A Ruby formatter restructures Ruby code with 2-space indentation (the Ruby community standard), properly indented do/end and def/end blocks, and blank lines between method definitions. Whether you are cleaning up Rails model code or reformatting a script before a pull request, this tool applies RuboCop-aligned conventions automatically.
Formatted Ruby will appear here...Example Snippets
How to Use the Ruby Formatter
Ruby code pasted from Stack Overflow, generated by Rails scaffolding, or written quickly in a script often lacks consistent indentation. A Ruby formatter applies the Ruby community's 2-space indentation standard and correctly indents do/end, def/end, class/end, and begin/rescue blocks, making your code review-ready instantly.
Step 1: Paste Your Ruby Code
Copy your Ruby code — a class, method, script, or snippet — and paste it into the input area. The formatter handles all Ruby block types: do...end, def...end, class...end, module...end, and begin...rescue...end.
Step 2: Choose Indentation
Ruby defaults to 2-space indentation per the community style guide and RuboCop defaults. Select 2 spaces (default), 4 spaces, or tabs if your project has custom conventions. Click Format Ruby to apply.
Step 3: Copy or Download
The formatted Ruby code appears on the right with syntax highlighting. Click Copy for clipboard access or Download to save as a .rb file.
Ruby Style Conventions
The Ruby community style guide (enforced by RuboCop) specifies 2-space indentation, snake_case method names, blank lines between method definitions, and spaces around operators. Hash rockets (=>) with string keys and symbol shorthand (key:) are both supported. Consistent formatting improves readability in Rails projects where multiple developers share codebase conventions.
FAQ
Is the Ruby formatter free?
Yes, completely free with no signup required. Format unlimited Ruby code in your browser.
Is my Ruby code safe?
Yes. All formatting runs locally in your browser. Your Ruby code is never sent to any server.
What indentation does the formatter use?
The formatter defaults to 2-space indentation, which is the Ruby community standard per the RuboCop style guide. You can switch to 4 spaces or tabs if needed.
Does the formatter handle Ruby blocks?
Yes. The formatter properly indents do/end blocks, def/end method definitions, class/end declarations, module/end structures, if/end conditionals, and begin/rescue/end error handling.
Can I minify Ruby code?
Yes. Click Minify to strip comments and collapse whitespace, reducing file size for deployment or obfuscation purposes.
What Ruby syntax does the formatter support?
The formatter handles Ruby 2.x and 3.x syntax including block syntax (do..end and {}), hash rockets and new-style symbol keys, heredocs, string interpolation, and method chaining.