Free Keyword Extractor Tool - Extract Keywords from Text Online

Perfect For:

SEO Optimization

• Content analysis
• Meta tag creation
• Keyword research
• SEO audits

Content Creation

• Topic identification
• Article tagging
• Blog categorization
• Content planning

Research & Analysis

• Document analysis
• Theme extraction
• Text mining
• Data categorization

Marketing

• Campaign planning
• Competitor analysis
• Ad targeting
• Trend identification

What is Keyword Extraction?

Keyword extraction is the process of automatically identifying the most important words and phrases from a piece of text. These keywords represent the core topics, themes, and concepts within your content. This technique is a subset of Natural Language Processing (NLP) and is used in search engines, content management systems, and text analysis tools.

Our keyword extractor uses NLP algorithms to analyze your text, filtering out common words (stop words) and identifying terms that carry the most semantic weight. The result is a ranked list of keywords that accurately represent your content.

How Keyword Extraction Differs from Keyword Research

Keyword extraction analyzes existing content to find what topics it covers.Keyword research involves finding terms people search for to create new content. Both are valuable for SEO—extraction helps you understand your current content, while research guides new content creation.

Learn More About Keyword Strategy

• Google's SEO Starter Guide - Official guidelines on keyword usage
• Moz Beginner's Guide to SEO - Comprehensive keyword strategy guide
• Ahrefs Keyword Research Guide - Advanced keyword research techniques

How to Use Extracted Keywords

For SEO Optimization

• Add top keywords to your page title and meta description
• Include keywords naturally in headings (H1, H2, H3)
• Use keywords in image alt text and file names
• Create internal links using keyword-rich anchor text
• Check keyword density (aim for 1-2% occurrence)

For Content Strategy

• Identify content gaps by comparing extracted keywords
• Create topic clusters around related keywords
• Generate blog post ideas from keyword categories
• Improve content relevance by ensuring key topics are covered
• Tag and categorize content for better organization

Types of Keywords Extracted

Single Keywords

Individual words that represent core concepts. Examples: "marketing", "software", "business"

Keyphrases (2-3 words)

Multi-word terms that are more specific. Examples: "content marketing", "social media strategy"

Long-tail Keywords

Longer, more specific phrases. Examples: "how to improve website SEO", "best marketing tools"

Frequently Asked Questions

How does the keyword extractor work?

Our AI analyzes your text using natural language processing to identify the most important keywords and phrases. It considers factors like word frequency, semantic importance, and context. Common words (like "the", "is", "and") are filtered out, leaving only meaningful terms. Each keyword receives a relevance score (0-100%) and is categorized by topic.

What types of text can I analyze?

You can extract keywords from virtually any text content: blog posts, articles, web pages, research papers, product descriptions, marketing copy, social media posts, emails, reports, and business documents. The tool works best with at least 50 characters of text for meaningful results.

How are keywords ranked by relevance?

Keywords are ranked using multiple factors: frequency (how often the word appears), semantic weight (importance to the topic), position (words in titles/headings rank higher), and context (relationship to other important terms). The relevance percentage indicates how central each keyword is to the overall content meaning.

Can I use extracted keywords for SEO?

Yes. Extracted keywords help you understand what topics your content covers and ensure you're using important terms. Use high-relevance keywords in your meta title, description, headings, and throughout your content. This helps search engines understand your page's topic and can improve rankings for those terms.

What's the difference between keywords and keyphrases?

Keywords are single words (like "marketing"), while keyphrases are multi-word terms (like "content marketing strategy"). Keyphrases are often more specific and valuable for SEO because they have clearer intent. Our tool extracts both single keywords and multi-word phrases from your text.

How many keywords should I extract?

For most content, 5-10 keywords provide a good overview of the main topics. Extract more (20+) when analyzing longer documents or doing comprehensive content audits. For SEO purposes, focus on 3-5 primary keywords per page to maintain focus without keyword stuffing.

What are stop words and why are they filtered?

Stop words are common words that appear frequently but carry little meaning—words like "the", "is", "at", "which", and "on". They're filtered out because they don't help identify the actual topic of your content. Removing stop words allows the tool to focus on meaningful, topic-relevant terms.

Is the keyword extractor free to use?

Yes, this keyword extractor is completely free with no limits on usage. There's no registration required, no watermarks, and no hidden fees. You can extract keywords from as much text as you need without any cost.

Free Keyword Extractor - 100% Free

Text to Analyze

Extracted Keywords

AI-Powered Analysis

Relevance Ranking

Smart Categorization