Vineflower
Java and JVM bytecode can be decompiled with Vineflower, a general-purpose tool.
About Vineflower
Vineflower decompiles Java and JVM language bytecode into source code. It runs from the command line or as a library, accepts a jar, zip, folder, or class file as input, and writes to a folder, zip, jar, or to the console when destination is omitted. An IntelliJ IDEA plugin is available.
It supports Java 21 and later constructs including records, sealed classes, switch expressions, and pattern matching, with multithreaded decompilation and automatic output formatting. Version 1.9 and later requires Java 11 or higher to run, and version 1.11 and later requires Java 17 or higher.
Key features
- Supports Java 21+ records and sealed classes
- Handles switch expressions and pattern matching
- Automatic formatting of decompiled output
- Multithreaded decompilation
- Accepts jar, zip, folder, or class file input
- Outputs to folder, zip, jar, or console
Best for: Developers who need to decompile Java or JVM bytecode for inspection or analysis.
Good for
- Supports Java 21+ language constructs
- Usable from command line, as library, and in IntelliJ IDEA
- Open source under Apache-2.0 license
Watch out for
- Version 1.11 and later requires Java 17 or higher to run
Vineflower at a glance
- Category
- Development › Developer Tools
- Type
- Open-source project
- Pricing
- Not confirmed. Check the site
- Open source
- Yes · Source code
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
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Vineflower FAQ
How do I run Vineflower from the command line?
Use java -jar vineflower.jar , where is a jar, zip, folder, or class file.
What output destinations are supported?
The destination can be a folder, zip, jar, or omitted to print to the console.
How do I use Vineflower as a library?
Distributions are on Maven Central, with Gradle coordinate implementation 'org.vineflower:vineflower:'.
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