Drop your raw markup below. Validate it, auto-format with proper indentation, copy the output — or open it live in a new tab.
The tool first checks whether the input can be parsed as HTML. If the input is empty or broken, it shows an error. If valid, it formats the markup with indentation and displays it in the output pane — or opens it in a new tab.
This tool processes pasted HTML and uploaded local HTML files entirely inside the browser. No data is sent to a server. If ads or analytics are added later, the live site should clearly disclose cookies, analytics, and any third-party ad technologies.
Users should only paste or upload code they are allowed to use. The site should not be used to host malicious scripts, deceptive content, or material that violates advertising or publishing platform rules.
Email: info@htmlformatters.com
An HTML formatter takes raw or minified HTML code and restructures it with proper indentation, line breaks, and consistent spacing — making it easier to read, debug, and maintain.
Yes — completely free, no account or login required. Paste your HTML or upload a file and click Format.
No. All formatting and validation happens entirely inside your browser. Your code is never uploaded to any server.
Yes. Click the Validate button to check for structural issues such as unclosed tags or broken markup before formatting.
You can paste any HTML snippet or full document directly into the editor, or upload a .html or .htm file from your computer.