Self Plagiarism & Originality Checker
Detect repeated phrases, duplicate sentences, and overused expressions within your own document – no external source needed. Get an originality score and highlight redundant content.
How it works (self‑contained)
- Paste your text into the box – no external source needed.
- Choose the minimum phrase length (words) to detect repeated sequences.
- Click Analyze Originality – the tool finds all repeated word n‑grams (phrases) within the same document.
- An Originality Score is calculated based on the proportion of unique vs. repeated text.
- Repeated phrases are listed and highlighted in the preview (can be toggled off).
- This helps identify unintentional repetition, self‑plagiarism, or overused expressions.
- All processing is client‑side – your text never leaves your browser.
100% private – your data stays on your device.