Is this Java viewer free?

Yes. It runs in your browser for free and needs no registration or installation.

Are my Java files uploaded?

No. Files opened from your device stay on your device. Only public sample files come from the server.

Does it compile or run the Java code?

No. The viewer shows the source with highlighting; it does not compile or execute it.

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Java Viewer

Free online Java viewer. Open .java source files directly in your browser without uploading them.

.java

Classes & Generics

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About this file format

.java (Java) is a class-based, object-oriented programming language compiled to JVM bytecode. It powers enterprise backends, Android applications, and large-scale systems, with strong typing, generics, and a rich standard library. Java is maintained by Oracle and the OpenJDK community.

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