Ruby Formatter
Format and beautify Ruby code with clean indentation and block structure
Ruby Formatting Tips
- Use 2-space indentation as recommended by the Ruby community style guide.
- Prefer do..end for multi-line blocks and {..} for single-line blocks.
- Use frozen string literals for better performance in modern Ruby.
Professional Ruby Formatter Processing Features
Everything you need to work with Ruby Formatter data efficiently and professionally
Block Detection
Automatically detects def/end, class/end, module/end, do/end, if/end, and begin/rescue blocks.
Beautify Ruby Code
Transform messy Ruby code into clean, consistently indented code following community style conventions.
Block Formatting
Properly format do..end blocks, brace blocks, and method chains with consistent indentation.
Hash & Array Formatting
Correctly format hashes, arrays, and keyword arguments with proper alignment and trailing commas.
Fast Processing
Format Ruby files up to 10MB instantly with client-side processing, no server round-trips needed.
Rails Aware
Understands Rails conventions including scopes, associations, validations, and callback blocks.
How It Works
Simple steps to process your Ruby Formatter like a pro
Paste Your Ruby Code
Paste your Ruby source code into the input area, or load a sample to get started.
Customize Options
Choose indentation size to match your project conventions.
Format & Review
Click the format button to beautify your Ruby code and review the clean output.
Copy or Download
Copy the formatted code to your clipboard or download it as a file for your project.
Professional Ruby Formatter Formatter & Validator
Ruby Formatter processing runs entirely in your browser — no uploads, no accounts, no limits.
Processing method
Use this tool’s examples, syntax limits and source documentation to understand its output.
Key Technical Features:
- • Ruby syntax-aware parsing with keyword matching
- • Support for Ruby 3.x features including pattern matching
- • Intelligent indentation for def/end, do/end, class/end blocks
- • Client-side processing for maximum security and speed
- • Support for large files up to 10MB
Processing and output
Check the stated processing method and compare the result with your input before using it.
Security & Privacy:
- • 100% client-side processing - data never sent to servers
- • No tracking, cookies or data collection
- • HTTPS encryption for secure connections
- • No data stored or cached after processing
- • GDPR and CCPA compliant approach
Why Professionals Choose EZ Formatter
Your data stays in your browser
Frequently Asked Questions
Common questions about Ruby Formatter formatting answered
Yes, our Ruby formatter is completely free with no registration required. All processing happens in your browser.
The formatter is optimized for pure Ruby (.rb) files. ERB templates with embedded Ruby have limited support.
Yes, it supports modern Ruby features including pattern matching, endless methods, and hash pattern syntax.
No. The formatter only adjusts whitespace and indentation. It never modifies identifiers, methods, or logic.
It follows the community Ruby style guide with 2-space indentation, consistent spacing, and proper block formatting.
The Ruby community style guide (rubocop's default profile, which Shopify and GitHub both base theirs on): 2-space indent, single quotes by default, no explicit return, and trailing commas in multiline literals. RuboCop is the reference implementation - its defaults define "idiomatic Ruby" in practice.
do...end blocks (multiline, side-effecting) and { } blocks (single-line, value-returning) keep their brace style - the convention communicates intent. Modifier clauses (puts x if valid) stay on one line when short; the formatter does not expand them, matching community style.
Interpolation #{expr} contents are never re-spaced; heredocs (<<~SQL squiggly-heredoc, Ruby 2.3+) keep their body literal with only the minimal-indent removal that <<~ itself defines. Frozen-string magic comments (# frozen_string_literal: true) stay pinned on the first line - moving them breaks their file-scoped effect.
Authoritative References
Standards and official documentation that define the formats this tool works with.
Ruby Style Guide - rubocop/ruby-style-guide
The Ruby community style guide that RuboCop enforces by default.
RuboCop - The Ruby Linter/Formatter
RuboCop — the static analyzer and formatter that defines idiomatic Ruby in practice.
Ruby (programming language) - Wikipedia
Ruby syntax and design: blocks, everything-is-an-object, and expressive DSLs.
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