Free online word frequency statistics and visualization - Sort/filter/word cloud/export CSV
英文以空格和标点自然分词，中文没有空格分隔。本工具对中文采用N-gram（2-4字组合）+高频词匹配的方式分词，对英文按空格分词。自动检测模式下会根据文本内容选择合适的分词策略。
停用词是文本中频繁出现但无实际意义的词，如中文的"的、是、在、了"，英文的"the、is、at、on"。过滤停用词后，词频结果更能反映文本的核心内容和关键词。
完全不会！所有分析都在浏览器本地完成，文本数据绝不上传到任何服务器，安全可靠。
Word Frequency Analyzer has no usage limits — it's free and unlimited. Since processing is done client-side, speed depends on your device. For very large files, we recommend processing in batches for the best experience.
Yes. Word Frequency Analyzer is fully responsive and works on phones, tablets, and desktops. The interface adapts automatically to your screen size.
No. Word Frequency Analyzer is a web-based tool — just open it in your browser and start using it. No downloads, plugins, or extensions required.
Absolutely. All processing happens locally in your browser. No data is sent to any server, so there's zero risk of data leaks. Your information stays completely under your control.
UTF-8 is the primary encoding. Most tools also support ASCII, UTF-16, and other common encodings.