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<!doctype html>
<html lang="zh-CN">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, viewport-fit=cover" />
<title>HTML 格式化 - WebUtils</title>
<!-- SEO Meta Tags -->
<meta name="description" content="HTML 代码格式化、压缩和美化" />
<meta name="keywords" content="html 格式化 美化 压缩 beautify minify format" />
<meta name="author" content="WebUtils" />
<meta name="robots" content="index, follow" />
<link rel="canonical" href="https://tools.realtime-ai.chat/tools/dev/html-formatter.html" />
<!-- Open Graph -->
<meta property="og:title" content="HTML 格式化 - WebUtils" />
<meta property="og:description" content="HTML 代码格式化、压缩和美化" />
<meta property="og:type" content="website" />
<meta property="og:url" content="https://tools.realtime-ai.chat/tools/dev/html-formatter.html" />
<meta property="og:site_name" content="WebUtils" />
<meta property="og:locale" content="zh_CN" />
<meta property="og:image" content="https://tools.realtime-ai.chat/social-preview.png" />
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<meta property="og:image:height" content="640" />
<meta property="og:image:type" content="image/png" />
<!-- Twitter Card -->
<meta name="twitter:card" content="summary" />
<meta name="twitter:title" content="HTML 格式化 - WebUtils" />
<meta name="twitter:description" content="HTML 代码格式化、压缩和美化" />
<meta name="twitter:image" content="https://tools.realtime-ai.chat/social-preview.png" />
<!-- Favicon & PWA -->
<link rel="icon" type="image/svg+xml" href="../../favicon.svg" />
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<link rel="icon" type="image/png" sizes="16x16" href="../../favicon-16x16.png" />
<link rel="apple-touch-icon" href="../../apple-touch-icon.png" />
<meta name="theme-color" content="#0a0a0f" />
<link rel="manifest" href="../../manifest.json" />
<!-- Structured Data -->
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "BreadcrumbList",
"itemListElement": [
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"@type": "ListItem",
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"name": "首页",
"item": "https://tools.realtime-ai.chat/"
},
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"position": 2,
"name": "开发工具",
"item": "https://tools.realtime-ai.chat/tools/dev/index.html"
},
{
"@type": "ListItem",
"position": 3,
"name": "HTML 格式化",
"item": "https://tools.realtime-ai.chat/tools/dev/html-formatter.html"
}
]
}
</script>
<script type="application/ld+json">
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"@type": "SoftwareApplication",
"name": "HTML 格式化 - WebUtils",
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</script>
<!-- Global & Tool Styles -->
<link rel="preconnect" href="https://fonts.googleapis.com" />
<link rel="preconnect" href="https://fonts.gstatic.com" crossorigin />
<link
href="https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap"
rel="stylesheet"
/>
<link rel="stylesheet" href="../../assets/css/tool-base.css" />
<link href="https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;600;700&family=Space+Grotesk:wght@400;500;600;700&display=swap" rel="stylesheet">
<style>
/* CSS 变量兼容垫片 (修复 d03c9548 改名遗留) */
:root {
/* color-* 家族 → 新设计系统 */
--color-bg-deep: var(--bg-deep, #0a0a0f);
--color-bg-surface: var(--bg-surface, #12121a);
--color-bg-subtle: var(--bg-card, #1a1a24);
--color-bg-card: var(--bg-card, #1a1a24);
--color-bg-input: var(--bg-input, #0e0e14);
--color-text-primary: var(--text-primary, #e8e8ed);
--color-text-secondary: var(--text-secondary, #8888a0);
--color-text-muted: var(--text-muted, #55556a);
--color-border-default: var(--border-subtle, #2a2a3a);
--color-border-subtle: var(--border-subtle, #2a2a3a);
--color-border-strong: var(--border-strong, #3a3a4a);
--color-accent-primary: var(--accent-cyan, #00f5d4);
--color-accent-secondary: var(--accent-magenta, #f72585);
--color-accent-tertiary: var(--accent-blue, #4cc9f0);
--color-accent-cyan: var(--accent-cyan, #00f5d4);
--color-accent-purple: var(--accent-purple, #8b5cf6);
--color-accent-pink: var(--accent-magenta, #f72585);
--color-accent-orange: #ff9f1c;
--color-success: var(--accent-green, #10b981);
--color-warning: var(--accent-yellow, #fbbf24);
--color-error: var(--accent-red, #f43f5e);
--color-danger: var(--accent-red, #f43f5e);
--color-info: var(--accent-blue, #4cc9f0);
--color-safe: var(--accent-green, #10b981);
/* 玻璃拟态 */
--glass-bg: rgba(26, 26, 36, 0.72);
--glass-border: rgba(255, 255, 255, 0.08);
--glass-blur: 24px;
--glass-saturate: 180%;
--glass-radius: 16px;
--glass-border-width: 1px;
--glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.5);
/* 间距尺度 */
--space-1: 4px;
--space-2: 8px;
--space-3: 12px;
--space-4: 16px;
--space-5: 20px;
--space-6: 24px;
--space-8: 32px;
--spacing-sm: 8px;
--spacing-md: 16px;
--spacing-lg: 24px;
--spacing-card: 16px;
/* 阴影 */
--shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
--shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
--shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
--shadow-glow: 0 0 20px rgba(0, 245, 212, 0.15);
--card-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
/* 辉光 */
--glow-cyan: 0 0 20px rgba(0, 245, 212, 0.4);
--glow-purple: 0 0 20px rgba(139, 92, 246, 0.4);
--glow-green: 0 0 20px rgba(16, 185, 129, 0.4);
--glow-red: 0 0 20px rgba(244, 63, 94, 0.4);
--glow-magenta: 0 0 20px rgba(247, 37, 133, 0.4);
--accent-glow: 0 0 20px rgba(0, 245, 212, 0.4);
/* 过渡 */
--transition-fast: 150ms ease;
--transition-normal: 250ms ease;
--transition: 200ms ease;
/* 圆角 */
--radius-full: 9999px;
--radius-xl: 24px;
--border-radius: 8px;
/* 布局 */
--nav-height: 56px;
--container-max: 1400px;
--container-bg: var(--bg-card, #1a1a24);
--safe-area-top: env(safe-area-inset-top, 0px);
--safe-area-bottom: env(safe-area-inset-bottom, 0px);
/* 单名旧约定 */
--bg-color: var(--bg-deep, #0a0a0f);
--bg-secondary: var(--bg-surface, #12121a);
--bg-tertiary: var(--bg-card, #1a1a24);
--bg-elevated: var(--bg-card-hover, #22222e);
--bg-hover: var(--bg-card-hover, #22222e);
--bg-card-hover: #22222e;
--bg-gradient: linear-gradient(135deg, #0a0a0f 0%, #12121a 100%);
--primary-gradient: linear-gradient(135deg, #00f5d4 0%, #4cc9f0 100%);
--text-color: var(--text-primary, #e8e8ed);
--primary-color: var(--accent-cyan, #00f5d4);
--primary-focus: rgba(0, 245, 212, 0.25);
--secondary-color: var(--accent-magenta, #f72585);
--tertiary-color: var(--text-muted, #55556a);
--accent-color: var(--accent-cyan, #00f5d4);
--accent-hover: #2dffe2;
--accent-light: rgba(0, 245, 212, 0.15);
--accent-pink: var(--accent-magenta, #f72585);
--accent-orange: #ff9f1c;
--accent-gold: #ffd166;
--accent-brown: #a0522d;
--success-color: var(--accent-green, #10b981);
--good-color: var(--accent-green, #10b981);
--warning-color: var(--accent-yellow, #fbbf24);
--error-color: var(--accent-red, #f43f5e);
--danger-color: var(--accent-red, #f43f5e);
--info-color: var(--accent-blue, #4cc9f0);
--muted-color: var(--text-muted, #55556a);
--muted-border-color: var(--border-subtle, #2a2a3a);
--hover-color: var(--accent-cyan, #00f5d4);
--border-default: var(--border-subtle, #2a2a3a);
--border-focus: var(--accent-cyan, #00f5d4);
--border-accent: var(--accent-cyan, #00f5d4);
--card-background-color: var(--bg-card, #1a1a24);
--code-background-color: var(--bg-input, #0e0e14);
/* Pico CSS 框架默认 */
--pico-background-color: var(--bg-deep, #0a0a0f);
--pico-color: var(--text-primary, #e8e8ed);
--pico-muted-color: var(--text-muted, #55556a);
--pico-muted-border-color: var(--border-subtle, #2a2a3a);
--pico-muted-background: var(--bg-surface, #12121a);
--pico-card-background-color: var(--bg-card, #1a1a24);
--pico-code-background-color: var(--bg-input, #0e0e14);
--pico-primary: var(--accent-cyan, #00f5d4);
--pico-primary-background: var(--accent-cyan, #00f5d4);
--pico-primary-inverse: #0a0a0f;
--pico-primary-focus: rgba(0, 245, 212, 0.25);
--pico-primary-rgb: 0, 245, 212;
--pico-secondary: var(--text-secondary, #8888a0);
--pico-secondary-background: var(--bg-card, #1a1a24);
--pico-border-radius: 8px;
--pico-contrast: var(--text-primary, #e8e8ed);
--pico-contrast-background: var(--bg-card-hover, #22222e);
--pico-del-color: var(--accent-red, #f43f5e);
--pico-ins-color: var(--accent-green, #10b981);
--pico-form-element-border-color: var(--border-strong, #3a3a4a);
--pico-form-element-background-color: var(--bg-input, #0e0e14);
}
/* 浅色主题覆盖：glass/shadow/glow 等主题敏感变量 */
[data-theme="light"] {
/* 玻璃拟态 — 浅色版（半透明白） */
--glass-bg: rgba(255, 255, 255, 0.78);
--glass-border: rgba(0, 0, 0, 0.06);
--glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
/* 阴影 — 浅色版（更淡） */
--shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.06);
--shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
--shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.12);
--shadow-glow: 0 0 20px rgba(0, 184, 148, 0.12);
--card-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
/* 辉光 — 浅色版（透明度降低） */
--glow-cyan: 0 0 16px rgba(0, 184, 148, 0.18);
--glow-purple: 0 0 16px rgba(139, 92, 246, 0.18);
--glow-green: 0 0 16px rgba(16, 185, 129, 0.18);
--glow-red: 0 0 16px rgba(244, 63, 94, 0.18);
--glow-magenta: 0 0 16px rgba(247, 37, 133, 0.18);
--accent-glow: 0 0 16px rgba(0, 184, 148, 0.18);
/* 渐变 — 浅色版 */
--bg-gradient: linear-gradient(135deg, #f8fafc 0%, #fff 100%);
/* hover/elevated 替换为浅色调 */
--bg-card-hover: #f1f5f9;
--bg-elevated: #fff;
--bg-hover: #f1f5f9;
--accent-light: rgba(0, 184, 148, 0.12);
--accent-hover: #00d4aa;
/* Pico 浅色覆盖（默认 Pico 行为） */
--pico-primary-inverse: #fff;
--pico-contrast-background: #f1f5f9;
}
:root {
--bg-deep: #0a0a0f;
--bg-surface: #12121a;
--bg-card: #1a1a24;
--bg-input: #0e0e14;
--text-primary: #e8e8ed;
--text-secondary: #8888a0;
--text-muted: #55556a;
--border-subtle: #2a2a3a;
--border-strong: #3a3a4a;
--accent-cyan: #00f5d4;
--accent-magenta: #f72585;
--accent-green: #10b981;
--accent-red: #f43f5e;
--accent-yellow: #fbbf24;
--accent-blue: #4cc9f0;
--accent-purple: #7b2cbf;
--radius-sm: 4px;
--radius-md: 8px;
--radius-lg: 12px;
--font-sans: "Space Grotesk", -apple-system, blinkmacsystemfont, "Segoe UI", roboto, sans-serif;
--font-mono: "JetBrains Mono", "Courier New", monospace;
--shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}
[data-theme="light"] {
--bg-deep: #fafafa;
--bg-surface: #fff;
--bg-card: #fff;
--bg-input: #f5f5f5;
--text-primary: #1a1a1a;
--text-secondary: #666;
--text-muted: #999;
--border-subtle: #e5e5e5;
--border-strong: #d5d5d5;
--accent-cyan: #00d4b8;
--accent-magenta: #e63975;
--shadow: 0 2px 8px rgba(0, 0, 0, 0.08);
}
:root {
--bg: #f8f9fa;
--card-bg: #fff;
--text: #212529;
--color-text-muted: #6c757d;
--border: #dee2e6;
--primary: #0d6efd;
--primary-hover: #0b5ed7;
--success: #198754;
--danger: #dc3545;
--shadow: 0 2px 8px rgb(0 0 0 / 8%);
--radius: 8px;
}
.theme-toggle {
position: fixed;
top: 1rem;
right: 1rem;
width: 40px;
height: 40px;
border-radius: 50%;
border: 1px solid var(--border-subtle);
background: var(--bg-card);
cursor: pointer;
font-size: 1.2rem;
z-index: 100;
transition: all 0.2s;
}
.theme-toggle:hover {
transform: scale(1.1);
}
* {
box-sizing: border-box;
}
body {
font-family:
system-ui,
-apple-system,
"Segoe UI",
Roboto,
sans-serif;
background: var(--bg-deep);
color: var(--text-primary);
margin: 0;
padding: 24px;
min-height: 100vh;
}
.container {
max-width: 1200px;
margin: 0 auto;
}
.back-link {
display: inline-block;
margin-bottom: 16px;
color: var(--accent-cyan);
text-decoration: none;
font-size: 0.9rem;
}
.back-link:hover {
text-decoration: underline;
}
h1 {
font-size: 1.75rem;
margin: 0 0 8px;
}
.desc {
color: var(--text-muted);
margin: 0 0 24px;
font-size: 0.95rem;
}
.card {
background: var(--bg-card);
border: 1px solid var(--border-subtle);
border-radius: var(--radius-md);
padding: 20px;
box-shadow: var(--shadow);
margin-bottom: 20px;
}
.btn-row {
display: flex;
gap: 12px;
flex-wrap: wrap;
margin-bottom: 16px;
}
button {
padding: 10px 16px;
font-size: 0.95rem;
border: 1px solid var(--border-subtle);
border-radius: var(--radius-md);
background: var(--bg-card);
color: var(--text-primary);
cursor: pointer;
transition: all 0.2s;
}
button:hover {
border-color: var(--accent-cyan);
color: var(--accent-cyan);
}
button.primary {
background: var(--accent-cyan);
border-color: var(--accent-cyan);
color: #fff;
}
button.primary:hover {
background: var(--accent-cyan);
border-color: var(--accent-cyan);
color: #fff;
}
.options {
display: flex;
gap: 16px;
flex-wrap: wrap;
margin-bottom: 16px;
align-items: center;
}
.options label {
display: flex;
align-items: center;
gap: 6px;
font-size: 0.9rem;
color: var(--text-muted);
}
.options select,
.options input[type="number"] {
padding: 6px 10px;
border: 1px solid var(--border-subtle);
border-radius: var(--radius-md);
background: var(--bg-card);
color: var(--text-primary);
font-size: 0.9rem;
}
.options input[type="number"] {
width: 60px;
}
.panels {
display: grid;
grid-template-columns: 1fr 1fr;
gap: 20px;
}
@media (width <= 768px) {
.panels {
grid-template-columns: 1fr;
}
}
.panel label {
display: block;
font-weight: 600;
margin-bottom: 8px;
font-size: 0.95rem;
}
textarea {
width: 100%;
min-height: 400px;
padding: 12px;
font-family: ui-monospace, SFMono-Regular, "SF Mono", Menlo, monospace;
font-size: 0.85rem;
border: 1px solid var(--border-subtle);
border-radius: var(--radius-md);
background: var(--bg-card);
color: var(--text-primary);
resize: vertical;
line-height: 1.5;
tab-size: 2;
}
textarea:focus {
outline: none;
border-color: var(--accent-cyan);
box-shadow: 0 0 0 3px rgb(13 110 253 / 15%);
}
.status {
font-size: 0.85rem;
margin-top: 8px;
min-height: 20px;
}
.status.success {
color: var(--accent-green);
}
.status.error {
color: var(--accent-red);
}
.stats {
display: flex;
gap: 20px;
margin-top: 12px;
font-size: 0.85rem;
color: var(--text-muted);
}
footer {
text-align: center;
margin-top: 32px;
padding-top: 16px;
border-top: 1px solid var(--border-subtle);
color: var(--text-muted);
font-size: 0.85rem;
}
footer a {
color: var(--accent-cyan);
text-decoration: none;
}
footer a:hover {
text-decoration: underline;
}
.breadcrumb {
background: rgba(255, 255, 255, 0.95);
padding: 8px 15px;
border-radius: 20px;
box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
font-size: 0.85rem;
}
.breadcrumb a {
color: #667eea;
text-decoration: none;
}
.breadcrumb a:hover {
text-decoration: underline;
}
.breadcrumb span {
color: #999;
margin: 0 5px;
}
</style>
</head>
<body>
<div class="tool-main" role="main">
<div class="container">
<button class="theme-toggle" onclick="toggleTheme()" title="切换主题">☀️</button>
<h1>HTML 格式化</h1>
<p class="desc">HTML 代码格式化、压缩和美化，纯本地处理</p>
<div class="card">
<div class="btn-row">
<button id="btnPaste">粘贴</button>
<button id="btnFormat" class="primary">格式化</button>
<button id="btnMinify" class="primary">压缩</button>
<button id="btnCopy">复制输出</button>
<button id="btnShare">分享链接</button>
<button id="btnClear">清空</button>
</div>
<div class="options">
<label>
缩进:
<select id="indentType">
<option value="space">空格</option>
<option value="tab">Tab</option>
</select>
</label>
<label>
缩进大小:
<input type="number" id="indentSize" value="2" min="1" max="8">
</label>
<label>
<input type="checkbox" id="wrapAttributes">
属性换行
</label>
<label>
<input type="checkbox" id="preserveNewlines" checked="">
保留空行
</label>
</div>
<div class="panels">
<div class="panel">
<label for="input">输入 HTML</label>
<textarea id="input" placeholder="粘贴 HTML 代码..."></textarea>
</div>
<div class="panel">
<label for="output">输出</label>
<textarea id="output" readonly="" placeholder="格式化结果将显示在这里..."></textarea>
</div>
</div>
<div id="status" class="status"></div>
<div class="stats">
<span id="inputStats">输入: 0 字符</span>
<span id="outputStats">输出: 0 字符</span>
<span id="ratio"></span>
</div>
</div>
<footer>
<a href="https://github.com/chicogong/html-tools" target="_blank" rel="noreferrer">GitHub</a>
· 纯前端工具 · 无服务器 ·
<a href="../../index.html">WebUtils</a>
</footer>
</div>
</div>
<script>
const inputEl = document.getElementById("input");
const outputEl = document.getElementById("output");
const statusEl = document.getElementById("status");
const inputStatsEl = document.getElementById("inputStats");
const outputStatsEl = document.getElementById("outputStats");
const ratioEl = document.getElementById("ratio");
const indentTypeEl = document.getElementById("indentType");
const indentSizeEl = document.getElementById("indentSize");
const wrapAttributesEl = document.getElementById("wrapAttributes");
const preserveNewlinesEl = document.getElementById("preserveNewlines");
const LS_KEY = "html_formatter_v1";
// HTML 格式化函数
window.formatHtml = function (html, options) {
const indentChar = options.indentChar || " ";
const wrapAttributes = options.wrapAttributes || false;
const preserveNewlines = options.preserveNewlines !== false;
// 移除多余空白但保留必要的结构
html = html.replace(/>\s+</g, "><");
// 自闭合标签
const voidTags = [
"area",
"base",
"br",
"col",
"embed",
"hr",
"img",
"input",
"link",
"meta",
"param",
"source",
"track",
"wbr"
];
// 不格式化内容的标签
const preformattedTags = ["pre", "code", "script", "style", "textarea"];
let result = "";
let indent = 0;
let inPreformatted = false;
let preformattedTag = "";
// 解析 HTML
const tagRegex =
/<\/?([a-zA-Z][a-zA-Z0-9-]*)((?:\s+[^>]*)?)\s*\/?>|<!--[\s\S]*?-->|<!DOCTYPE[^>]*>|[^<]+/gi;
let match;
while ((match = tagRegex.exec(html)) !== null) {
const fullMatch = match[0];
const tagName = match[1] ? match[1].toLowerCase() : null;
const attrs = match[2] || "";
// 处理注释
if (fullMatch.startsWith("<!--")) {
result += indentChar.repeat(indent) + fullMatch + "\n";
continue;
}
// 处理 DOCTYPE
if (fullMatch.startsWith("<!DOCTYPE")) {
result += fullMatch + "\n";
continue;
}
// 处理文本节点
if (!tagName) {
const text = fullMatch.trim();
if (text) {
if (inPreformatted) {
result += fullMatch;
} else {
result += indentChar.repeat(indent) + text + "\n";
}
} else if (preserveNewlines && fullMatch.includes("\n")) {
result += "\n";
}
continue;
}
// 检查是否在预格式化标签内
if (inPreformatted) {
result += fullMatch;
if (fullMatch.startsWith("</") && tagName === preformattedTag) {
inPreformatted = false;
preformattedTag = "";
result += "\n";
}
continue;
}
// 检查是否进入预格式化标签
if (preformattedTags.includes(tagName) && !fullMatch.startsWith("</")) {
result += indentChar.repeat(indent) + fullMatch;
if (!fullMatch.endsWith("/>")) {
inPreformatted = true;
preformattedTag = tagName;
} else {
result += "\n";
}
continue;
}
// 处理闭合标签
if (fullMatch.startsWith("</")) {
indent = Math.max(0, indent - 1);
result += indentChar.repeat(indent) + fullMatch + "\n";
continue;
}
// 处理开始标签
let formattedTag = "<" + tagName;
// 处理属性
if (attrs.trim()) {
const attrRegex =
/([a-zA-Z_:][-a-zA-Z0-9_:.]*)\s*(?:=\s*(?:"([^"]*)"|'([^']*)'|([^\s>]+)))?/g;
const attrList = [];
let attrMatch;
while ((attrMatch = attrRegex.exec(attrs)) !== null) {
const attrName = attrMatch[1];
const attrValue = attrMatch[2] || attrMatch[3] || attrMatch[4];
if (attrValue !== undefined) {
attrList.push(attrName + '="' + attrValue + '"');
} else {
attrList.push(attrName);
}
}
if (wrapAttributes && attrList.length > 1) {
formattedTag +=
"\n" +
attrList
.map(function (a) {
return indentChar.repeat(indent + 1) + a;
})
.join("\n");
} else {
formattedTag += " " + attrList.join(" ");
}
}
// 检查是否自闭合
if (voidTags.includes(tagName) || fullMatch.endsWith("/>")) {
formattedTag += fullMatch.endsWith("/>") ? " />" : ">";
result += indentChar.repeat(indent) + formattedTag + "\n";
} else {
formattedTag += ">";
result += indentChar.repeat(indent) + formattedTag + "\n";
indent++;
}
}
// 清理多余空行
result = result.replace(/\n{3,}/g, "\n\n");
return result.trim();
};
// HTML 压缩函数
function minifyHtml(html) {
// 保存 pre, script, style, textarea 内容
const preserved = [];
const preserveTags = ["pre", "script", "style", "textarea"];
preserveTags.forEach(function (tag) {
const regex = new RegExp("(<" + tag + "[^>]*>)([\\s\\S]*?)(<\\/" + tag + ">)", "gi");
html = html.replace(regex, function (match, open, content, close) {
preserved.push({ open: open, content: content, close: close });
return "__PRESERVED_" + (preserved.length - 1) + "__";
});
});
// 移除注释 (保留条件注释)
html = html.replace(/<!--(?!\[if)[\s\S]*?-->/g, "");
// 移除多余空白
html = html.replace(/\s+/g, " ");
// 移除标签之间的空白
html = html.replace(/>\s+</g, "><");
// 移除标签内的多余空白
html = html.replace(/\s+>/g, ">");
html = html.replace(/<\s+/g, "<");
// 移除属性值周围的多余空白
html = html.replace(/\s*=\s*/g, "=");
// 恢复保存的内容
preserved.forEach(function (item, index) {
html = html.replace("__PRESERVED_" + index + "__", item.open + item.content + item.close);
});
return html.trim();
}
function getIndentChar() {
const type = indentTypeEl.value;
const size = parseInt(indentSizeEl.value, 10) || 2;
return type === "tab" ? "\t" : " ".repeat(size);
}
function format() {
const html = inputEl.value;
if (!html.trim()) {
showStatus("请输入 HTML 代码", "error");
return;
}
try {
const formatted = formatHtml(html, {
indentChar: getIndentChar(),
wrapAttributes: wrapAttributesEl.checked,
preserveNewlines: preserveNewlinesEl.checked
});
outputEl.value = formatted;
updateStats();
showStatus("格式化成功", "success");
} catch (e) {
showStatus("格式化失败: " + e.message, "error");
}
}
function minify() {
const html = inputEl.value;
if (!html.trim()) {
showStatus("请输入 HTML 代码", "error");
return;
}
try {
const minified = minifyHtml(html);
outputEl.value = minified;
updateStats();
showStatus("压缩成功", "success");
} catch (e) {
showStatus("压缩失败: " + e.message, "error");
}
}
function updateStats() {
const inputLen = inputEl.value.length;
const outputLen = outputEl.value.length;
inputStatsEl.textContent = "输入: " + inputLen.toLocaleString() + " 字符";
outputStatsEl.textContent = "输出: " + outputLen.toLocaleString() + " 字符";
if (outputLen && inputLen) {
const ratio = ((outputLen / inputLen) * 100).toFixed(1);
ratioEl.textContent = "比例: " + ratio + "%";
} else {
ratioEl.textContent = "";
}
}
function showStatus(msg, type) {
statusEl.textContent = msg;
statusEl.className = "status " + (type || "");
}
// URL state
window.loadFromUrl = function () {
const hash = location.hash.slice(1);
if (!hash) return false;
try {
inputEl.value = decodeURIComponent(atob(hash));
return true;
} catch (e) {
return false;
}
};
function saveToUrl() {
try {
const encoded = btoa(encodeURIComponent(inputEl.value));
history.replaceState(null, "", "#" + encoded);
} catch (e) {
// 忽略编码错误
}
}
// localStorage
function loadFromStorage() {
const saved = localStorage.getItem(LS_KEY);
if (saved) {
inputEl.value = saved;
}
}
function saveToStorage() {
localStorage.setItem(LS_KEY, inputEl.value);
}
// 事件绑定
document.getElementById("btnPaste").onclick = async function () {
try {
const text = await navigator.clipboard.readText();
inputEl.value = text;
saveToStorage();
saveToUrl();
updateStats();
showStatus("已粘贴", "success");
} catch (e) {
showStatus("无法访问剪贴板", "error");
}
};
document.getElementById("btnFormat").onclick = format;
document.getElementById("btnMinify").onclick = minify;
document.getElementById("btnCopy").onclick = async function () {
if (!outputEl.value) {
showStatus("没有可复制的内容", "error");
return;
}
try {
await navigator.clipboard.writeText(outputEl.value);
showStatus("已复制到剪贴板", "success");
} catch (e) {
showStatus("复制失败", "error");
}
};
document.getElementById("btnShare").onclick = async function () {
saveToUrl();
try {
await navigator.clipboard.writeText(location.href);
showStatus("分享链接已复制", "success");
} catch (e) {
showStatus("复制失败", "error");
}
};
document.getElementById("btnClear").onclick = function () {
inputEl.value = "";
outputEl.value = "";
localStorage.removeItem(LS_KEY);
history.replaceState(null, "", location.pathname);
updateStats();
showStatus("已清空", "success");
};
inputEl.addEventListener("input", function () {
saveToStorage();
saveToUrl();
updateStats();
});
// 初始化
if (!loadFromUrl()) {
loadFromStorage();
}
updateStats();
window.toggleTheme = function () {
var html = document.documentElement;
var btn = document.querySelector(".theme-toggle");
var next = html.getAttribute("data-theme") === "dark" ? "light" : "dark";
html.setAttribute("data-theme", next);
btn.textContent = next === "dark" ? "🌙" : "☀️";
localStorage.setItem("theme", next);
};
(function () {
var saved = localStorage.getItem("theme");
if (saved) {