免费在线关键词提取器。粘贴您的文本，即时提取热门关键词、分析词频并可视化关键词密度。完美适用于SEO、内容写作和研究。100%纯前端。
Our Keyword Extractor is a free online tool that analyzes your text and extracts the most important keywords based on frequency. It's perfect for SEO analysis, content optimization, blog writing, and research. Simply paste your text, adjust the analysis options, and instantly see your top keywords with frequency counts and density percentages. All processing happens directly in your browser — your data never leaves your device.
A keyword extractor analyzes text and identifies the most frequently occurring words or phrases. It helps with SEO optimization, content analysis, and understanding the main topics of a document.
Stop words are common words like "the", "and", "is", "of" that appear frequently but carry little meaning. Our filter removes over 150 common English stop words automatically. You can also add your own custom stop words.
Absolutely! All processing happens entirely in your browser. Your text is never sent to any server, stored, or logged. NeoToolkit respects your privacy completely.
Keyword density is the percentage of times a keyword appears in your text compared to the total word count. It's calculated as: (keyword frequency / total words) × 100. This metric is useful for SEO analysis.