Java Decompiler

Open-source Java projects categorized as Decompiler

Top 11 Java Decompiler Projects

  1. jadx

    Dex to Java decompiler

    Project mention: Java Decompiler | news.ycombinator.com | 2025-11-25
  2. SaaSHub

    SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives

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  3. bytecode-viewer

    A Java 8+ Jar & Android APK Reverse Engineering Suite (Decompiler, Editor, Debugger & More)

    Project mention: Fernflower Java Decompiler | news.ycombinator.com | 2025-09-25
  4. Recaf

    The modern Java bytecode editor

    Project mention: Java Decompiler | news.ycombinator.com | 2025-11-25

    if you want to an online java decompiler for a quick analysis, I recommend https://slicer.run/, it has a sleek UI and provides support for a variety of decompilers (including the likes of Vineflower, CFR, JASM, Procyon). For more in-depth analysis, https://github.com/Col-E/Recaf is probably my first choice

  5. jpexs-decompiler

    JPEXS Free Flash Decompiler

  6. fernflower

    Decompiler from Java bytecode to Java, used in IntelliJ IDEA. (by JetBrains)

    Project mention: Fernflower Java Decompiler | news.ycombinator.com | 2025-09-25
  7. vineflower

    Modern Java decompiler aiming to be as accurate as possible, with an emphasis on output quality. Fork of the Fernflower decompiler.

    Project mention: Java Decompiler | news.ycombinator.com | 2025-11-25
  8. Bytecoder

    Framework to interpret and transpile JVM bytecode to JavaScript, OpenCL or WebAssembly.

  9. GhidRust

    GhidRust: Rust decompiler plugin for Ghidra

  10. ghidra-unSP

    SLEIGH specification for u'nSP

  11. ecd

    ECD++ - Fork of Enhanced Class Decompiler - integrate modern Java decompilers seamlessly into the development workflow

    Project mention: Show HN: ECD++ 2026.3.10 Is Released | news.ycombinator.com | 2026-05-19
  12. ls-annotations

    Show all declarations with java annotations by decompiling byte code.

NOTE: The open source projects on this list are ordered by number of github stars. The number of mentions indicates repo mentiontions in the last 12 Months or since we started tracking (Dec 2020).

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Index

What are some of the best open-source Decompiler projects in Java? This list will help you:

# Project Stars
1 jadx 49,038
2 bytecode-viewer 15,532
3 Recaf 7,221
4 jpexs-decompiler 5,684
5 fernflower 4,304
6 vineflower 2,194
7 Bytecoder 940
8 GhidRust 366
9 ghidra-unSP 15
10 ecd 13
11 ls-annotations 7

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