Word Frequency Counter — Free Keyword Density Checker & Analyzer

Word Frequency Counter — Free Keyword Density Checker & Analyzer. Free word frequency counter and keyword density checker. See how often every word or 2–3 word phrase appears, filter stop words, and export the frequency list to CSV — 100% in your browser.

Our free word frequency counter ranks every word in your text by how often it appears and shows its share of the total — the keyword density that SEO writers and editors look for.

Paste an article, a landing page, a transcript or survey answers and the table updates as you type with each word's rank, occurrence count and percentage.

Switch to two- or three-word phrases to use it as a keyword density checker for long-tail keywords like "content marketing strategy", or as a word occurrence counter to find repeated words and phrases that make your writing feel monotonous.

Turn on exclude stop words to hide filler such as "the", "and" and "of" so the words that actually carry meaning rise to the top, set a minimum word length, or switch to case-sensitive counting to separate "Apple" from "apple".

Use the search box to check the density of one specific keyword, then copy the word frequency list as CSV or download it for Excel and Google Sheets.

The word frequency analyzer handles Unicode text — accented Latin, Cyrillic, and Chinese or Japanese without spaces — so it works for multilingual content too.

Counting happens locally in your browser, so unpublished drafts, client copy and research data are never uploaded. Share a link that restores your text and options, or load the sample to see how it works. Need totals instead of frequencies?

The Word Counter counts words, characters, sentences and paragraphs, and the Text Analyzer adds byte size, line counts and a readability score. To clean up a list of keywords first, try the List Converter or Text Formatter.

Frequently asked questions

How do I find the most frequent words in a text?

Paste your content into Input. The Results table ranks each word by count and shows its density, along with Total Words and Unique Words. Use the search box to find a specific word, and Copy CSV or Download CSV to export the list.

How is keyword density calculated?

Density is how often a word or phrase appears divided by the total number of words (or phrases of that length) in the text, shown as a percentage. For example, a word used 10 times in 500 words has a density of 2.0%.

Can I count 2-word and 3-word phrases?

Yes. Switch from Words to 2-word phrases or 3-word phrases to count repeated word pairs and triples, which is useful for checking long-tail keywords. When stop words are excluded, phrases that start or end with a stop word such as the or of are skipped.

What do Exclude stop words, Case sensitive and Min. word length do?

Exclude stop words (English) hides common words such as the, and or of. Case sensitive counts Apple and apple separately (it is off by default). Min. word length ignores words shorter than the number you set.

Why does the table show only 100 results?

The table shows the top 100 entries to stay fast on long texts. Download CSV exports the complete list with rank, word, count and percentage.

Is my text uploaded anywhere?

No. Word counting runs entirely in your browser, so the text you paste is never sent to a server.

How to use this online tool

Word Frequency Counter — Free Keyword Density Checker & Analyzer is designed for fast browser workflows when you need to format, validate, convert, decode, encode, generate, or inspect data without opening a heavy desktop app. Start with the input field or visible options, review the result, then copy or download the output for the next step.

Private processing in your browser

Word Frequency Counter — Free Keyword Density Checker & Analyzer keeps the normal processing step local in your browser. That is useful for code snippets, tokens, documents, configuration values, text samples, and other material that should not be sent to a remote service unless you explicitly choose to share it.

When this tool is useful

Use Word Frequency Counter — Free Keyword Density Checker & Analyzer for repeatable developer tasks, technical documentation, QA checks, quick conversions, debugging, content cleanup, and internal team workflows. The page focuses on clear inputs, immediate feedback, and output that is easy to reuse in code, reports, tickets, emails, or notes.

Practical tips

Before copying the final result, check important details such as spacing, casing, filenames, encoding, token structure, line breaks, or output format. Small checks prevent mistakes when the result is reused in source code, API requests, documentation, spreadsheets, or shared files.