単語頻度カウンター

テキスト内の単語頻度をカウント。上位の単語、割合、棒グラフを表示。長さでフィルタリング、一般的な単語を除外、結果のエクスポートが可能です。

すべてのテキスト分析はブラウザで処理されます。データはサーバーに送信されません。

How to Use This Tool

  1. 1

    Enter your text

    Paste or type the text you want to analyze in the input area.

  2. 2

    Adjust filters

    Toggle case sensitivity, exclude common English stop words, or set a minimum word length.

  3. 3

    View results

    See word frequency ranked by count or alphabetically, with percentage bars for visual comparison.

  4. 4

    Export results

    Click "Copy as TSV" to copy the results as tab-separated values for use in spreadsheets.

Frequently Asked Questions

What is word frequency analysis?
Word frequency analysis counts how often each word appears in a text. It helps identify key topics, writing patterns, and commonly used terms.
What are "common words" (stop words)?
Common words (stop words) are frequently used words like "the", "is", "and", "to" that carry little meaning on their own. Excluding them helps highlight more meaningful content words.
What is lexical diversity?
Lexical diversity is the ratio of unique words to total words, expressed as a percentage. Higher diversity means more varied vocabulary. Academic writing typically scores 60-80%.
Is my data secure?
Yes. All text analysis happens entirely in your browser. No text is sent to any server.