Review your writing against a bundled list of common English phrases and check repeated word sequences in your own text. This tool does not search the web, publications or academic databases and cannot certify that a passage is original.
Paste 50–5,000 characters, choose a sensitivity level and review the highlighted matches. The check runs in your browser. Verify quotations and original sources separately before drawing conclusions.
Your text will appear here with matching passages highlighted.
No matching phrases found.
Paste 50–5,000 characters into the text box. Review the highlighted passages in context after checking.
Choose Low for exact matches, Medium for the standard check or High to include partial matches against the bundled phrase list.
Click Check text. The browser compares word sequences with its bundled list of common phrases and looks for repetitions in your text.
Review the match percentage, highlighted passages and available wording suggestions. Export a text report or share the result. A match is a prompt for review, not proof of plagiarism.
Use the local check without signing in or paying a fee.
Use the tool from a phone, tablet or desktop browser.
Run the check in your browser and review its results.
Review common phrases and repeated wording in the text you provide.
Review the current result in this browser and export a copy when needed.
Open the page and use the check without creating an account.
The browser compares your text with a bundled list of common English phrases and looks for repeated word sequences. Matching passages are highlighted for review. This is a local pattern check, not a search of websites, publications or academic databases.
This tool is useful for these common needs and users.
Quick answers to common questions about Plagiarism Checker and how to use the tool effectively.
The browser compares word sequences with a bundled list of common English phrases and checks for repeated wording. It highlights the matches found by this method; it does not search the web or academic databases.
Low checks exact matches, Medium is the standard setting and High includes partial phrase matches. Review the passages rather than treating the score as a verdict.
Enter 50–5,000 characters for each check. The page limits the text box to 5,000 characters.
The percentage describes the passages matched by this local algorithm. It is not a verified plagiarism percentage or a guarantee of originality.
Yes. After running a check, click Export report to download a text file with the score, matched phrases and available wording suggestions.
The text check runs locally in JavaScript. Exporting saves a report; Share copies the tool URL without including your text or result.
The tool applies its rules to the available input. Review results used for important or professional decisions.
Limits depend on the data type, browser and device. Large inputs may need to be split for reliable processing.
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Rewrite with KitoTool AI or on-device processing in six modes. Compare both versions before copying or exporting.
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Take online notes for free with Notepad, with no login needed. Write and edit text, autosave on your device, share a snapshot and back up notes for later.
Join hard-wrapped lines in pasted text while preserving blank-line paragraph breaks, or make one line.
Remove duplicate lines from pasted text or TXT/CSV files and sort the retained lines by text, number or length.
Count characters with and without whitespace, word groups, lines and UTF-8 bytes as you type; check a custom character limit.
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