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Keyword Density & N-Gram Frequency Analyzer

Analyze content for 1-word, 2-word, and 3-word n-gram keyword densities, total word counts, stop-word filtering, and over-optimization alert thresholds in-browser.

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📊Keyword Density & N-Gram Frequency Analyzer Documentation & Guide

Social & SEO
The Keyword Density Analyzer evaluates text for 1-word, 2-word, and 3-word n-gram frequencies and density percentages with optional multilingual stop-word filtering, reading time estimates, and over-optimization warning flags.

📋How to Use This Tool

  1. Paste or Type Content: Input your article draft, blog post, or web page copy into the text area. Word, character, and sentence counts calculate instantly.
  2. Toggle Stop-Words Filter: Enable the stop-words filter to ignore common grammatical prepositions, conjunctions, and articles (e.g., the, and, is, in).
  3. Analyze 1-Word, 2-Word & 3-Word Phrases: Switch between unigrams, bigrams, and trigrams tabs to identify repeated multi-word keyphrases and semantic terms.
  4. Check Over-Optimization Flags: Review density percentages. Any non-branded phrase exceeding 3.5% density is highlighted to prevent keyword stuffing penalties.

⚙️Technical Specifications & Tokenization Architecture

Modern search engines employ natural language processing to assess topical relevance. Natural keyword distribution outperforms aggressive exact-match repetition.

• N-Gram Tokenizer: Generates continuous sequences of 1, 2, and 3 words using regex-based unicode word boundary segmentation.
• Multilingual Stop-Word Filtering: Built-in stop-word lexicons filter high-frequency functional words for cleaner topical analysis.
• Density Formula: Keyword Density = (Phrase Occurrences / Total Words) * 100 with 2-decimal precision.
• Readability Metrics: Calculates average reading time based on 225 words per minute speaking/reading velocity.
• Zero-Network Execution: Content analysis occurs entirely in browser memory; proprietary drafts are never transmitted to external servers.

Balancing keyword frequencies ensures your copy sounds natural to human readers while providing clear topical signals to search algorithms.

💡Practical Content Optimization Use Cases

  • Auditing long-form articles to ensure primary target keywords remain within recommended 1% to 2.5% density thresholds.
  • Identifying recurring two-word and three-word phrases to discover opportunities for semantic variation and LSI expansion.
  • Pre-publication quality checks for freelance content submissions to eliminate automated keyword stuffing.
100% Client-Side Privacy Guarantee:All calculations, text manipulation, cryptographic hashing, and media conversions execute exclusively within your local browser sandbox. Zero user inputs, financial amounts, credentials, or proprietary files are ever transmitted across networks or logged on external servers.
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