Recaf

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About

Recaf is ranked #4 of 31 in Minecraft mod development tools on Inferse. It runs on Linux, macOS, Windows.

Compared on Minecraft mod development tools

Free plan: Yesrecaf.coley.software
Native-code decompilation: Norecaf.coley.software
Bytecode decompilation: Yesrecaf.coley.software
Debugger integration: Yesrecaf.coley.software
Scripting API: Yesrecaf.coley.software
Plugin support: Yesrecaf.coley.software
License type: freerecaf.coley.software

Facts

Product: Recaf is an open-source Java bytecode editor for analyzing and editing compiled Java applications.recaf.coley.software · 2 Oct 2026
Purpose: Recaf describes itself as a Java and Android reverse engineering tool for navigating application logic and modifying application behavior.recaf.coley.software · 2 Oct 2026
Decompile and recompile: Users can view decompiled code, edit it as Java, and recompile classes into the workspace without adding dependencies to that workspace.recaf.coley.software · 2 Oct 2026
Bytecode editing: Its assembler supports editing JVM instructions with labels, variable names, and bytecode snippets.recaf.coley.software · 2 Oct 2026
Live patching: Recaf can attach to running Java processes and redefine classes without restarting the target application.recaf.coley.software · 2 Oct 2026
Live patching limits: The Attach API prevents removing existing fields or methods and inserting new fields or methods into existing classes.recaf.coley.software · 2 Oct 2026
Search: Search can find classes, members, strings, constants, references, and bytecode patterns.recaf.coley.software · 2 Oct 2026
Deobfuscation: Recaf includes transformers for common obfuscation patterns and tools for renaming symbols and inspecting specially crafted Java archives.recaf.coley.software · 2 Oct 2026
Plugins and scripts: Recaf supports scripts and plugins through modular APIs, allowing users to automate workflows and extend functionality.recaf.coley.software · 2 Oct 2026
File formats: Supported inputs include class files, JAR/ZIP/WAR/AAR archives, JMOD files, APK/DEX files, and read-only modules.recaf.coley.software · 2 Oct 2026
Runtime requirements: Recaf requires JDK 22 or higher and JavaFX 22 or higher.recaf.coley.software · 2 Oct 2026
Installation: The launcher downloads compatible JavaFX artifacts, lets users select an installed Java version, and provides access to updates.recaf.coley.software · 2 Oct 2026
Launcher interface: Each launcher release offers a GUI and CLI.recaf.coley.software · 2 Oct 2026
Use cases: The site lists reverse engineering, malware analysis, Java modding, and live debugging and patching as common use cases.recaf.coley.software · 2 Oct 2026
Purpose: Recaf is a Java and Android reverse engineering tool for navigating application logic and modifying application behavior.recaf.coley.software · 3 Oct 2026
Input formats: Recaf supports .class, .jar, .zip, .war, .aar, .jmod, .apk, .dex, and read-only modules, and auto-detects supported content types.recaf.coley.software · 3 Oct 2026
Editing: Classes can be edited by recompiling decompiled code or reassembling disassembled code.recaf.coley.software · 3 Oct 2026
Obfuscation context: The documentation describes obfuscation as making application logic harder to reverse engineer and points to deobfuscation chapters for Recaf’s capabilities.recaf.coley.software · 3 Oct 2026
Installation: The documentation recommends the launcher for most users; it downloads compatible JavaFX artifacts, lets users choose an installed Java version, and provides one-click updates.recaf.coley.software · 3 Oct 2026
Java requirement: Recaf requires JDK 22 or higher.recaf.coley.software · 3 Oct 2026
JavaFX requirement: Recaf requires JavaFX 22 or higher, which the launcher can download automatically.recaf.coley.software · 3 Oct 2026