Free Plagiarism Checker
Check your writing for potential text matches before you submit or publish it. The UnAIMyText Plagiarism Checker helps you review similarity, identify passages that may need citations, and take a closer look at your work's originality.
- Online plagiarism checking
- Review potentially matching text
- Useful for essays, articles, and reports
Paste your text below to get started.
Check Your Text for Similarities
Enter the text you want to review and examine any matches or potential originality concerns returned by the checker.
Original Writing Deserves a Closer Look
When you write an essay, article, or report, it's easy to overlook a sentence that's too close to a source or a quotation that needs a citation. A plagiarism checker can help you find passages worth reviewing before your work reaches its audience.
UnAIMyText is designed to help you examine your text and make more informed editing decisions. Review possible matches in context, check that sources are credited properly, and make sure quoted or paraphrased material is handled appropriately.
Find potential text matches
Identify passages that may overlap with published sources, with the matching source shown next to each one.
Review citations and quotations
Check whether borrowed ideas, direct quotations, and paraphrased material have been attributed appropriately.
Improve academic writing
Use the results as an opportunity to revisit your sources, strengthen your paraphrasing, and improve your references.
Review before sharing
Give your work another check before submitting an assignment, publishing an article, or sending a report.
Check Your Work in Three Steps
- 1
Paste your writing
Enter the essay, article, or other text you'd like to review, or upload a PDF, Word, or .txt file. Keep within the 3,000-word limit per check.
- 2
Run the check
Start the analysis and wait for the results, which can take up to 2 minutes. You'll get a similarity score and any matching sources.
- 3
Review and revise
Examine flagged passages, compare them with the matching sources, and correct citations or rewrite passages as appropriate.
Similarity Is a Signal, Not a Verdict
A similarity score represents how much of a document may match material identified by a checker. It doesn't automatically tell you whether plagiarism has occurred.
For example, a passage may match because it contains a properly cited quotation, a common phrase, a reference, or text that genuinely needs attribution. Conversely, a low score does not guarantee that every sentence is original.
The important step is to review the matched text in context and determine whether the source has been acknowledged correctly.
How to interpret potential matches
Quoted material
Confirm that direct quotations are clearly marked and cited according to the required style.
Paraphrased ideas
Make sure the wording reflects your own understanding and that borrowed ideas are attributed to their sources.
References and common phrases
Not every match indicates a problem. Examine the passage and the reason for the overlap before making changes.
A Useful Review for Different Kinds of Writing
Students
Review essays, research papers, and assignments to catch passages that may need better citations or clearer paraphrasing.
Researchers and educators
Examine written material for possible overlap and encourage responsible source attribution.
Writers and publishers
Review articles, website copy, and other content before publication to identify potential text overlaps.
Similarity and AI Detection Are Different
A plagiarism checker looks for text that may overlap with other material. An AI checker estimates whether writing shows patterns associated with AI-generated text. Neither result, by itself, proves how a document was created or whether an academic integrity rule was broken.
| Tool | Main purpose |
|---|---|
| Plagiarism CheckerThis page | Review potential overlap with other text |
| AI Checker | Estimate whether writing may be AI-generated |
| Grammar Checker | Find writing errors and improve clarity |
For a thorough review, choose the tool that addresses your concern and interpret the results alongside your own judgment and any applicable academic or workplace rules.
Explore all writing tools:
Frequently Asked Questions About the Plagiarism Checker
Everything you need to know about checking your text with UnAIMyText.
1What is the UnAIMyText Plagiarism Checker?
It's a free writing tool that compares your text against published sources to help you review potential plagiarism. You get a similarity score, the sources your text matches, and the overlapping passages side by side.
2Is the Plagiarism Checker free?
Yes. Each check covers up to 3,000 words and doesn't require an account.
3How does a plagiarism checker work?
It compares your text against the sources available to it and identifies passages that overlap. Each match shows the source, how much of your text it covers, and whether it's an exact or a partial (reworded) match. Coverage depends on the sources the checker can search, and a check can take up to 2 minutes.
4Can it check an entire essay?
Yes, if it's between 6 and 3,000 words (up to 60,000 characters). Paste it in or upload a PDF, Word (.docx), or .txt file up to 10MB. For longer documents, use the word counter and check the text in sections.
5What does a similarity percentage mean?
It's the share of your text that matched the sources checked; the originality score is the rest. A similarity percentage is not the same as a percentage of proven plagiarism.
6Does a high similarity score always mean plagiarism?
No. Properly cited quotations, bibliographies, common phrases, and other legitimate overlaps can contribute to similarity. Review individual matches before drawing conclusions.
7Does a low similarity score guarantee original writing?
No. A checker can't access every source, and it may miss some copied or closely paraphrased material. If some sources couldn't be reached during a check, the report says so and the scores cover only the sources analyzed.
8Can I use it to check a school assignment?
Yes, as a preliminary review if your institution permits it. Follow your school's academic integrity policies and any instructions about approved tools.
9Does it compare text against Turnitin's database?
No. UnAIMyText doesn't have access to Turnitin's proprietary database, so its results won't match a Turnitin report. Use it as a review before you submit, not as a preview of your Turnitin score.
10Can it check text from websites?
It checks your text against the published sources available to it, and each match links to its source when a link is available. It doesn't search every website, publication, or private document, so copied text from a source it can't reach won't show up as a match.
11Does it detect AI-generated writing?
No. Plagiarism checking and AI detection are separate tasks. Use the UnAIMyText AI Checker to assess whether text shows signs associated with AI-generated writing.
12Is a plagiarism checker the same as a grammar checker?
No. A grammar checker identifies writing issues such as spelling, punctuation, and sentence structure. A plagiarism checker focuses on potential text overlap and originality concerns. Use the UnAIMyText Grammar Checker for grammar fixes.
13What should I do if a passage is flagged?
Review the passage and its source, if one is provided. Add missing citations, mark direct quotations correctly, or rewrite the passage in your own words while attributing borrowed ideas. Don't assume every match needs to be removed.
14Is my text stored or shared after checking?
To run a check, your text is sent to our servers and compared against published sources. Our Privacy Policy explains how submitted text is processed and retained. Review it before checking confidential, personal, or unpublished material.