Plagiarism checker for blog posts, articles and web copy

Paste your text and see how much of it matches content already online. You get a similarity score, the exact lines that match, and a link to every source.

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Each check creates a report and uses credits. Don't paste confidential or client-sensitive text unless you have permission to share it.

Check your text in three steps

No sign-up and nothing to install. Everything happens on this page.

  1. Paste your text

    Copy in the full article, headings included. A complete piece gives a more useful result than a single paragraph.

  2. Run the check

    Your text is compared with pages across the web. Long articles take a little longer, so keep this tab open while the bar fills.

  3. Review the report

    Go through each matched passage and its source, then rewrite it, quote it or add a citation.

What you get with every check

A clear report you can act on, whether you're editing your own draft or reviewing someone else's.

Similarity score

See at a glance how much of your text overlaps with pages already on the web.

Highlighted matches

Each matching passage is shown on its own, so you know exactly which lines to rewrite.

Source links

Open the page each match came from and judge the context for yourself.

PDF report

Download the full report to share with a client, an editor or a teacher.

Live word count

Word and character counts update as you type or paste, so you know your length before you check.

Works on any screen

Run a check from your phone, tablet or laptop. The report is easy to read on all of them.

Made for people who publish and review writing

Copied text can slip in when you research from many sources, quote without credit, or reuse an old draft. A quick check catches it before it becomes a problem.

Bloggers and writers

Check a draft before it goes live and fix overlaps while they're still easy to change.

SEO teams and agencies

Confirm client content is original before publishing, and keep the PDF as a record.

Students

Make sure your quotes are cited and your paraphrasing is in your own words before you submit.

Teachers and editors

Review submitted work and see the source behind any match.

How to read your score

The number on its own doesn't tell you much. What matters is which passages match and why.

A few short matches

This is normal. Common phrases, product names, place names and standard definitions turn up in almost every article on a topic.

Quoted or cited text

If a match is a quote you've credited, you're fine. Open the source link and make sure the credit points to the right page.

Long matching passages

Full sentences or paragraphs that match one source need work. Rewrite them in your own words, or quote the original and link to it.

Before you publish

Run the check again after editing to confirm the matches are gone. Save the PDF if a client or editor asks for proof of originality.

Frequently asked questions

What does the similarity score mean?

It's the share of your text that matches content found online. A higher number means more overlap. It doesn't decide whether something is plagiarism. You make that call after looking at each match and its source.

How many words do I need to paste?

At least 20. For a result you can act on, paste the whole article instead of a short section.

What happens to the text I submit?

Your text is sent to our checking service to create the report. Avoid pasting anything confidential, such as unpublished client work you don't have permission to share.

Why is my check taking a while?

Longer articles take more time to compare. The progress bar updates as the check runs. Keep the page open and your report will appear here when it's done.

Can I download the report?

Yes. When the report is ready, click Download PDF report to save a copy you can send to a client, an editor or a teammate.

Does a low score mean my content is safe to publish?

It means the checker found little overlap with what's online right now. It's still worth reading the matches it did find, and checking facts and quotes against their original source.

Is plagiarism checking the same as AI detection?

No. A plagiarism checker looks for text that matches existing pages. AI detection tries to guess whether text was written by a person or generated by a tool. This page does plagiarism checking only.

Have an article ready to go?

Paste it in and see what matches before you hit publish.

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