Duplicate Sentence Finder

Detect repeated sentence groups locally, see occurrence counts and sentence positions, and copy a compact editing report without semantic or plagiarism claims.

Case-sensitive matching

Collapse whitespace

Minimum normalized length

0Sentences scanned

0Duplicate groups

0Extra repeated copies

0%Units in duplicate groups

This is exact normalized matching, not plagiarism detection or semantic near-duplicate detection. Text stays in this browser.

Paste → measure → inspect → export

Keep the focused metric for the task at hand, then use the shared dashboard to cross-check counts, lexical diversity, reading time and frequent terms without uploading the text.

How to use this Duplicate Sentence Finder

Paste text, choose whether case and whitespace differences should matter, then review exact repeated sentence groups and their sentence positions.

What the result means

Sentence boundaries use the browser’s sentence segmenter when available with a simple fallback. Results are exact normalized duplicates, not semantic similarity or plagiarism analysis.