Black vs CSharpier

Black is a free, MIT-licensed formatter for Python code that follows PEP 8. It reformats whole files in place and uses a default line length of 88 characters. Its limited style choices are intended to keep code consistent across projects; indentation style cannot be configured. After formatting, Black checks whether the abstract syntax tree remains effectively equivalent and raises an error if the check fails. Install it with pip; it requires Python 3.10 or newer. The documentation lists editor integrations including Emacs, PyCharm, IntelliJ IDEA, Vim, Neovim, Visual Studio Code and Sublime Text, as well as GitHub Actions and doctest workflows. Notebook formatting is available with the jupyter extra, though Black skips cells containing certain magics or invalid syntax. It also includes blackd, an HTTP server that binds to localhost by default. Black is primarily a command-line tool and does not provide a Python interface. Stable releases preserve formatting within the same calendar year when the options match.

CSharpier is a free, open-source formatter for C# and XML. It parses source files and reprints them using its own formatting rules, with only a few basic options rather than a broad set of style switches. The homepage states support through C# version 14. Configuration can be kept in .csharpierrc JSON or YAML files or in .editorconfig, covering print width, tabs, indentation, and line endings. CSharpier runs as a .NET tool, installed for one project or globally, and CSharpier.Core provides a NuGet API for formatting from code. It can check files and returns a failing exit code by default when formatting is incorrect. Automation options include pre-commit hooks, MSBuild builds, and CI/CD workflows. Integrations are listed for Visual Studio 2022 and 2019, Visual Studio Code, Rider, Neovim, Emacs, and Zed. It runs on Windows, macOS, and Linux. Code that cannot compile produces error diagnostics instead of being formatted.