Word Counter は何をしますか？
Word Counter はブラウザ上でデータを調査するツールで、結果と制限を明確に示します。 検証済みの機能： Locale-aware word segmentation, Grapheme count, UTF-8 bytes, Reading time at 200 WPM.
Choose the metric that matches the constraint
Use grapheme count for visible interface limits, UTF-8 bytes for storage and transport limits, and the destination tokenizer for contractual word limits.
使い方
- Paste or type text in the input panel.
- Read the live word, character, byte, sentence, line, paragraph, and time metrics.
- Set an optional character limit to see the exact remaining or excess count.
実際の入出力例
Compare characters and bytes
入力
你好出力
Characters: 2
UTF-8 bytes: 6Each Chinese grapheme is one visible character and uses three UTF-8 bytes.
一般的なエラーと対処
| 症状 | 原因 | 対処 |
|---|---|---|
| The word total differs from another editor. | The tools use different tokenization and punctuation rules. | Use the destination platform count for an enforced limit. |
| Byte count exceeds character count. | UTF-8 encodes many characters with more than one byte. | Use byte metrics for storage or API payload limits and graphemes for visible-character limits. |
Tokenization rules differ
このツール固有の制限： Languages do not all separate words with spaces, and platforms can use different tokenizers. Validate against the destination platform when a count is contractual.
標準と実装の参考資料
- MDN — Intl.Segmenter (opens in a new tab)Documents locale-sensitive text segmentation.
- Encoding Standard — UTF-8 (opens in a new tab)Defines the UTF-8 byte encoding used by the page.
Word Counter — FAQ
How are words identified?
Intl.Segmenter is used when supported, with a Unicode-aware fallback.
Do characters include spaces?
Yes. A separate metric removes whitespace.
Why are UTF-8 bytes different?
Many non-ASCII characters and emoji use multiple encoded bytes.
更新内容
実質的な更新： Word Counter: Added locale-aware words, grapheme clusters, UTF-8 bytes, sentences, lines, paragraphs, reading time, repeated words, and character-limit tracking.