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Unique Word Counter – Measure Your Vocabulary Richness

How many distinct words do you use? Our free online Unique Word Counter helps you analyze the diversity of your vocabulary. It counts total words, unique words, and calculates a vocabulary richness percentage – a key metric for writers, students, SEO experts, and researchers. All processing happens locally in your browser, so your text remains private and secure. No sign‑ups, no limits, no hidden costs.

🧠 Core Analysis

Feature Description
Total Words Count of every word in the text.
Unique Words Number of distinct words (duplicates counted once).
Vocabulary Richness Ratio of unique words to total words, displayed as a percentage. Higher values indicate richer vocabulary.

🛠️ Advanced Options

Option Description
Case Sensitive Treats “Word” and “word” as different words.
Ignore Numbers Excludes numeric tokens (e.g., “123”) from the analysis.

📊 Interactive Controls

Button Action
Analyze Manually triggers analysis (auto‑analyze on every change).
Copy Results Copies the unique word list as CSV to clipboard.
Export CSV Downloads the unique word list as a .csv file.
Sample Loads a demo text to test the tool.
Clear Empties the text area and resets results.

🎨 Premium Design

  • Fully Responsive – Works on all devices (mobile, tablet, desktop).
  • Modern Color Scheme – Uses indigo and purple gradients (neutral, not brand colors).
  • Toast Notifications – Instant feedback for actions.
  • Sortable Table – Click column headers to reorder by word or frequency.

🔒 Privacy & Security

  • 100% Browser‑Based – All processing happens locally. No data is sent to any server.
  • No API Keys – Completely free, no hidden costs.
  • No Limits – Analyze any amount of text without restrictions.

💡 Use Cases

  • Writers & Editors – Assess vocabulary variety and avoid repetition.
  • SEO Specialists – Identify unique keywords in content.
  • Students – Improve academic writing by measuring word diversity.
  • Researchers – Analyze distinct terms in large texts.

Why Choose Our Unique Word Counter?

Simple word counters only tell you how many words you’ve used. Our tool goes further: it reveals the number of distinct words, giving you insight into your vocabulary richness. A high vocabulary richness percentage often correlates with engaging, well‑varied writing. Whether you’re a student aiming to avoid repetition in essays, a writer polishing a novel, or an SEO analyst ensuring keyword diversity, this tool provides the metrics you need.

You can customize the analysis with case sensitivity – important for distinguishing proper nouns – or ignore numbers if you’re only interested in lexical words. The results are displayed in a sortable table (click the column headers to reorder by word or frequency) and can be exported as CSV for further analysis. All of this happens on your device, so your text never leaves your computer. No sign‑ups, no ads, no limits.

How to Use the Unique Word Counter

  1. Paste or type your text into the input area.
  2. Select options as needed: case sensitivity, ignore numbers.
  3. Click “Analyze” (or simply let the tool auto‑analyze as you type).
  4. View the results – total words, unique words, and vocabulary richness percentage. The unique word list shows each distinct word and its frequency.
  5. Copy or export the unique word list as CSV for use in spreadsheets or other tools.

🛠️ More Free Tools You May Need

Explore our complete collection of free, browser‑based utilities:

🌟 Our Brands & Network

We are dedicated to providing free, high‑quality online utilities. Our trusted brands include:

  • OnlineFreeConverters – Your go‑to hub for fast, secure converters and analyzers.
  • AI Tools Hub – Cutting‑edge AI utilities for writers, developers, and marketers.
  • PrivacyFirst Apps – Tools that respect your data and never store or share it.

Frequently Asked Questions

What is vocabulary richness?

Vocabulary richness is the ratio of unique words to total words, expressed as a percentage. For example, if you have 100 total words and 40 unique words, your vocabulary richness is 40%. Higher percentages generally indicate a more varied vocabulary.

Does the tool count numbers as words?

By default, numeric tokens like “123” are treated as words. You can enable the “Ignore Numbers” option to exclude them from the analysis, focusing only on alphabetic words.

How does case sensitivity affect the count?

When case‑sensitive mode is ON, “Apple” and “apple” are counted as distinct words. When OFF, they are merged. Use this to preserve proper nouns or when case variation matters.

Can I export the unique word list?

Yes. Click “Export CSV” to download a CSV file containing each unique word and its frequency. This file can be opened in Excel, Google Sheets, or any spreadsheet software.

Is my text safe?

Absolutely. All processing occurs locally in your browser. We never upload, store, or share your text. Your privacy is fully protected.

Understanding Vocabulary Richness in Different Contexts

Vocabulary richness is a valuable metric across many fields:

  • Academic Writing: Professors often look for a varied vocabulary to demonstrate command of language. Our tool helps you avoid repeating the same words excessively.
  • Creative Writing: Novelists and poets use word diversity to keep prose engaging. A high richness score can indicate a well‑crafted piece.
  • SEO & Marketing: Search engines favor content with natural language variation. Our unique word counter helps you identify overused keywords and diversify your copy.
  • Language Learning: Students can track their progress by measuring the number of unique words they can produce in a given text.

Whether you’re polishing a blog post, analyzing a transcript, or preparing a research paper, the Unique Word Counter gives you instant, actionable feedback. Try it now and see how you can improve your writing style.

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