Java Bytecode Viewer Online — View JVM Bytecode in Your Browser

Open any .class or JAR file and view Java bytecode online — no install, no javap needed. Decompile to source or inspect raw opcodes instantly.

View Bytecode Online (No Install)

What Bytecode Looks Like

View Bytecode from the Command Line

When to Use Bytecode vs Decompiled Source

Inspect String Constants Without Full Decompilation

Summary