输入或粘贴文本即时统计：字符数、英文单词、中文字数、句子、段落、行数、字节数和预计阅读时长，还会列出高频英文词。中英混排按各自规则计数（汉字按字、英文按词），结果才准。Counts as you type: characters, English words, Chinese characters, sentences, paragraphs, lines, byte size and estimated reading time, plus your most frequent English words. Mixed text is counted properly — Chinese per character, English per word.
计数口径：总词数 = 英文单词数 + 中文字数（业内通行的中英混排口径）；阅读时长按中文约 400 字/分钟、英文约 200 词/分钟估算。文本只在浏览器里处理，不会上传。Counting rules: total words = English words + Chinese characters (the standard mixed-text convention). Reading time assumes ~400 Chinese chars/min and ~200 English words/min. Your text never leaves the browser.