🧹 按类型清除文字（中文/英文/数字/符号）Remove Characters by Type
一键清除或只保留文本中的某类字符：中文汉字、英文字母、数字、中英文标点、空格、Emoji 等，可多选组合，适合清洗数据、提取号码或纯中文内容。Remove — or keep only — certain kinds of characters: Chinese characters, Latin letters, digits, Chinese/English punctuation, spaces, emoji and more, in any combination. Handy for cleaning data or extracting numbers or pure Chinese text.
使用说明与常见问题How-to & FAQ
「按类型清除文字（中文/英文/数字/符号）」是什么？What is the Remove Characters by Type tool?
一键清除或只保留文本中的某类字符：中文汉字、英文字母、数字、中英文标点、空格、Emoji 等，可多选组合，适合清洗数据、提取号码或纯中文内容。Remove — or keep only — certain kinds of characters: Chinese characters, Latin letters, digits, Chinese/English punctuation, spaces, emoji and more, in any combination. Handy for cleaning data or extracting numbers or pure Chinese text.
如何使用「按类型清除文字（中文/英文/数字/符号）」？How do I use the Remove Characters by Type?
粘贴文本，勾选要处理的字符类型，选择「删除所选」或「只保留所选」，结果实时显示。例如只勾「数字」并选「只保留」即可提取所有数字。换行默认保留。Paste text, tick the character types, choose Remove selected or Keep only selected, and the result updates live. E.g. tick Digits with Keep only to extract every number. Line breaks are kept by default.
全角字母和数字也会被识别吗？Are full-width letters and digits included?
会。「英文字母」包括全角字母（Ａ–Ｚ），「数字」包括全角数字（０–９），「中文标点」包括全角符号和中文引号、省略号、破折号等。Yes. Letters include full-width Ａ–Ｚ, digits include full-width ０–９, and Chinese punctuation includes full-width symbols, Chinese quotes, ellipses and dashes.
生僻字会被当作汉字吗？Are rare characters treated as Chinese?
会。除了常用的基本区，还包括扩展 A 区和扩展 B–F 等增补区汉字。Yes. Besides the basic block it covers Extension A and the supplementary Extensions B–F.
「按类型清除文字（中文/英文/数字/符号）」免费吗？数据会上传吗？Is the Remove Characters by Type free? Is my data uploaded?
「按类型清除文字（中文/英文/数字/符号）」完全免费，无需注册或安装，手机和电脑都能用；所有处理都在你的浏览器本地完成，输入的内容和文件不会上传到服务器。The Remove Characters by Type is completely free with no sign-up or install and works on phones and desktops; everything runs locally in your browser and nothing you enter is uploaded.