Code Formatter & Beautifier

Free Online Code Beautifier for All Programming Languages

Swapcode's code formatter is a powerful online code beautifier that formats and beautifies code for free. Whether you need an HTML code beautifier, JavaScript code beautifier, JSON beautifier, Python code formatter, Java beautifier, PHP beautifier, SQL formatter, CSS beautifier, or XML formatter, our tool handles all 100+ programming languages with professional formatting.

What is a Code Beautifier?

A code beautifier (also called a code formatter or pretty printer) transforms messy, minified, or poorly formatted code into clean, readable code with proper indentation, spacing, and line breaks. Code beautification improves code readability, maintainability, and helps developers understand code structure at a glance.

HTML Code Beautifier

Our HTML code beautifier formats HTML markup with proper tag indentation and nesting hierarchy. Whether you have minified HTML from production, inline HTML from email templates, or messy markup from WYSIWYG editors, the HTML beautifier cleans it up instantly. Features include:

• Proper tag indentation and nesting
• Attribute formatting and spacing
• Line breaks between block elements
• DOCTYPE and meta tag formatting
• Support for HTML5 semantic elements

JavaScript Code Beautifier (JS Beautifier)

The JavaScript code beautifier handles modern JavaScript syntax including ES6+, TypeScript, JSX, React, Vue, Angular, and Node.js code. Our JS code beautifier formats:

• Arrow functions and async/await
• Template literals and destructuring
• Classes and modules (import/export)
• Spread operators and rest parameters
• JSX and React components
• TypeScript types and interfaces

Beautify JSON Code Online

The JSON beautifier transforms compact or minified JSON into readable format with proper indentation. Perfect for beautifying API responses, config files (package.json, tsconfig.json), and data structures. The JSON formatter adds proper spacing, line breaks, and indentation to show the JSON hierarchy clearly.

Python Code Beautifier

Beautify Python code following PEP 8 style guidelines. The Python code beautifier handles proper indentation (4 spaces), spacing around operators, line breaks between functions and classes, and imports organization. Perfect for cleaning up Python scripts, Django code, Flask applications, and data science notebooks.

Java Code Beautifier

The Java code beautifier formats Java classes, methods, interfaces, and annotations with proper indentation. It handles Java-specific syntax including generics, lambdas, streams, and annotations. Perfect for enterprise Java applications, Spring Boot projects, and Android development.

PHP Code Beautifier

Beautify PHP code for WordPress themes, Laravel applications, and custom PHP scripts. The PHP beautifier handles mixed PHP and HTML, namespaces, classes, and modern PHP syntax. It formats code following PSR standards for consistent, professional PHP code.

SQL Code Beautifier

The SQL code beautifier formats database queries for MySQL, PostgreSQL, Oracle, SQL Server, and other databases. It adds proper indentation to:

• SELECT, FROM, JOIN clauses
• WHERE conditions and AND/OR logic
• GROUP BY and ORDER BY clauses
• Subqueries and CTEs
• Stored procedures and functions

CSS Code Beautifier

The CSS code beautifier formats CSS and SCSS stylesheets with proper indentation, line breaks between rules, and spacing for selectors and properties. It handles media queries, pseudo-classes, CSS Grid, Flexbox, and modern CSS features with clean formatting.

XML Code Beautify

Beautify XML code with proper tag indentation and hierarchy visualization. Perfect for formatting XML config files, SOAP responses, RSS feeds, and data exchange formats. The XML beautifier shows parent-child relationships clearly with proper nesting.

Why Use an Online Code Beautifier?

Code beautification offers several benefits:

• Improved Readability: Clean code is easier to read and understand
• Easier Debugging: Formatted code makes bugs more visible
• Code Review: Beautified code is easier to review
• Maintainability: Well-formatted code is easier to maintain
• Learning: Clean code helps understand structure and patterns
• Team Consistency: Standardized formatting across projects
• Minified Code Recovery: Make minified production code readable

Free Code Beautifier for All Users

Swapcode's online code beautifier is completely free with no login required and no limits. Unlike paid tools or desktop applications, our web-based formatter works instantly in your browser. Beautify HTML, JavaScript, JSON, Python, Java, PHP, SQL, CSS, XML, and 100+ other programming languages for free.

How to Use the Code Formatter

Using our code beautifier is simple:

1. Paste your messy or minified code into the editor
2. Select the programming language from the dropdown
3. Click "Format Code" to beautify instantly
4. Copy the formatted code with proper indentation
5. Download or export if needed

Browser-Based Code Formatting

Our code beautifier processes code entirely in your browser using JavaScript formatting libraries. Your code never leaves your computer, ensuring complete privacy and security. No installation required – just paste, format, and copy your beautified code.

100+ Programming Languages Supported

Our online code beautifier supports all major programming languages including HTML, JavaScript, JSON, Python, Java, PHP, SQL, CSS, XML, TypeScript, C++, C#, Ruby, Go, Rust, Swift, Kotlin, and many more. Every language gets proper syntax-aware formatting with correct indentation rules.

Perfect for Developers, Students, and Teams

Whether you're a professional developer cleaning up production code, a student learning to code, or a team maintaining consistent code formatting standards, our free online code beautifier helps you write clean, readable code effortlessly.