Online HTML Compression Tool - Quickly optimize HTML code, reduce page size and increase loading speed

This online HTML compression tool, based on the open-source html-minifier-terser engine, optimizes and compresses HTML files with one click. It automatically removes redundant whitespace, comments, and line breaks, significantly reducing page size and improving website loading speeds. Supporting common HTML5 syntax and page structure, it's ideal for developers optimizing code before project launch and can also help improve site performance and search engine friendliness through SEO.

Creative Inspiration

In actual website development, HTML files often contain a large amount of unused whitespace, comments, and line breaks. While these don't affect page display, they increase transmission size and slow loading times. To address this, this tool, based on html-minifier-terser, provides simple and efficient online HTML compression and optimization, helping developers quickly improve web page performance, user experience, and search engine indexing.

How to Use

1. Paste the HTML source code into the input box above.

2. Click "Compress Code" and the system will automatically process and output the optimized HTML code to the output box below.

3. Copy the compressed result and replace it in your website files. Test and confirm it is correct before going online.

Application Scenarios

• Pre-launch HTML page slimming, reducing resource size and improving loading speed.

• SEO optimization scenarios, improving web page performance and search engine friendliness.

• Fast compression and deployment on static web hosting platforms (such as GitHub Pages and Vercel).

• Mobile site optimization, reducing loading delays on slow networks.

Implementation Principle (Brief)

This tool is based on html-minifier-terser. While maintaining the page structure and functionality, it automatically performs the following:

• Removes redundant spaces, line breaks, and indents;

• Deletes development-stage comments;

• Collapses whitespace between some tags;

• Maintains compatibility with HTML5 and common browsers.

FQA

1. Will compressing HTML affect page display?

   No. The tool only removes redundant content and does not change the page rendering effect.

2. Does it support HTML5 compression?

   Yes, the tool is fully compatible with HTML5 standard syntax and common tags.

3. How much file size can be saved after compression?

   Depending on the original code structure, this can generally reduce page size by 10%–40%.

4. How does SEO optimization help?

   Compressed HTML speeds up page loading, improves user experience, and is more search engine-friendly for indexing and ranking.

5. Is large file compression supported?

   Yes, but it's recommended to process large files in segments to ensure compression efficiency and browser performance.

6. Do I need to keep the uncompressed files?

   It is recommended to retain the source files for subsequent maintenance and secondary development, and only deploy the compressed version online.