Java Beautifier

Paste compact Java source and expand it into readable, consistently indented code.

Last updated: May 29, 2026

Indent:Preserve blank linesFinal newline

Messy or Minified Java Code

1 lines, 122 B

Beautified Java Code

public class Main {
  public static void main(String[] args) {
    int sum=0;
    for(int i=0;i<5;i++) {
      sum+=i;
    }
    System.out.println(sum);
  }
}

9 lines, 159 B

Input: 1 linesOutput: 9 linesSize: 159 B

Client-Side Processing

Input Data Stays on Device

Instant Local Execution

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What is Java Beautifier?

Java Beautifier formats Java snippets so classes, methods, loops, and conditionals are easier to read. It is designed for quick browser-side cleanup of copied source, small examples, and compact code blocks. The formatter is intentionally lightweight and focuses on indentation and line breaks rather than compiling or rewriting the program, so your logic stays exactly as written.

How to Use Java Beautifier

Paste Java source code.

Choose indentation style.

Click Format.

Review the beautified Java output.

Copy or download the .java file.

Common Use Cases

Cleaning Java examples before adding them to documentation or a tutorial.
Reading compact code copied from a Stack Overflow answer or issue thread.
Making short Java snippets easier to review in code review.
Preparing code samples for slides or blog posts.

Example Input and Output

A compact Java method is expanded into readable lines.

Compact Java

int add(int a,int b){int total=a+b;return total;}

Beautified Java

int add(int a,int b) {
  int total=a+b;
  return total;
}

Privacy

Java code is beautified locally in the browser and is not uploaded.

Frequently Asked Questions

Does this compile or validate Java?

No. It formats text for readability only. Use javac or your IDE to validate syntax.

Will it change my program behavior?

No. It only adjusts whitespace and line breaks, never the code itself.

Does it handle for loops and generics?

Yes. Semicolons inside for loop parentheses stay on the same line, and generic type arguments are left untouched.

Is my source code uploaded anywhere?

No. Beautification runs entirely in your browser.

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