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CSharpier
What it is
CSharpier is a free, open-source formatter for C# and XML. It parses files and reprints them using its own formatting rules, with only a few basic options. The project says it supports C# through version 14. Configuration can be stored in .csharpierrc JSON or YAML files or in .editorconfig, covering print width, tabs, indentation, and line endings. CSharpier runs as a .NET tool installed locally for a project or globally. It can check formatting and returns a failing exit code by default when files are unformatted. You can run it as a pre-commit hook, during MSBuild builds, or in CI/CD workflows. Listed editor integrations include 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 formatting through code. It runs on Windows, macOS, and Linux. Files that cannot compile produce error diagnostics instead of being formatted.
For and against
For
- Free open-source .NET tool
- Supports C# through version 14
- Runs on Windows, macOS, and Linux
- Editor plugins and CI integration
- Programmatic NuGet API
Against
- Formatting options are intentionally limited
- Non-compiling code cannot be formatted
- No free trial because it is open source
The verdict
CSharpier offers consistent C# and XML output across editors and automation. Its own formatting philosophy and inability to process non-compiling code may not fit projects needing extensive style controls.
Who it suits
CSharpier suits developers who want opinionated C# and XML formatting in projects, editors, builds, or CI pipelines. It is also useful when formatting checks need a failing exit code.
Plans and prices
Free
Opinionated formatting for C# and XML · install as a .NET tool
Read 4 Oct 2026 · csharpier.com
On the record
- Automation
- CSharpier can run as a pre-commit hook, during MSBuild builds, or in CI/CD workflows.csharpier.com · read 4 Oct 2026
- Configuration
- Configuration can use .csharpierrc JSON or YAML files or .editorconfig, with options including print width, tabs, indentation, and line endings.csharpier.com · read 4 Oct 2026
- C# support
- The homepage says CSharpier works with C# through version 14.csharpier.com · read 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.csharpier.com · read 4 Oct 2026
- Formatter philosophy
- It provides a few basic formatting options and says option requests are out of scope.csharpier.com · read 4 Oct 2026
- Formatting limitation
- CSharpier’s API documentation says code that cannot compile cannot be formatted and returns error diagnostics.csharpier.com · read 4 Oct 2026
- Install options
- CSharpier is implemented as a .NET tool that can be installed locally for a project or globally.csharpier.com · read 4 Oct 2026
- 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.github.com · read 4 Oct 2026
- Programmatic API
- The CSharpier.Core NuGet package exposes programmatic formatting for C# and XML.csharpier.com · read 4 Oct 2026
- Purpose
- CSharpier parses C# and XML code and reprints it using its own formatting rules.csharpier.com · read 4 Oct 2026
- Security and compliance
- The official pages opened provide no security or compliance claims.csharpier.com · read 4 Oct 2026
- Validation
- CSharpier can check whether files are formatted and reports unformatted files with a failing exit code by default.csharpier.com · read 4 Oct 2026
