Recaf

Recaf is ranked #12 of 31 in Minecraft mod development tools on Freedom251. It runs on Linux, macOS, Windows.

Compared on Minecraft mod development tools

Free plan: Yes
Native-code decompilation: No
Bytecode decompilation: Yes
Debugger integration: Yes
Scripting API: Yes
Plugin support: Yes
License type: free

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Recaf

Product: Recaf is an open-source Java bytecode editor for analyzing and editing compiled Java applications.
Purpose: Recaf describes itself as a Java and Android reverse engineering tool for navigating application logic and modifying application behavior.
Decompile and recompile: Users can view decompiled code, edit it as Java, and recompile classes into the workspace without adding dependencies to that workspace.
Bytecode editing: Its assembler supports editing JVM instructions with labels, variable names, and bytecode snippets.
Live patching: Recaf can attach to running Java processes and redefine classes without restarting the target application.
Live patching limits: The Attach API prevents removing existing fields or methods and inserting new fields or methods into existing classes.
Search: Search can find classes, members, strings, constants, references, and bytecode patterns.
Deobfuscation: Recaf includes transformers for common obfuscation patterns and tools for renaming symbols and inspecting specially crafted Java archives.
Plugins and scripts: Recaf supports scripts and plugins through modular APIs, allowing users to automate workflows and extend functionality.
File formats: Supported inputs include class files, JAR/ZIP/WAR/AAR archives, JMOD files, APK/DEX files, and read-only modules.
Runtime requirements: Recaf requires JDK 22 or higher and JavaFX 22 or higher.
Installation: The launcher downloads compatible JavaFX artifacts, lets users select an installed Java version, and provides access to updates.
Launcher interface: Each launcher release offers a GUI and CLI.
Use cases: The site lists reverse engineering, malware analysis, Java modding, and live debugging and patching as common use cases.

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Where it ranks on Freedom251

Best Minecraft Mod Development Tools in 2026#12 of 31
Best Decompiler Software in 2026#8 of 23

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Sources

recaf.coley.software/home.html· checked 2 Oct 2026
recaf.coley.software/user/index.html· checked 2 Oct 2026
recaf.coley.software/user/input/index.html· checked 2 Oct 2026
recaf.coley.software/user/install/requirements.html· checked 2 Oct 2026
recaf.coley.software/user/install/index.html· checked 2 Oct 2026
recaf.coley.software/user/install/via-launcher.html· checked 2 Oct 2026
recaf.coley.software/user/editing/index.html· checked 3 Oct 2026
recaf.coley.software/user/obfuscation/index.html· checked 3 Oct 2026