NLP Keyword Extractor
Extract important keywords and phrases from any text — single words, bi-grams, and tri-grams with relevance scores.
Paste text and click "Extract Keywords"
About NLP Keyword Extractor
Everything you need to know about this tool
Extract the most important keywords and phrases from any text using NLP-inspired analysis. The tool identifies single words, two-word phrases (bi-grams), and three-word phrases (tri-grams), scoring each by frequency and relevance. Perfect for content analysis, SEO research, and understanding topic focus.
Understanding what your content is about — from a search engine's perspective — requires knowing which keywords and phrases are most prominent. Our NLP Keyword Extractor analyzes your text and identifies the most significant terms at three levels.
Single words reveal your content's core topics and most-used terminology. Bi-grams (two-word phrases) capture important compound concepts like 'content marketing' or 'search engine'. Tri-grams (three-word phrases) identify specific, long-tail concepts like 'search engine optimization' or 'content creation process'.
Each extracted keyword gets a frequency count (how many times it appears) and a relevance score based on its prominence relative to the total content length. Higher relevance scores indicate terms that are more central to your content.
The tool uses intelligent stop word filtering to exclude common function words (the, a, is, etc.) and focus on meaningful content words. This gives you a clean, actionable list of your content's most important keywords — perfect for SEO analysis, content auditing, or understanding what topics a piece of content covers.
Use Cases
- Extract keywords from competitor content for SEO research
- Identify the main topics of any article or document
- Find keyword opportunities in existing content
- Analyze keyword focus and topical relevance
- Discover multi-word keyword phrases for targeting
- Audit content for keyword balance and coverage
Key Benefits
- Three keyword levels: single, bi-gram, tri-gram
- Frequency and relevance scoring for each keyword
- Intelligent stop word filtering
- Sorted by relevance for easy prioritization
- Works with content of any length
- Free, instant, completely private
How to Use NLP Keyword Extractor
Paste any text content into the input area.
The extractor automatically identifies keywords and phrases.
Review single words, bi-grams, and tri-grams sorted by relevance.
Use the extracted keywords for SEO optimization or content analysis.
Frequently Asked Questions
Quick answers to common questions about NLP Keyword Extractor
Three types: Single words (e.g., 'marketing'), bi-grams/two-word phrases (e.g., 'content marketing'), and tri-grams/three-word phrases (e.g., 'search engine optimization'). Each type captures different levels of semantic meaning.
Relevance score is based on keyword frequency relative to total content length, with weighting that favors multi-word phrases (bi-grams and tri-grams) since they carry more specific meaning.
Stop words are common function words like 'the', 'is', 'and', 'to', etc. that don't carry topical meaning. The tool filters these out to focus on meaningful content words.
Up to 15 single words, 10 bi-grams, and 5 tri-grams — all sorted by relevance score. Only keywords appearing 2+ times are included to ensure significance.
Absolutely! Extracted keywords are perfect for identifying your content's focus, finding keyword gaps, and ensuring your content covers the right topics for SEO.
Yes, completely free. No registration required, no usage limits.
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