line argument parsing Changelog v2.21.5 Bug Fixes Fix incorrect supported Javac version range – #419 (31e3a8) [hide][Hidden Content]]

Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most feature-rich free bytecode editor available. Libraries used: ASM – Class editing abilities CFR – Decompilation Simple-Memory-Compiler – Recompilation of decompiled code JIMFS – Virtual file system ControlsFX – Custom controls (Used in pretty much everything) RichTextFX – Decompiler code highlighting JRegex – Pattern matching for decompiler code highlighting minimal-json – Json reading/writing for config storage Commonmark – Markdown parsing picocli – Command line argument parsing Changelog v2.21.4 Bug Fixes Fixed drag popup CSS on default theme (b65afd9) [hide][Hidden Content]]

Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most feature-rich free bytecode editor available. Libraries used: ASM – Class editing abilities CFR – Decompilation Simple-Memory-Compiler – Recompilation of decompiled code JIMFS – Virtual file system ControlsFX – Custom controls (Used in pretty much everything) RichTextFX – Decompiler code highlighting JRegex – Pattern matching for decompiler code highlighting minimal-json – Json reading/writing for config storage Commonmark – Markdown parsing picocli – Command line argument parsing Changelog v2.21.1 Bug Fixes Fail to compile expressions in constructors #407 (1bb163f) [hide][Hidden Content]]

Recaf Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most feature-rich free bytecode editor available. Libraries used: ASM – Class editing abilities CFR – Decompilation Simple-Memory-Compiler – Recompilation of decompiled code JIMFS – Virtual file system ControlsFX – Custom controls (Used in pretty much everything) RichTextFX – Decompiler code highlighting JRegex – Pattern matching for decompiler code highlighting minimal-json – Json reading/writing for config storage Commonmark – Markdown parsing picocli – Command line argument parsing Changelog v2.21 Bug Fixes Filter out certain classpath entries for compiler (af09b0e) Support for parsing ZIP files with broken END headers (6d1ef0f) Features Backend config for disabling exported file compression (c6248be) [hide][Hidden Content]]

Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most feature-rich free bytecode editor available. Libraries used: ASM – Class editing abilities CFR – Decompilation Simple-Memory-Compiler – Recompilation of decompiled code JIMFS – Virtual file system ControlsFX – Custom controls (Used in pretty much everything) RichTextFX – Decompiler code highlighting JRegex – Pattern matching for decompiler code highlighting minimal-json – Json reading/writing for config storage Commonmark – Markdown parsing picocli – Command line argument parsing Changelog v2.20 Features Add value and string search support to invokedynamic arguments (659322e) Remap command remaps manifest main-class attribute (e5b6ac2) Support loading directories in UI via drag/drop (ad21bf6) Bug Fixes Auto-illegal-patcher breaking certain classes due to faulty bounds check (71de3bf) Unpatched classes not showing in navigator (dd2dc10) CFR default options populated incorrectly (52e211b) Hovering over context menu header changes header color (2f0c966) [hide][Hidden Content]]

Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most feature-rich free bytecode editor available. Libraries used: ASM – Class editing abilities CFR – Decompilation Simple-Memory-Compiler – Recompilation of decompiled code JIMFS – Virtual file system ControlsFX – Custom controls (Used in pretty much everything) RichTextFX – Decompiler code highlighting JRegex – Pattern matching for decompiler code highlighting minimal-json – Json reading/writing for config storage Commonmark – Markdown parsing picocli – Command line argument parsing Changelog v2.16.2 Bug Fixes Fix type resolving failing when target is in the default package (7e62ddb) [hide][Hidden Content]]

Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most feature-rich free bytecode editor available. Changelog v2.7 Features Add close, close all, close others, copy path buttons to tabs contextual menus (cd4f982) Add launch new JVM under agent menu (06008b2) Bug Fixes Field renaming does not map non-direct class owner usage (fd279bf) Line numbers do not get updated in assembler (78df0b7) Recompiling on Java 8 fails when target is in Java 9+ (faa790e) [hide][Hidden Content]]

Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most feature-rich free bytecode editor available. Libraries used: ASM – Class editing abilities CFR – Decompilation Simple-Memory-Compiler – Recompilation of decompiled code JIMFS – Virtual file system ControlsFX – Custom controls (Used in pretty much everything) RichTextFX – Decompiler code highlighting JRegex – Pattern matching for decompiler code highlighting minimal-json – Json reading/writing for config storage Commonmark – Markdown parsing picocli – Command line argument parsing Changelog v2.4.1 Bug Fixes Fix typo’d variables in assembler using existing indices instead of new indices causing type conflicts (f77c5c5) JavaParser not understanding the diff between inner class and package separators. (9e18a58) Uncaught resolve exception with JavaParser (7cfefb1) Using enter key clears the search prompt and does not open the file (32fc103) [hide][Hidden Content]]

Recaf Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most feature-rich free bytecode editor available. Changelog v2.3.8 Bug Fixes Obfuscated variable names break assembler. Restrictions on variable names have been loosened (bffbfef) [hide][Hidden Content]]

Recaf Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most feature-rich free bytecode editor available. Changelog v2.3.7 Bug Fixes Properly bump version of modified oak classes so JVM can execute patched oak classes (220a237) [hide][Hidden Content]]

Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most feature-rich free bytecode editor available. Changelog v2.3.1 Bug Fixes JADX mappings now retain existing package (5205059) [hide][Hidden Content]]

Recaf Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most feature-rich free bytecode editor available. Changelog v2.2.2 Bug Fixes Scroll position constantly resetting after reloading class for various actions (cdc90f9) Copying a VM’s classpath did not record it as a recently loaded file (0536782) Unable to edit class after switching decompiler from crash prompt (84da393) Engima mapping reader did not consider indentation levels of inner classes (b6117b9) Assembler error with index-to-name mapping when encountering temp/synthetic variables (caaed84) Error when recaf popup shows in window that has already been closed (a122183) Error when resolving selection type of member that does not exist (47aaf80) Error when adding a library to an empty workspace (620b359) [hide][Hidden Content]]

Recaf Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most feature-rich free bytecode editor available. Libraries used: ASM – Class editing abilities CFR – Decompilation Simple-Memory-Compiler – Recompilation of decompiled code JIMFS – Virtual file system ControlsFX – Custom controls (Used in pretty much everything) RichTextFX – Decompiler code highlighting JRegex – Pattern matching for decompiler code highlighting minimal-json – Json reading/writing for config storage Commonmark – Markdown parsing picocli – Command line argument parsing Changelog v2.1.1 Bug Fixes Bytecode assembler errors on abstract methods due to missing null check (5d3dc46) [HIDE][Hidden Content]]

Recaf Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most feature-rich free bytecode editor available. Changelog v2.0 This has been a long time coming, but the redesign branch for version 2.0.0 has finally been merged into master. What does this mean? For the past year me and other contributors have re-made Recaf from the ground up and made it into something that is much more user-friendly. When you have the time please come check the project on GitHub and look over the new documentation. There is a lot that has changed. With this in mind, this release is not the full package of what I intended 2.0.0 to be... however with the standard I wanted to strive for that day may still be a year or so in the future. But as it is right now, I feel that 2.0.0 is better in almost every possible way than the latest release of 1.15, and making a better tool was the whole point. Now here we are. Please do not hesitate to give feedback on this release. We have a discord server and you can always create an issue on Github. I hope you enjoy this update as much as I have enjoyed writing it. If you want to stay on 1.15 you can change the update frequency in the config menu to "Never". [HIDE][Hidden Content]]

Recaf Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most feature-rich free bytecode editor available. Libraries used: ASM – Class editing abilities CFR – Decompilation Simple-Memory-Compiler – Recompilation of decompiled code JIMFS – Virtual file system ControlsFX – Custom controls (Used in pretty much everything) RichTextFX – Decompiler code highlighting JRegex – Pattern matching for decompiler code highlighting minimal-json – Json reading/writing for config storage Commonmark – Markdown parsing picocli – Command line argument parsing Changelog v2.0 Bug Fixes Hex cells render cut off in windows 10 (44b0b3e) Line number cells show unintentional spacing in windows 10 (e317467) Minor debug info not copied relating to annotations (dc1c9a0) Selection of enum references shows no context menu (35f6878) Features Mapping menu allows applying mapping files to primary resource in workspace (5256c11) [HIDE][Hidden Content]]

Recaf Recaf is an open-source Java bytecode editor based on Objectweb’s ASM. ASM is a library that abstracts away the constant pool and class-file attributes. Since keeping track of the constant pool or managing proper stack frames are no longer necessary, complex changes can be made with relative ease. With additional features to assist in the process of editing Recaf is the most f Libraries used: ASM – Class editing abilities CFR – Decompilation Simple-Memory-Compiler – Recompilation of decompiled code JIMFS – Virtual file system ControlsFX – Custom controls (Used in pretty much everything) RichTextFX – Decompiler code highlighting JRegex – Pattern matching for decompiler code highlighting minimal-json – Json reading/writing for config storage Commonmark – Markdown parsing picocli – Command line argument parsing Changelog v1.15.8 What’s new? Updated CFR from 0.146 to 0.148 What’s fixed? #175 – Resolution of missing JavaFX artifacts cases a crash Java 8 users un-affected Java 11+ users will have to manually download this update [HIDE][Hidden Content]]

An easy to use modern Java bytecode editor based on Objectweb's ASM. No more hassling with the constant pool or stack-frames required. src [Hidden Content]