TypeScript Formatter

The TypeScript Formatter is an online tool that formats and beautifies TypeScript code to improve readability and maintainability. This tool automatically indents, spaces, and organizes your TypeScript code according to best practices, making it easier to read, debug, and collaborate on TypeScript projects.

What is this tool for?

Our TypeScript Formatter tool is perfect for developers, code reviewers, and teams working with TypeScript. Whether you're cleaning up minified code, standardizing code style across a team, preparing code for review, or learning TypeScript best practices, this tool helps you format your code consistently and professionally.

Common use cases include:

• Formatting TypeScript code for better readability
• Standardizing code style across team projects
• Cleaning up minified or compressed TypeScript files
• Preparing code for code reviews and documentation
• Learning TypeScript formatting best practices
• Converting unformatted code to properly indented format

How to Use the Tool

1. Enter your TypeScript code: Paste your TypeScript code into the input box, or use the file upload button to select a TypeScript file (.ts or .tsx) from your computer.
2. Configure formatting options (optional):
   • Set indentation size (1-8 spaces)
   • Choose brace style (Preserve Inline, Collapse, Expand, etc.)
   • Set maximum preserved newlines
   • Toggle space after anonymous functions
   • Toggle end with newline
   • Toggle preserve newlines
3. View formatted code: The tool automatically formats your code in real-time as you type or modify options. The formatted output appears in the right panel.
4. Copy or download: Use the copy button to copy the formatted code to your clipboard, or download it as a .ts file.

Understanding TypeScript Formatting

TypeScript is a typed superset of JavaScript that compiles to plain JavaScript. Proper formatting of TypeScript code is essential for:

• Readability: Well-formatted code is easier to read and understand
• Maintainability: Consistent formatting makes code easier to maintain and update
• Collaboration: Standardized formatting helps team members work together effectively
• Debugging: Properly formatted code is easier to debug and troubleshoot
• Code Review: Formatted code makes reviews more efficient and focused on logic rather than style

Formatting Options

• Indentation Size: Controls the number of spaces used for indentation (typically 2 or 4 spaces)
• Brace Style: Determines how braces are formatted:
  • Preserve Inline: Keeps braces on the same line if they were originally inline
  • Collapse: Places opening braces on the same line
  • Expand: Places opening braces on a new line
  • End Expand: Places closing braces on a new line
• Space After Anonymous Function: Adds a space after anonymous function declarations
• End with Newline: Ensures the file ends with a newline character
• Preserve Newlines: Maintains existing line breaks in the code
• Max Preserve Newlines: Maximum number of consecutive newlines to preserve

Example

Before Formatting:

interface User {id: number;name: string;email: string;}class UserService {private users: User[]=[];getUser(id: number): User|undefined {return this.users.find(u=>u.id===id);}addUser(user: User): void {this.users.push(user);}}

After Formatting:

interface User {
    id: number;
    name: string;
    email: string;
}

class UserService {
    private users: User[] = [];

    getUser(id: number): User | undefined {
        return this.users.find(u => u.id === id);
    }

    addUser(user: User): void {
        this.users.push(user);
    }
}

Features

• Real-time formatting: See formatted code instantly as you type
• Customizable options: Adjust indentation, brace style, and other formatting preferences
• File upload support: Upload TypeScript files directly from your computer
• Syntax highlighting: TypeScript code is displayed with proper syntax highlighting
• Copy and download: Easily copy formatted code or download as a .ts file
• TypeScript support: Handles TypeScript-specific syntax including types, interfaces, and generics
• Privacy-focused: All processing happens in your browser - your code never leaves your device

TypeScript-Specific Features

The formatter properly handles TypeScript-specific syntax:

• Type annotations: Formats type annotations and type declarations
• Interfaces: Properly formats interface definitions
• Classes: Formats class declarations with proper indentation
• Generics: Handles generic type parameters correctly
• Enums: Formats enum declarations
• Type aliases: Formats type alias definitions
• Union and intersection types: Properly formats complex type expressions