Using the Java Formatter is simple — just three steps:
Java code formatting follows the Google Java Style Guide and Sun coding conventions. This tool helps you auto-beautify Java code:
• Auto Indentation — Detect class, method, and control flow nesting levels
• Brace Style — K&R style (same-line {) or Allman style (next-line {)
• Operator Spacing — Add proper spaces around =, +, -, ==, etc.
• Blank Line Cleanup — Remove consecutive blank lines, keep reasonable spacing between methods
• Import Sorting — Sort import statements alphabetically
Note: This tool provides basic formatting without complex AST analysis. All processing is done locally in your browser.
No. Formatting only adjusts whitespace and layout. The code remains functionally identical before and after formatting.
K&R style places the opening brace on the same line (if (x) {), while Allman style places it on a new line. Both are valid; it's a matter of preference.
Supports classes, interfaces, enums, annotations, generics, lambda expressions, switch expressions, and other basic Java structures.