1
Also covers programming · open source
Inspect Java source from CLASS files using JD-GUI, a standalone graphical decompiler.
Alternatives
The Best JavaDecompiler Alternatives in 2026
24 alternatives1 free · 6 open source
Looking for something like JavaDecompiler? Here are 24 alternatives, ranked by how closely they match it on purpose, features and platforms. Of these, 1 are free or have a free plan and 6 are open source.
About JavaDecompilerjavadecompilers.com
VisitDecompile Java class and JAR files online to inspect their source code with JavaDecompiler.
Top picks at a glance
First suggestionjd-guiInspect Java source from CLASS files using JD-GUI, a…Free or freemium optionTry It OnlineRun code in online interpreters for a range of practical…Another optionC++ InsightsInspect C++ source code from a compiler’s perspective with…
Quick comparison
| # | Alternative | Pricing | Open source | Platforms |
|---|---|---|---|---|
| 1 | jd-gui | — | Yes | Windows, macOS |
| 2 | C++ Insights | — | Not stated | Web |
| 3 | Java Interop | — | Not stated | Web |
| 4 | Fernflower | — | Yes | — |
| 5 | Recaf | — | Not stated | Web |
| 6 | WebCrack | — | Not stated | Web |
| 7 | StandardJS | — | Not stated | Web |
| 8 | Bun | — | Not stated | Linux, macOS, Web |
| 9 | Try It Online | Free | Not stated | Web |
| 10 | jadx | — | Yes | — |
All JavaDecompiler alternatives
2
C++ Insights
cppinsights.ioAlso covers programming · same kind of website
Inspect C++ source code from a compiler’s perspective with C++ Insights, an interactive source transformation tool.
3
Java Interop
clojure.org/reference/java_interopAlso covers programming · same kind of website
Clojure Java Interop documentation explains how Clojure code can access Java classes and methods.
4
Also covers programming · open source
Decompile Java bytecode to Java source with Fernflower, used in IntelliJ IDEA.
5
Recaf
coley.software/RecafAlso covers programming
Inspect and edit Java bytecode with Recaf, a modern editor that includes a documented user guide.
6
WebCrack
webcrack.netlify.appAlso covers programming · same kind of website
Deobfuscate, unminify, and unpack bundled JavaScript with WebCrack, a tool for inspecting scripts.
7
StandardJS
standardjs.comAlso covers programming
Apply JavaScript Standard Style, a shared JavaScript code style and linter configuration.
8
Bun
bun.comAlso covers programming
JavaScript and TypeScript code can be bundled, installed, and run with Bun, a runtime and toolkit.
9
Also covers programming · free
Run code in online interpreters for a range of practical and recreational programming languages with Try It Online.
10
Also covers android and programming · open source
Convert Android DEX bytecode into Java source with jadx, a decompiler documented in this project repository.
11
Also covers programming · open source
libpython-clj provides Python bindings that connect Python libraries with Clojure code.
12
Also covers programming · open source
The Twitter Text Java library tokenizes and parses text according to platform text requirements.
13
Also covers programming · open source
JEnv for Windows switches the active Java version with a short command.
14
JavaScript Interop
clojurescript.org/reference/javascript-apiAlso covers programming · same kind of website
ClojureScript JavaScript API documentation covers JavaScript interoperation and collection behavior.
15
OpenNLP
opennlp.apache.orgAlso covers programming · same kind of website
Apache OpenNLP is a machine learning based toolkit for the processing of natural language text.
16
FoLiA format
proycon.github.io/foliaAlso covers programming · same kind of website
FoLiA is an XML format for linguistic annotation of written language resources such as corpora.
17
Underdash
surma.github.io/underdashAlso covers programming · same kind of website
Copy and paste reusable JavaScript utility functions from the Underdash collection.
18
Codigo
codigolangs.comAlso covers programming · same kind of website
Search and compare programming languages in Codigo, a directory that also publishes language news and examples.
19
Python
python.orgAlso covers programming · same kind of website
Python.org is the official site for the Python programming language and its documentation.
20
Octave
octave.orgAlso covers programming · same kind of website
GNU Octave is a programming language for scientific computing with mathematical syntax.
21
JS Compressor
jscompressor.treblereel.devAlso covers programming · same kind of website
Compress JavaScript with the Closure Compiler and choose an optimization level and formatting options.
22
Adoptium
adoptium.netAlso covers programming · same kind of website
Eclipse Adoptium provides prebuilt OpenJDK binaries built from open-source scripts and infrastructure.
23
scikit-learn
scikit-learn.orgAlso covers programming · same kind of website
The scikit-learn documentation covers machine learning tools and methods for Python.
24
Deobfuscator
willnode.github.io/deobfuscatorAlso covers programming · same kind of website
Deobfuscate JavaScript with controls for formatting, simplification, and evaluation in this browser tool.
No alternatives match this filter.
Alternatives to similar tools
Twitter Text Java24 alternativesJEnv For Windows24 alternativesjadx24 alternativesJavaScript Interop24 alternativesOpenNLP24 alternativesStandardJS24 alternatives
What is the best alternative to JavaDecompiler?
Based on features, tags and platforms, the closest alternatives to JavaDecompiler are jd-gui, C++ Insights, and Java Interop.
Is there a free alternative to JavaDecompiler?
Yes. Try It Online is free or offer a free plan.
Are there open-source alternatives to JavaDecompiler?
Yes: jd-gui, Fernflower, jadx, and Libpython-clj.
Alternatives are suggested from the purpose and features described in our listings. Different pages for the same product appear once. Read each description to check whether it fits your task. How we choose alternatives · Suggest an alternative