📖 Description
1. Why Do You Need an HTML Formatter?
High-quality code is not just for execution, but also for reading and maintenance:
- Restore Readability: Convert one-line compressed code back into a hierarchical structure with clear indentation, making nested relationships easy to understand.
- Check Tag Closure: Automatically identify unclosed tags like
<div>, <span>, etc. Spot logical gaps at a glance through the alignment after formatting.
- Unify Team Standards: Before code merging, standardize indentation style (spaces or Tabs) and eliminate unnecessary blank lines.
- Clean Up Junk Code: Quickly remove comments or redundant spaces from HTML, performing code "slimming" for production environments.
2. Core Features Analysis
This site's tool integrates an industrial-grade parsing engine, providing comprehensive code processing capabilities:
A. Smart Indentation & Alignment (Prettify)
- Multi-level Parsing: Deeply recognizes DOM tree structure, ensuring each level of tags receives perfect indentation.
- Attribute Auto-Wrapping: For tags with numerous attributes (like complex
<img> or <input>), supports setting attribute wrapping logic to prevent horizontal code overflow.
B. One-Click Code Minification (Minify)
- Extreme Performance: Removes line breaks, spaces, and unnecessary comments from HTML, significantly reducing file size and improving webpage load speed.
C. Syntax Highlighting & Line Numbers
- Immersive Reading: The editor has a built-in highlighting engine that distinguishes tag names, attributes, attribute values, and inline CSS/JS. Combined with line number display, it makes code review easier.
D. Advanced Customization Options
- Indentation Character: Freely choose 2 spaces, 4 spaces, or Tab indentation.
- Preserve/Delete Comments: Supports one-click removal of HTML comments to protect backend logic from exposure.
- Script & Style Processing: Can simultaneously beautify
<script> and <style> code blocks nested within HTML.
3. Operation Process Overview
- Input Code: Paste the HTML source code to be processed into the left/top editor.
- Set Parameters: Select indentation size and whether to minify in the toolbar.
- Click Execute:
- Click "Format": Instantly obtain clean, standardized code.
- Click "Minify": Get extremely compact production-ready code.
- Export Result: Click "Copy Code" or "Download File" to save the result.
4. Formatting Effect Comparison
| Status |
Code Example |
| Original/Minified Code |
<div><ul><li>Home</li><li>About</li></ul></div> |
| After Formatting |
<div>
<ul>
<li>Home</li>
<li>About</li>
</ul>
</div> |
5. Why Choose This Site's HTML Assistant?
- Local Processing, Zero Risk:** Your source code is NOT uploaded to any server.** All formatting logic is completed locally in your browser, ensuring absolute security for your commercial project code.
- Hybrid Parsing Capability: Perfectly supports HTML5 specifications and accurately recognizes custom tags from frontend frameworks like Vue, React (JSX).
- Undisturbed Experience: Clean interface, focused on the efficient flow of "input-process-output," with no pop-up ads.
- Completely Free: No login required, no character limits, supports instant processing of very large HTML files.