A code formatter is an automated tool designed to adjust source code according to a predefined set of formatting rules, covering areas such as indentation, spacing, and line breaks. This improves readability and consistency while ensuring the code’s functionality remains unchanged. It saves developers valuable time and helps minimize disagreements over style preferences.
Using this type of software means coders cede control over the minutiae of hand-formatting. In return, the software offers speed, determinism, and freedom from style-checker nagging about formatting. Save time and mental energy for more important matters.
This roundup selects some useful code formatters for Ruby developers.
Here’s our verdict captured in a legendary LinuxLinks-style ratings chart. Only free and open source software is eligible for inclusion.
Click the links to learn more about each tool.
| Ruby Code Formatters | |
|---|---|
| RuboCop | Checks style, detects potential problems, and autocorrects offences |
| Standard Ruby | Combines linting and automatic fixes with a shared set of rules |
| rubyfmt | Applies a consistent style with minimal configuration required |
| Syntax Tree | Toolkit for parsing, inspecting, and transforming source files |
| Rufo | Keeps source files tidy with an opinionated approach to style |
| alofmt | Delivers fast, deterministic formatting for consistent results |
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