为什么要在中英文之间加空格？

汉字是方块字，字母是比例字形，直接相邻会显得拥挤且不易断词。加一个空格后视觉上更清晰，这也是主流中文技术文档普遍采用的规范。

会破坏代码或网址吗？

不会。全角转换要求标点紧邻汉字才触发，像 admin@example.com 或 a=1,b=2 这类内容周围没有汉字，因此保持原样。

冒号后面跟数字时通常表示时间或比例，例如 9:30、16:9，这种情况保留半角更符合习惯。只有后面不是数字时才会转成全角。

左侧输入框的内容不会被修改，随时可以对照。也可以调整选项后重新排版，直到满意为止。

清理空行空格、中英文间加空格、统一标点。

排版格式化盘古

关于「文本自动排版」

它属于「文本处理」分类：中文排版、编码转换、统计与内容检查。

完全免费、无需注册；所有处理都在浏览器本地完成，文件不会上传到任何服务器。

相关关键词：文本自动排版、文本处理、排版、格式化、盘古、在线工具、免费

如何使用「文本自动排版」

常见问题

为什么要在中英文之间加空格？: 汉字是方块字，字母是比例字形，直接相邻会显得拥挤且不易断词。加一个空格后视觉上更清晰，这也是主流中文技术文档普遍采用的规范。
会破坏代码或网址吗？: 不会。全角转换要求标点紧邻汉字才触发，像 <code>admin@example.com</code> 或 <code>a=1,b=2</code> 这类内容周围没有汉字，因此保持原样。
为什么有的冒号没转成全角？: 冒号后面跟数字时通常表示时间或比例，例如 9:30、16:9，这种情况保留半角更符合习惯。只有后面不是数字时才会转成全角。
排版后能撤销吗？: 左侧输入框的内容不会被修改，随时可以对照。也可以调整选项后重新排版，直到满意为止。

Text Formatter (English)

Clean blank lines, space CJK/English, unify punctuation.

Belongs to “Text Tools”: Chinese typography, encoding conversion, statistics and content checks.

Space between CN/EN: adds a space between Chinese characters and letters/digits, greatly improving mixed-language readability.
Full-width punctuation: converts only when punctuation is next to Chinese; code, URLs and English sentences keep half-width punctuation.
Colons in time or ratios (e.g. <code>9:30</code>) stay half-width and are never mis-converted.
Merge extra spaces cleans up repeated spaces, trailing whitespace, and gaps around Chinese punctuation.
Indent paragraphs uses two full-width spaces, following standard Chinese typesetting.

Free, no sign-up; everything runs locally in your browser and files are never uploaded.

Keywords: Text Formatter, Text Tools, format, typography, online tool, free

Open the tool：Open the “Text Formatter” page — no sign-up and nothing to install.
Prepare the input：Prepare the content or file to process: paste text or drop a file onto the page (this tool belongs to “Text Tools”).
Provide the input：Paste your content into the input box or drop a file onto the page; you can also click “Sample” to try example data first.
Adjust options and run：Adjust the options if needed, then click the process / convert / generate button.
Get the result：Everything runs locally in your browser; copy or download the result — your files are never uploaded.

Why add space between CN/EN?: Chinese glyphs are square while Latin letters are proportional; placing them directly together looks cramped and hurts word breaking. A space improves clarity and is the norm in most Chinese technical docs.
Will it break code or URLs?: No. Full-width conversion only triggers when punctuation is adjacent to Chinese; content like <code>admin@example.com</code> or <code>a=1,b=2</code> has no Chinese nearby, so it stays intact.
Why do some colons stay half-width?: A colon followed by a digit usually means time or ratio (e.g. 9:30, 16:9), so keeping it half-width is more natural. Only colons not followed by a digit become full-width.
Can I undo formatting?: The left input box is never modified, so you can compare anytime. Adjust options and reformat until satisfied.

Simplified ⇄ Traditional — Convert between Simplified and Traditional Chinese variants.
Chinese to Pinyin — Convert Chinese to pinyin with tones, initials and polyphones.
Letter Case Converter — Upper/lower/title/camel/snake case conversion.
Circled Numbers & Letters — Convert digits and letters into circled Unicode chars.
Mars Text Converter — Convert between plain text and "Mars" (stylized) text.
Word & Char Counter — Count characters, Chinese chars, words, lines and reading time.
Dedupe & Sort Lines — Dedupe, sort, reverse and shuffle lines.
Text Diff — Compare two texts line by line with highlights.
RMB Amount in Words — Convert numeric amounts into Chinese capital letters.
Banned Word Checker — Built-in e-commerce/content sensitive-word list, customizable.
ID Card Info Extractor — Extract birthday, gender, region from an ID number and validate.
Smart To-Do List — Local to-do list with priority and filtering.