CSharpier
CSharpier is a free, open-source formatter that parses C# and XML code and reprints it according to its own formatting rules.
What CSharpier is
CSharpier is a free, open-source formatter that parses C# and XML code and reprints it according to its own formatting rules. It supports C# through version 14 and runs on Windows, macOS, and Linux. CSharpier is a .NET tool that can be installed for an individual project or globally. Its configuration is deliberately limited, with settings such as print width, tabs, indentation, and line endings available in .csharpierrc JSON or YAML files or .editorconfig. It can check whether files are formatted and, by default, returns a failing exit code when they are not. Teams can run it as a pre-commit hook, during MSBuild builds, or in CI/CD workflows. Official editor extensions or plugins are listed for Visual Studio 2022, Visual Studio 2019, Visual Studio Code, and Rider, with setup guidance for Neovim, Emacs, and Zed. The CSharpier.Core NuGet package exposes a programmatic API for formatting C# and XML. Code that cannot compile cannot be formatted and produces error diagnostics.
Good
- Formats C# and XML code.
- Runs on Windows, macOS, and Linux.
- Can check formatting with a failing exit code.
- Supports editor plugins and a programmatic API.
- Can run in pre-commit hooks and CI/CD.
Watch out
- Code that cannot compile cannot be formatted.
- Formatting options are intentionally limited.
Who it suits
CSharpier suits C# and XML developers who want a consistent formatter integrated into editors, builds, or CI/CD. Its opinionated approach is a fit for users comfortable with a small set of formatting options.
Verdict
CSharpier provides a consistent formatting workflow for C# and XML across editors and automation. Its limited configuration and inability to format uncompilable code are important constraints to consider.
Plans and prices
From CSharpier's own pricing page, checked 4 Oct 2026.
| Plan | Price | What it gives you |
|---|---|---|
| Free | Free | Opinionated formatting for C# and XML · install as a .NET tool |
The facts
Each one read from CSharpier's own pages, with the date it was checked.
What it does
- Automation
- CSharpier can run as a pre-commit hook, during MSBuild builds, or in CI/CD workflows.checked 4 Oct 2026
- Configuration
- Configuration can use .csharpierrc JSON or YAML files or .editorconfig, with options including print width, tabs, indentation, and line endings.checked 4 Oct 2026
- C# support
- The homepage says CSharpier works with C# through version 14.checked 4 Oct 2026
- Editor integrations
- Official extensions or plugins are listed for Visual Studio 2022, Visual Studio 2019, Visual Studio Code, and Rider; the page also describes setups for Neovim, Emacs, and Zed.checked 4 Oct 2026
- Formatter philosophy
- It provides a few basic formatting options and says option requests are out of scope.checked 4 Oct 2026
- Formatting limitation
- CSharpier’s API documentation says code that cannot compile cannot be formatted and returns error diagnostics.checked 4 Oct 2026
- Install options
- CSharpier is implemented as a .NET tool that can be installed locally for a project or globally.checked 4 Oct 2026
- Programmatic API
- The CSharpier.Core NuGet package exposes programmatic formatting for C# and XML.checked 4 Oct 2026
- Purpose
- CSharpier parses C# and XML code and reprints it using its own formatting rules.checked 4 Oct 2026
- Security and compliance
- The official pages opened provide no security or compliance claims.checked 4 Oct 2026
- Validation
- CSharpier can check whether files are formatted and reports unformatted files with a failing exit code by default.checked 4 Oct 2026
The company
- Maker identity
- The project links to a public GitHub repository under the belav account; the official site does not identify a company headquarters or founding date.checked 4 Oct 2026
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