About Word Frequency Counter

Rank words by frequency, stop-words filtered. Part of the DevTools Surf developer suite. Browse more tools in the Text / String collection.

Use Cases

• Analyze keyword density in blog posts and SEO content
• Audit codebases for naming patterns and terminology consistency
• Study writing style by comparing word distribution across documents
• Extract key themes from survey responses and user feedback

Tips

• Paste any text — articles, code, logs, or documents — to instantly see which words appear most often
• Common stop words (the, a, is, and…) are filtered by default so you see meaningful content words
• Results are ranked by count and include percentage of total words for quick analysis

Fun Facts

• Zipf's law predicts that the most frequent word in any natural language text appears roughly twice as often as the second most frequent, three times as often as the third, and so on.
• The word 'the' accounts for about 7% of all words in English text — making it the single most common word by a wide margin.
• Word frequency analysis was one of the first techniques used to crack substitution ciphers. During WWII, frequency analysis helped Bletchley Park cryptanalysts break Enigma-encrypted messages.

FAQ

Are stop words filtered?

Yes by default — common words (the, and, of, to, a) are excluded so the signal-to-noise ratio is better. Toggle off to include them.

Can I customize the stop-word list?

Yes — paste your own list (one word per line). Useful for domain-specific analysis where 'customer' or 'user' should be filtered.

Is it case-sensitive?

Case-insensitive by default. 'The' and 'the' are counted together. Toggle strict case if you want to distinguish 'Apple' (brand) from 'apple' (fruit).

What about bigrams or phrases?

This tool is word-level. For phrase frequency (bigrams, trigrams) use dedicated text-mining software — it's a different algorithm.