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[Format]: .class #752

Closed as not planned
Closed as not planned

Description

@loloshelly102-a11y

File extension

.class

What makes these files?

device

What should Filee convert them to?

.java

Anything else?

No response

Protection

  • These files aren't encrypted or copy-protected (DRM), and I can open them without a password.

Activity

  1. KnifeLemon commented on Oct 29, 2026

    @KnifeLemon
    Owner

    Thanks for the request! A .class file is compiled Java bytecode. Turning it back into .java source is decompiling, which is a programming tool's job rather than a file conversion. The result is reconstructed code, not the original source.

    What works today: a Java decompiler does exactly this.

    • IntelliJ IDEA opens a .class file as decompiled Java directly.
    • Standalone decompilers such as Vineflower or CFR do the same.

    This is outside what Filee does, so I'm closing it.

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