Razor Formatter

Formats Razor templates and mixed HTML/C# code for developers using ASP.NET, Razor Pages, or Blazor, improving readability and maintainability.

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808+

Total Calculations Run

< 15ms

Browser Execution Speed

100%

Client-Side Privacy

4.9 / 5.0

User Satisfaction

Worked Example & Common Values

Below is a sample worked calculation demonstrating how Razor Formatter processes input data instantly inside your browser.

Sample Input Minified string: {"id":1,"status":"active","roles":["admin"]}

Computed Result

{
  "id": 1,
  "status": "active",
  "roles": [
    "admin"
  ]
}

Execution Mode Client-Side In-Browser JS

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About This Tool

Razor Formatter Online is a language aware transformation tool that formats Razor syntax embedded in HTML to a consistent readable structure. It handles directives, code blocks and inline expressions while preserving semantics and applying indentation, spacing and line wrapping rules.

Core logic and features include parsing Razor templates, building an internal representation, applying formatting rules for indentation, directive placement, and operator spacing, and outputting a canonical version. Optional features include preserving comments, configurable tab size, and custom formatter rules.

Audience includes ASP.NET developers using Razor Pages, MVC views, or Blazor components. Value lies in reducing cognitive load during code reviews, improving diffs in version control, and enforcing a single style across teams. It also supports integration into editors and CI pipelines to promote consistent formatting across a codebase.

Unique differentiators are deterministic results across different editors, semantic preservation of Razor constructs, support for mixed HTML and C# inside Razor files, and a lightweight footprint suitable for local or cloud based workflows.

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How to Use

Provide Razor code input with mixed HTML and C# blocks.
Apply the formatting rule set or use the default Razor formatting configuration.
Run the transformation to produce the formatted output.
Review the formatted Razor text for correctness and readability.
Copy or export the formatted code for integration into your project.

Frequently Asked Questions

Find Quick Answers

What is Razor Formatter Online and who should use it?

Razor Formatter Online is a formatting tool for Razor templates used in ASP.NET Core projects. It helps developers and teams maintain a consistent style across views, pages, and components, reducing review time and diffs.

Does formatting change the behavior of Razor code?

No. The formatter preserves the semantics of Razor templates. It only adjusts whitespace, indentation, and layout to produce a canonical, readable representation without altering runtime behavior.

What inputs are required to format code?

You provide the Razor template text as input and may optionally specify formatting preferences such as tab size or custom rules. If no preferences are supplied, a safe default configuration is used.

Where can this be used in a development workflow?

It can be used locally in IDE workflows, as part of pre-commit or CI pipelines, or as an online helper for quick formatting. It supports Razor Pages, MVC views, and Blazor components in ASP.NET Core projects.

Need to run multiple calculations?

Create a free account today to unlock unlimited daily runs, access advanced parameters, save your history, and request custom features.

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