Jenee

Punctuation Checker

Detect punctuation issues in Japanese text: consecutive periods, too many commas, unterminated long sentences, and spacing errors.

How to Use

  1. STEP 1
    Paste the text you want to check into the input area.
  2. STEP 2
    Issues are automatically highlighted and categorized as Error, Warning, or Info.
  3. STEP 3
    Review the issue list and revise your text accordingly.
  • Rule-based detection may occasionally flag contextually correct expressions as errors.
  • Poetry, scripts, and other stylized writing intentionally use unusual punctuation. Use your judgment.

Tips

1

If a sentence has 4+ commas, consider splitting it into multiple sentences.

2

Japanese style guides generally recommend ≤80–100 characters per sentence.

3

Use this tool for a final check before sending business emails or official documents.

FAQ

  • Q1

    Are '、' and '，' treated the same?

    Yes. Both are treated as Japanese commas and checked with the same rules.

  • Q2

    Can I check English text?

    This tool is designed for Japanese punctuation rules. Some rules may not apply to English text.

  • Q3

    What is a good comma count per sentence?

    Generally, 2–3 commas per sentence is considered readable. Four or more can make text feel run-on.

Feedback (Contact)