#147 · Programming Language Tools Developer Tool

C# Formatter

Format C# source code with configurable indentation, brace placement, using-directive sorting, whitespace cleanup, and line-ending normalization while preserving strings and comments.

Developer Input

C# code formatting

C# source code

using System.Collections.Generic;
using System;
namespace Demo { public class UserService{public int Count{get;private set;} public void Add(string name){if(!string.IsNullOrWhiteSpace(name)){Count++;}}}}

Processing mode

Indent size

spaces

Sort using directives Preserve empty lines Normalize spacing Auto-run while typing

How to use this developer tool

Paste or type the source code in the input editor.
Select the processing mode and adjust the numeric threshold or indentation option.
Enable the checks needed for this task.
Run the tool, review the status and report, then copy or download the result.

What this developer tool does

Formatted c# source code is produced locally in your browser and remains copy-ready.

Uses lexical masking to protect literals and comments, then normalizes braces, indentation, directives, line endings, and optional spacing rules.

The formatter is deterministic and copy-ready, but Roslyn formatting may differ for advanced language constructs.

Example

Input: Paste the included sample source. Output: Run C# Formatter to produce a declaration report, validation result, formatted source, conversion, or generated template. The sample is executable and can be replaced with your own code.

Tips for better output

Use complete source files when possible so declarations and scopes can be detected reliably.
Run formatter or viewer output through the relevant validator before committing changes.
For compiler-authoritative results, verify the final code with the target JDK or .NET SDK.

FAQ

How do I use a C# Formatter online?

Paste your C# source, select the required mode and options, then run the tool to produce a copy-ready result and analysis report.

Can this C# Formatter process code without uploading it?

Yes. Processing runs locally in the browser, so the source is not sent to a server by this page.

What errors can the C# Formatter detect?

The tool detects the common structural, delimiter, declaration, formatting, or conversion issues relevant to its selected mode.

Does the C# Formatter support large source files?

It is optimized for large pasted files and debounces automatic processing, though extremely large or generated files may be better handled in an IDE.

Is the C# Formatter a replacement for a compiler?

No. It is a fast browser-based development aid; compile with the appropriate JDK or .NET SDK for authoritative results.

Related developer tools

TypeScript Checker TypeScript Generator TypeScript Formatter TypeScript Converter

Analysis modules

Module	Purpose
Lexical masking	Protects comments and literals during structural analysis.
Source analysis	Formatted C# source code.
Live metrics	Characters, lines, bytes, status, and measured processing time.

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