How to use this text tool
- Paste or upload your text file.
- Choose the analysis or cleanup mode.
- Run the tool or keep live analysis enabled.
- Review the report, quality score, and frequency table.
- Copy or export the result as TXT, CSV, or JSON.
#37 · Counters Text Tool
Duplicate Sentence Counter
Use this Duplicate Sentence Counter to inspect duplicate sentences and repeated content, calculate frequency and density, review automatic quality notes, and export a clean report for writing, SEO, data cleanup, or localization checks.
Text Input
Live text analysischars
Recent History
No history yet.
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What this tool does
The result explains how much duplicate sentences and repeated content appears in the text, how concentrated it is, and whether the pattern suggests clean content or formatting issues.
Splits text into sentences, normalizes sentence text, groups duplicates, and calculates duplicate ratio.
Counts are calculated in the browser. The text is not sent to a server.
Example
Example: paste mixed content, run the tool, and compare the main count, density, frequency table, and automatic interpretation.
Use cases
- Localization and multilingual QA
- SEO content review
- Copied text cleanup
- Dataset inspection
- Writing quality analysis
Tips for better output
- Use plain text when possible for cleaner statistics.
- Check hidden Unicode characters before publishing.
- Compare density with your document purpose.
- Export CSV when you need a spreadsheet-ready report.
Processing details
Splits text into sentences, normalizes sentence text, groups duplicates, and calculates duplicate ratio. The tool also calculates base text metrics such as words, characters, sentences, paragraphs, and line count.
This is a deterministic text analysis utility. Language confidence and quality notes are practical heuristics, not certified linguistic classification.
FAQ
How do I find duplicate sentences in text?
Paste the text and run the tool. It groups exact duplicate sentences and reports the duplication ratio.
Can I remove repeated sentences automatically?
Yes. Remove Duplicates mode keeps the first occurrence and removes repeated sentence copies.
Does this detect near duplicate sentences?
Near-match mode uses normalized sentence comparison and simple similarity heuristics.
How does duplicate sentence count affect SEO?
Repeated sentences can lower perceived content quality and should be reviewed before publishing.
Can I export duplicate sentence groups?
Yes. Export the duplicate report as TXT, CSV, or JSON.
Related text tools
Duplicate Sentence Counter modules
| Module | What it checks |
|---|---|
| Main count | duplicate sentences and repeated content |
| Frequency analysis | Top characters, words, symbols, or sentence groups |
| Quality score | Heuristic score from density, repetition, or script consistency |
| Export report | TXT, CSV, and JSON export for QA workflows |
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