Ruby Code Formatter

Ruby Code Formatter: Core Features and Principles

When writing Ruby scripts daily, messy indentation and inconsistent spacing can make project maintenance extremely difficult. This tool automatically formats and beautifies your Ruby source code, unifying indentation styles, aligning line breaks, and formatting operators. It outputs clean, standardized Ruby code, significantly improving readability and team collaboration efficiency.

Why Choose Our Ruby Code Formatter?

• Fully based on Ruby syntax tree parsing, ensuring the logic remains unchanged after formatting while only optimizing whitespace and line breaks.
• Supports custom indentation widths (2 or 4 spaces) to adapt to different project coding standards.
• Instant online processing with no plugins or Gems required. Ready to use out of the box and privacy-safe.

How to Use

1. Paste the complete Ruby code you want to format into the input box.
2. Select your preferred indentation width (e.g., 2 spaces) and click the "Format" button.
3. The system will instantly return the beautified code, which you can copy with one click or download as a .rb file.

Input Example (Messy Code):

def hello(name)
puts "Hello, #{name}";end

Output Example (Formatted):

def hello(name)
  puts "Hello, #{name}"
end

Frequently Asked Questions (FAQ)

• Will formatting change the execution result of my Ruby program?
  No. Formatting only adjusts indentation, line breaks, and extra spaces. It does not delete or modify any code syntax or logic, ensuring the execution results remain completely identical.
• Which Ruby version syntax features are supported?
  It supports mainstream syntax from Ruby 2.0 to 3.x, including new features like keyword arguments, pattern matching, and endless methods, parsing and beautifying them correctly.

Important Notes

Please do not input excessively large code files (recommended not to exceed 5MB per request) to avoid processing timeouts. The tool parses code entirely locally in your browser or on a secure backend and does not store any of your source files, so you can use it with peace of mind. If your code contains unconventional encoding or special Unicode spaces, it may affect the alignment. It is recommended to remove invisible characters before formatting.

Technical Notes & Best Practices

For Ruby projects, it is recommended to uniformly use 2-space indentation (following Ruby community conventions) and keep a blank line between methods. After using this tool, you can combine it with static analysis tools like RuboCop to further check for style issues. A typical best practice is to unify the style with a formatting tool before committing code, and then run tests. This effectively reduces formatting disputes during code reviews. For beginners, observing the differences before and after formatting is also a shortcut to learning Ruby coding style conventions.