Word Frequency Counter
Analyze text and count how often each word appears, sorted by frequency.
What Is a Word Frequency Counter?
A word frequency counter is a text analysis tool that reads a body of text and tallies how many times each unique word appears. It produces a ranked list showing the most-used words, their raw counts, and their percentage of the total word count. Writers, researchers, students, SEO professionals, and data scientists all rely on frequency analysis to reveal patterns, highlight dominant themes, detect keyword density, or simply satisfy curiosity about language usage.
This tool processes everything entirely in your browser — no text is ever sent to a server — making it safe for confidential or proprietary content.
Chinese, Japanese and Korean text is supported, but be clear about what you get: there is no CJK word-segmentation dictionary in a browser, so CJK is counted one character at a time, not one word at a time. Latin text is counted one word at a time. Mixed text lists both, and the line above the results table states how many tokens came from each.
How to Use This Tool
- Paste or type any text into the input box above.
- Choose whether to exclude common English stop-words (the, is, a, and, etc.) and/or numbers. The stop-word list is English only — it does not filter Chinese function words.
- Set how many top words you want displayed (default: 30).
- Click Analyze Text.
- Sort the table by clicking any column header, filter with the search box, copy the table, or export it as a CSV file.
Common Use Cases
- SEO & content marketing — Check keyword density and ensure natural keyword distribution across your articles.
- Academic research — Identify recurring terms in qualitative data or literature for thematic analysis.
- Writing & editing — Spot overused words and improve vocabulary variety.
- Data science & NLP — Quick prototype frequency analysis before building a full pipeline.
- Language learning — Find the most important vocabulary words in a foreign-language text.
- Legal & compliance — Highlight how often key terms appear in contracts or policy documents.
Frequently Asked Questions
Does this tool save or store my text?
No. All processing happens locally in your browser using JavaScript. Your text never leaves your device and is never transmitted to any server.
What are stop-words?
Stop-words are extremely common English words — such as "the", "is", "at", "which", and "on" — that appear in almost every text but carry little analytical meaning. Removing them lets you focus on the substantive vocabulary of your content.
Does this work with Chinese, Japanese or Korean?
Yes, with one honest caveat: CJK text is counted per character, not per word. A browser has no CJK segmentation dictionary, so this tool will not split 人工智慧 into a single term — it reports each character separately. That is still useful for spotting repeated characters and overall usage, but it is character frequency, not word frequency. Before 2026-07-26 the tokenizer deleted every non-Latin character, so pasting Chinese returned "No countable words found" — that bug is fixed.
Is the analysis case-sensitive?
No. The tool automatically converts all text to lowercase before counting, so "Apple", "apple", and "APPLE" are all counted as the same word.
How large a text can I analyze?
There is no hard limit enforced by the tool. In practice, modern browsers handle several hundred thousand words instantly. Very large texts (millions of words) may take a second or two.
What does the CSV export contain?
The exported CSV includes all currently displayed rows with four columns: Rank, Word, Count, and Percentage. If you have applied a filter, only the filtered results are exported. You can open it directly in Excel, Google Sheets, or any spreadsheet app.
Can I sort the results?
Yes. Click any column header (Rank, Word, Count, or % of Total) to sort by that column. Click the same header again to reverse the sort order. The default sort is by count, highest first.