Developer

HTML Minifier

Shrink HTML to its smallest safe form: comments stripped, whitespace collapsed, and blank lines removed — without touching the content of <pre>, <textarea>, <script>, or <style>.

工具摘要

此工具接收结构化输入，在浏览器中返回确定性输出，无需上传到服务器。

工具名称: HTML Minifier
输入意图: 提供需要转换、校验或分析的原始内容。
输出意图: 获得可直接复制、复用或排错的规范化输出。
示例输入: <!DOCTYPE html> <html>  <body> <p> hello </p> </body> </html>
示例输出: <!DOCTYPE html><html><body><p> hello </p></body></html>

Input HTMLDrop file

Options

Remove commentsStrip  blocks (keeps IE conditionals).Collapse whitespaceRemove extra spaces, tabs, and newlines.Preserve line breaksKeep one newline per line — easier to diff.Remove empty attributesDrop attributes like class="" or id="".

Original250 B

Minified176 B

Saved74 B

Reduction29.6%

Content of <pre>, <textarea>, <script>, and <style> is preserved verbatim.

Minified HTMLRead-only

<!DOCTYPE html><html lang="en"><head><meta charset="utf-8" /><title> Hello World </title></head><body><h1>Hello, world!</h1><p>This text has extra whitespace.</p></body></html>

工具介绍

Shrink HTML to its smallest safe form: comments stripped, whitespace collapsed, and blank lines removed — without touching the content of <pre>, <textarea>, <script>, or <style>.

工具概览

A minifier reduces the bytes a browser has to download by removing characters that do not affect rendering. Comments, runs of whitespace, and newlines between tags are all safe to strip in most documents. This tool walks your HTML, sets aside the contents of preserved tags (<pre>, <textarea>, <script>, <style>) so they survive intact, then collapses whitespace in the rest. Toggle each option to match your stack — keep IE conditional comments, preserve line breaks for readable diffs, or drop empty class="" attributes. Everything runs locally in your browser; nothing is uploaded.

使用场景

Trim bytes off email templates, transactional HTML, and AMP fragments before sending.
Pre-process server-rendered HTML for cache-friendly delivery on edge networks.
Strip developer comments and indentation from snippets before pasting into a CMS.

输入/输出示例

输入意图

<!DOCTYPE html>
<html>
  <!-- a comment -->
  <body>
    <p>  hello  </p>
  </body>
</html>

输出意图

<!DOCTYPE html><html><body><p> hello </p></body></html>

常见问题

Will it break <pre> or <script> contents?+

No. The minifier sets those blocks aside before collapsing whitespace, then restores them verbatim, so indentation, code, and styles stay intact.

Does it remove IE conditional comments?+

No. Comments that start with <!--[if are kept so legacy IE conditional logic continues to work.

Is the output safe to deploy to production?+

For most templates, yes — the rules used are conservative. Always run a smoke test of the rendered page after a major minification change.

Is my HTML uploaded?+

No. Minification runs entirely in your browser; nothing leaves your device.

Share this tool

X Facebook LinkedIn WhatsApp Reddit Telegram Email

探索更多工具

在下方的 Developer 分类中发现相关工具。

浏览全部 Developer