CLASS Converter

Convert CLASS files online for free

Select File
Drop or upload your .CLASS file

Online File Converter

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How to convert your CLASS file

Click the "Select File" button above, and choose your CLASS file.
You'll see a preview.
Click the "Convert file to..." button to save your file in the format you want.

Convert CLASS to another file type

The converter easily converts your CLASS file to various formats—free and online. No Visual Studio Code or extra software needed.

CLASS to JSON
CLASS to JS
CLASS to TS
CLASS to PY
CLASS to JAVA
CLASS to CPP
CLASS to C
CLASS to CS
CLASS to PHP
CLASS to RB
CLASS to GO
CLASS to RS

Convert a file to CLASS

The converter also works in reverse, allowing you to convert your file into the CLASS file type—in the best quality.

SH to CLASS
PY to CLASS
KT to CLASS
PS1 to CLASS
SWIFT to CLASS
LUA to CLASS
PL to CLASS
JAVA to CLASS
SCALA to CLASS
JS to CLASS
VBS to CLASS
TS to CLASS

About CLASS files

CLASS files are a type of compiled Java bytecode file, used by the Java Virtual Machine (JVM) to execute Java programs. They are typically created by the Java compiler, and can be found in the same directory as the source code. CLASS files are not human-readable, which makes them difficult to modify or debug.

The most common way to convert CLASS files is to use a Java decompiler, such as JAD, CFR, or Procyon. These tools can convert CLASS files into readable Java source code, which can then be edited and recompiled.

When converting CLASS files, it is important to consider the version of the Java compiler used to create the CLASS file. Different versions of the Java compiler produce different versions of the CLASS file, and some decompilers may not be able to handle the latest version of the CLASS file. Additionally, some CLASS files may contain obfuscated code, which can make them difficult to decompile.

Using CLASS files can be a challenge, as they are not human-readable and require specialized software to convert. For this reason, it is often easier to use an online website such as Convert.Guru to convert CLASS files. Convert.Guru is free and easy to use, and can quickly convert CLASS files into readable source code.

Use Convert.Guru online viewer to open and convert your CLASS file.

Users also converted JAVA, JAR, MF, SMALI, TXT, IML, JSP, PNG, PROTO, JSON, BBMODEL, ZIP and EXE files.

The CLASS Converter Story

The history of Convert.Guru began over 25 years ago in California with Tom Simondi’s file-format database. A former contributor to Space Shuttle development and a software pioneer of the 1980s, Simondi established a trusted resource for file type analysis that was even referenced by Microsoft Windows XP. Today, we use modern technology to process and convert thousands of file formats while continually improving our CLASS converter.