Java Beautifier
Beautify and validate Java instantly. Clean messy Java code, improve readability, spot common structure issues, and export formatted output for learning, interviews, backend work, and debugging.
Beautifier Controls
Controls are placed above the editors so you get more width and height for large Java files.
Best for
Java classes, interview snippets, utility methods, and backend structure cleanup.
Status
Paste Java code and click format or validate.
Indentation
2 spaces
Brace style
kandr
Input lines
13
Error location
-
Included features
- Top control panel for larger input and output editors.
- Line numbers in both panes for easier navigation.
- Error line highlighting in the input gutter.
- One-click jump to the detected error line.
- Code-frame style error preview for invalid Java.
- Upload, format, validate, copy, and download support.
- Brace style selection and lightweight Java syntax highlighting.
Java error details
Paste Java code and click format or validate.
An exact line and column could not be detected from the validator.
What can this Java beautifier do?
This tool formats Java code for readability, validates basic structure, highlights detected error lines, shows a code-frame preview, and provides line-number editors with upload, copy, and download support.
Common use cases
Use it for Java classes, interview snippets, backend utilities, object-oriented practice, cleanup before sharing code, and quick structure checks while debugging.