Ruby Beautifier: Format and Indent Ruby Code Online Free
Ruby Beautifier is a basic, conservative tool for re-indenting Ruby code according to keyword/end blocks such as def, class, if, unless, while, until, case, and begin. Choose an indentation setting and available options, then copy the formatted output. Strings, comments, heredocs, and regex literals are never altered; this is not a full Ruby formatter.
Ruby Beautifier is a basic online tool for re-indenting Ruby code. It uses a conservative, keyword/end-aware approach to Ruby structures, including def, class, if, unless, while, until, case, and begin. Use it to make code easier to scan without expecting a complete Ruby formatting pass.
The tool adjusts indentation around these keywords and their matching end markers. You can choose an indentation setting and available options before formatting; the specific option names and behaviors are not described here. Strings, comments, heredocs, and regex literals are never altered. Ruby Beautifier is labeled basic because no reliable in-browser full Ruby formatter is wired here yet.
Ruby is a programming language whose blocks commonly use keywords and end markers, so consistent indentation can make nested code easier to follow. Re-indenting is useful when preparing generated code for review, comparing code with a style spec, reducing whitespace noise in diffs, or sharing a snippet. The tool focuses on indentation rather than promising a complete rewrite of Ruby formatting.
Ruby Beautifier runs entirely in your browser: your input is processed on your device and is not sent to a server. It requires no signup, and once the page has loaded, it can work offline. This makes it useful for developers and DevOps engineers who want a quick way to improve Ruby code readability while keeping their input local.
Step 1: Paste or drop your Ruby code into the input area. The tool works with Ruby input.
Step 2: Choose the indentation setting and any available options. The tool description does not list specific option names or behaviors.
Step 3: Run Ruby Beautifier to re-indent the code using its keyword/end-aware rules.
Step 4: Review the formatted output, especially around blocks opened with keywords such as def, class, and case.
Step 5: Copy the output for your editor, code review, commit, or bug report.
Use case: Make an unreadable, machine-generated Ruby file easier to review before you commit it by applying consistent indentation.
Use case: Check the indentation of a Ruby document you did not write against the style spec you need to follow.
Use case: Reduce whitespace noise in diffs so reviewers can focus more easily on code changes.
Use case: Format a Ruby snippet before pasting it into a bug report or code review.
Use case: When Ruby's own syntax check reports a problem, re-indent the surrounding code to make its block structure easier to inspect.
Use case: Tidy a Ruby example before sharing it with teammates, while keeping strings, comments, heredocs, and regex literals unchanged.