Java Code Formatter Online • Vinish.Dev

Format and beautify Java code with syntax highlighting and automatic indentation

Upload a Java file or paste your code - it will be automatically formatted with proper indentation and styling

Auto-formats on upload or paste

Actions:

Indentation Size:

4 spaces

Formatting Options:

Compact Mode (minimal spaces) Preserve Empty Lines Wrap Long Comments

Editor Options:

Line Wrapping Auto Close Brackets Highlight Matching Brackets Show Cursor When Selecting Highlight Selection Matches Smart Indentation

Font Size:

14px

Lines: 0 | Characters: 0 | Size: 0 KB

Auto-formatted!

About Java Code Formatter Online Tool

Professional Java code formatter and beautifier with syntax highlighting, automatic indentation, and code optimization. Perfect for developers, students, and code reviews.

🎨 Smart Code Formatting

Automatically formats Java code with proper indentation, spacing, and bracket placement. Follows Java coding standards and best practices for clean, readable code.

🌈 Syntax Highlighting

Rich syntax highlighting for Java keywords, strings, comments, numbers, and types. Makes code easier to read and helps identify syntax errors quickly.

📊 Line Numbers & Stats

Built-in line numbers and real-time statistics showing line count, character count, and file size. Perfect for code analysis and documentation.

⚡ Instant Auto-Formatting

Real-time auto-formatting when you paste code or upload files. No manual formatting needed - code is beautified instantly with proper indentation.

📁 File Support

Upload .java files directly or paste code from clipboard. Download formatted code as .java files with proper formatting preserved.

⚙️ Customizable Settings

Adjust indentation size from 2 to 8 spaces. Copy formatted code to clipboard or download as file for easy integration into your projects.

How to Use Java Code Formatter

Input Your Code: Either upload a .java file using the "Upload Java File" button or paste your Java code directly into the editor area.
Automatic Formatting: The code is automatically formatted and highlighted as soon as you paste or upload. No need to click any format button!
Customize Settings: Adjust the indentation size using the slider (2-8 spaces) to match your coding standards or project requirements.
Review Results: Check the formatted code with line numbers and syntax highlighting. View real-time statistics for lines, characters, and file size.
Export Your Code: Use "Copy Code" to copy to clipboard or "Download" to save as a .java file with proper formatting.
Clear and Repeat: Use "Clear All" to start fresh with new code. Perfect for formatting multiple Java files quickly.

💡 Java Formatting Best Practices

Indentation: Use consistent spacing (2-4 spaces recommended) for nested code blocks and method bodies.
Braces: Follow standard Java brace placement conventions for classes, methods, and control structures.
Line Length: Keep lines under 120 characters for better readability and code review processes.
Spacing: Add spaces around operators, after commas, and around keywords for improved readability.
Comments: Preserve comment formatting while maintaining proper indentation alignment.
Imports: Organize import statements and remove unused imports for cleaner code structure.

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