JavaScript Formatter & Beautifier
Format, beautify, compress and obfuscate JavaScript code
JavaScript Processing
Drop JS files here
or use the button below to select files
Processing Result
Results will be displayed here after processing
Usage Instructions
Select Operation Type
Choose the operation to perform on JavaScript code: Format, Compress, or Obfuscate.
Configure Options
Configure the corresponding option parameters based on the selected operation type.
Provide Source Code
Upload JavaScript files or directly input code in the text box.
Execute Processing
Click the "Process Code" button to start processing.
Get Results
After processing is complete, you can view, copy, or download the processed code.
JavaScript Formatter Basics
What is Code Formatting
Code formatting is the process of rearranging code according to consistent style rules, including indentation, spaces, line breaks, quotation styles, etc. JavaScript formatting tools can automatically handle these details, making code more readable and maintainable.
Why Code Formatting Matters
A unified code style can improve team collaboration efficiency, reduce code review time, and lower the cost of understanding and maintaining code. Formatted code also makes it easier to spot syntax errors and logical issues, improving code quality.
Difference Between Formatting, Compression & Obfuscation
- Formatting: Makes code more readable, preserves all functionality
- Compression: Removes whitespace and comments, reduces file size
- Obfuscation: Renames variables and functions, increases code complexity to protect intellectual property
Common JavaScript Code Styles
- Standard JS: Semicolon-less style, uses double quotes
- Airbnb JS Style: Uses semicolons, 2-space indentation
- Google JS Style: Uses semicolons, 2-space indentation
- Prettier Default Style: 2-space indentation, double quotes
Prettier Formatting Principle
Prettier uses a two-stage process: first parsing code into an Abstract Syntax Tree (AST), then completely regenerating code regardless of original formatting. This ensures code style consistency but means some manual formatting details may be lost.
Code Formatting Best Practices
- Unify code style in team projects
- Use editor plugins for automatic formatting
- Format code before Git commits
- Use compressed code for production environments
API开发平台
快速构建、测试和部署API
推荐工具
HTML to Markdown Tool - Online Toolbox
Free Online HTML to Markdown Tool. It helps you convert HTML code to Markdown format, improving content processing efficiency.
GraphQL Formatting Tool - Online GraphQL Query and Schema Formatting Validation
Free Online GraphQL Formatting Tool. It supports formatting and syntax validation of GraphQL queries, mutations, subscriptions, and schemas, helping developers improve the quality of GraphQL code.
HTML 格式化工具 - 在线工具箱
Free Online HTML Formatting Tool. It helps you beautify and format HTML code, improving code readability.
YAML Formatting - Free Online YAML Tool
Free online YAML formatting and beautification tool that supports automatic indentation adjustment, syntax highlighting, and removes extra spaces, making your YAML code clear and easy to read. No installation required, one-click formatting to improve the readability and maintenance efficiency of YAML files!
XML Formatter Tool - Free Online XML Code Beautifier and Compressor
Free online XML formatter tool that supports XML code beautification, compression, validation, and other functions, making your XML code more standardized and readable. Provides real-time formatting preview and supports multiple XML formatting options.