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HTML Formatter / Beautifier

HTML Formatter / Beautifier takes messy, minified, or poorly indented HTML and reformats it into clean, readable code with consistent indentation and structure. It's built for frontend developers, designers, and anyone who needs to quickly audit or share HTML without installing tools or running a local environment.

Configuration

Input

HTML Input

Formatting

Indent Size (spaces)

Indent Character

Wrap Attributes

Preserve Existing Blank LinesKeep Inline Elements Inline

Max Line Length (characters)

Display

Output Panel Theme

Accent / Brand Color

Output Font Size

Show Line Numbers

Output Panel Heading

How to Use

1. Paste your raw or minified HTML into the input textarea and configure indentation size and formatting options. 2. Adjust style preferences such as indent character, attribute wrapping, and whether to preserve inline elements. 3. Preview the beautified HTML output rendered live in the output panel. 4. Copy the formatted HTML to your clipboard or download it as an .html file for immediate use.

Why Use This Tool?

Hand-formatting HTML is error-prone and slow — this tool processes an entire file in milliseconds with zero dependencies, no installs, and no account required. It enforces consistent indentation rules across teams and makes minified third-party code auditable in seconds. Unlike Prettier or Beautify running locally, this works from any browser on any device.

Frequently Asked Questions

What is the HTML Formatter / Beautifier?

It's a browser-based tool that reformats raw, minified, or inconsistently indented HTML into clean, readable code using your chosen indentation style and formatting rules — no plugins or installs needed.

Can I use this to format HTML copied from a live website?

Yes. If you use browser DevTools to copy the outer HTML of an element or the full page source, paste it directly into the input field. The formatter handles deeply nested structures, inline event handlers, data attributes, and mixed content. For very large files (over 500KB), processing may take a moment depending on your device.

Is it free?

Yes — the HTML Formatter / Beautifier is completely free with no signup required. Built by the CanvasBuilder.co team.