gnu-indent ☆

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Description:
C code prettifier

Type: Formula | Tracked Since: Dec 28, 2025

Links: Homepage | formulae.brew.sh

Category: Developer tools

Tags: c formatting code-style developer-tools cpp

Install: brew install gnu-indent

About:
GNU Indent is a command-line utility designed to format C source code according to a specified coding style. It parses C code and reformats it, enhancing readability and maintaining consistent structure across projects. The tool is highly configurable, allowing developers to define custom indentation, spacing, and brace placement rules.

Key Features:

Supports multiple coding styles (K&R, ANSI, GNU)
Highly customizable formatting rules via command-line flags
Can format code in place or output to a new file
Handles both C and C++ source files

Use Cases:

Standardizing code style across a legacy C/C++ codebase
Automating code formatting in build pipelines
Preparing code for review to ensure consistency

Alternatives:

clang-format – More modern, supports more languages, and integrates better with IDEs.
astyle – Artistic Style is another popular formatter with similar features and style options.

Version History

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