Word Frequency Counter

Analyze word frequency, density percentages, and keyword repetition across your copy to improve SEO optimization and writing clarity.

Summary:A word frequency counter calculates how often each word appears in a passage, displaying occurrence counts and keyword density percentages to help writers avoid overuse and optimize copy.
WordCountDensity
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Copy this code snippet to add the Word Frequency Counter to your blog or website for free. It adjusts dynamically to mobile and desktop screens.

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How to Use Word Frequency Counter

The Word Frequency Counter is a free, premium web utility designed to simplify your calculation tasks. It operates completely in your web browser, ensuring your private inputs are never transmitted over the internet or logged on any external servers. To make the most of this online tool, follow these detailed, step-by-step instructions: 1. Paste your blog post, essay, or text copy into the input area. 2. Select whether to ignore common stop words like "the", "is", and "and". 3. Analyze the generated frequency table listing words by count. 4. Check the percentage keyword density column to optimize search visibility. Rest assured that all computations execute instantly on your device. This makes the utility exceptionally secure, responsive, and easy to use across both mobile and desktop screens. Keep this page bookmarked for any future text calculations! In addition, you do not need to install any external apps, sign up for an account, or download any software packages. Simply open the page and input your text documents and word settings numbers to get immediate answers. This user-friendly setup is perfect for quick daily references, providing immediate utility.

Word Frequency Counter Formula / How It Works

Behind the scenes, this Word Frequency Counter runs high-performance client-side Javascript code in your web browser. When you input values into the fields, the calculation engine processes the data using the standard math logic: Extracts words using regex, maps them into a key-value counter, and sorts results by counts.. Specifically, it normalizes casing, extracts individual words using regex, maps them to a count object, and sorts them by frequency density. Because the processing happens locally on your device rather than on a remote cloud server, latency is reduced to zero milliseconds. This browser-based execution is the most secure method for online calculations, preserving your complete data privacy while providing instant results.

Formula:Extracts words using regex, maps them into a key-value counter, and sorts results by counts.
Example Calculation:

For example, let's look at the sentence "write clean code and write code fast" evaluated by the tool. By entering these values into the tool, you will get a list showing "write" (2 times, 25%), "code" (2 times, 25%), "clean" (1 time, 12.5%), "fast" (1 time, 12.5%) instantly.

Frequently Asked Questions

Word Frequency Counter is a free, instant web tool from HelloTools designed to help you analyze and evaluate keyword density analysis. It executes calculations locally inside your browser for complete speed and security.

Our Word Frequency Counter is highly accurate, utilizing standard industry formulas and double-precision IEEE-754 math. However, for formal audit, tax, or legal calculations, we suggest verifying results with a certified professional.

Yes, this Word Frequency Counter is 100% free with no hidden charges, premium features, signups, or software downloads. You can run unlimited computations instantly without ever creating an account.

Absolutely! The Word Frequency Counter page is designed with a mobile-first responsive layout that adjusts perfectly to iPhones, Android devices, tablets, and desktop computers.

You can calculate keyword density analysis instantly by entering your values in the fields at the top of this page. The tool processes your inputs automatically and displays detailed results immediately.

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