Top 12 Bytecode Manipulation Open-Source Projects

bytecode-viewer

9 14,351 7.2 Java

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

5 6,012 9.0 Java

Runtime code generation for the Java virtual machine.

Project mention: Monkey-patching in Java | dev.to | 2023-09-21

As seen above, the API exposes the user to low-level bytecode manipulation via byte arrays. It would be unwieldy to do it directly. Hence, real-life projects rely on bytecode manipulation libraries. ASM has been the traditional library for this, but it seems that Byte Buddy has superseded it. Note that Byte Buddy uses ASM but provides a higher-level abstraction.

InfluxDB

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Recaf

24 5,553 4.1 Java

The modern Java bytecode editor
Javassist

5 4,018 6.1 Java

Java bytecode engineering toolkit
Mixin

13 1,314 6.0 Java

Mixin is a trait/mixin and bytecode weaving framework for Java using ASM
threadtear

3 860 0.0 Java

Multifunctional java deobfuscation tool suite
Byteman

0 473 5.4 Java

Byteman Project main repo
SaaSHub

www.saashub.com featured

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

1 339 5.0 Java

The open-source Java obfuscation tool working with Ant and Gradle by yWorks - the diagramming experts
MixinExtras

1 264 8.2 Java

Companion library to SpongePowered Mixin with many custom injectors for a more expressive experience.

Project mention: Need help to fix error | /r/fabricmc | 2023-05-16

Try adding the jar here https://github.com/LlamaLad7/MixinExtras/releases/tag/0.1.1

sentry-android-gradle-plugin

1 130 8.9 Kotlin

Gradle plugin for Sentry Android. Upload proguard, debug files, and more.
javaflame

1 48 9.3 Java

Create reports for function calls with argument and return values on java. No servers or open connections, just plug the agent and get the results.

Project mention: Show HN: Javaflame – Simple Flamegraph for your Java application | news.ycombinator.com | 2023-11-07

Maker

6 43 8.7 Java

Lightweight, full-featured, low-level dynamic Java class generator designed for ease of use.

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).

Bytecode Manipulation related posts

Show HN: Javaflame – Simple Flamegraph for your Java application

3 projects | news.ycombinator.com | 7 Nov 2023
Monkey-patching in Java

2 projects | dev.to | 21 Sep 2023
JUnit 5: link tests with task tracker issues

5 projects | dev.to | 21 Apr 2023
Java 泛型程式設計的注意事項

2 projects | dev.to | 2 Jan 2023
Any news on the Classfile API?

5 projects | /r/java | 23 Dec 2022
Hello I would try to start Modding in Minecraft. Have you any advice or good tutorial for beginning ?

2 projects | /r/CurseForge | 13 Dec 2022
Proposed: A new CMake scripting language usable alongside existing one

9 projects | news.ycombinator.com | 6 Dec 2022
A note from our sponsor - InfluxDB
www.influxdata.com | 2 May 2024

Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality. Learn more →

Index

What are some of the best open-source Bytecode Manipulation projects? This list will help you:

	Project	Stars
1	bytecode-viewer	14,351
2	Byte Buddy	6,012
3	Recaf	5,553
4	Javassist	4,018
5	Mixin	1,314
6	threadtear	860
7	Byteman	473
8	yGuard	339
9	MixinExtras	264
10	sentry-android-gradle-plugin	130
11	javaflame	48
12	Maker	43