Online HTML Formatter
Format, validate, and beautify your HTML code. Perfect for web development, templates, and markup optimization.
Professional HTML Formatter & Web Development Tool
Transform your messy HTML code into perfectly formatted, readable web pages with our advanced HTML formatter. This powerful HTML beautifier and pretty-printer is designed for web developers, designers, and content creators who work with HTML on a daily basis. Whether you're formatting web pages, email templates, HTML emails, or cleaning up exported HTML from content management systems, our tool ensures your HTML is clean, properly indented, and easy to read. Support for multiple indentation styles and HTML standards allows you to match your project's coding standards. Our HTML linter also helps identify structural issues and syntax problems, making it an essential tool for web development and HTML maintenance.
Clean up your messy HTML into a human-readable format. Our tool automatically indents your code, making it easy to read and understand web pages.
Instantly validate your HTML data. Our tool acts as an HTML checker, highlighting syntax errors and providing clear messages to help you debug and fix your code.
Seamlessly convert your HTML data to other popular formats like JSON, XML, and YAML. Our powerful conversion tools simplify data transformation between different systems.
Explore your HTML data in a structured tree view. This feature allows you to easily navigate through complex nested elements and attributes in your web pages.
Directly upload your HTML files to format them. Once you are done formatting or converting, you can download the result as a file, streamlining your workflow without copy-pasting.
Your data's privacy is paramount. All formatting and validation happen directly in your browser. No data is sent to our servers, ensuring your information remains secure.
Advanced HTML Validation & Standards Compliance
Our HTML formatter doubles as a comprehensive HTML validator and syntax checker, ensuring your HTML documents are not only well-formatted but also syntactically correct and standards-compliant. The built-in HTML linter performs real-time validation, checking for common issues like unclosed tags, invalid attributes, malformed structure, and accessibility problems. When errors are detected, our HTML checker provides precise error messages with line numbers, making debugging effortless. This is particularly valuable when working with complex web pages, email templates, or content management systems where a single syntax error can break the entire page layout. The validation engine follows W3C HTML standards, ensuring compatibility with all modern web browsers and accessibility guidelines.
HTML Formatting Example
Try our HTML formatter with this sample web page code. The tool will automatically detect HTML syntax, format it with proper indentation, and validate the structure. You can modify the HTML or paste your own code to see the formatting in action.
HTML Formatter for Web Development
Our HTML formatter is specifically designed for modern web development workflows and best practices. It handles all common HTML use cases including responsive design, accessibility, and cross-browser compatibility.
Frontend Development
Essential for frontend developers working with HTML templates, components, and responsive web design.
- • Format HTML templates and components
- • Beautify email HTML templates
- • Validate responsive web pages
- • Format CMS exported HTML
- • Clean up legacy HTML code
- • Optimize HTML for performance
Content Management
Perfect for content creators and marketers who need to work with HTML content and email campaigns.
- • Format email marketing templates
- • Beautify blog post HTML
- • Validate landing page code
- • Format newsletter templates
- • Clean up imported content
- • Optimize HTML for SEO
Frequently Asked Questions (FAQ)
Our HTML Formatter and Validator works seamlessly on Windows, Mac, and Linux, across all modern browsers like Chrome, Firefox, Safari, and Edge.