Plagiarism Checker — Detect Plagiarism Online for Free

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Why users choose our Plagiarism Checker

🌎 English Fast scanning of large texts
💡 Guests up to 10,000 characters, 2 checks per hour
🪙 Users up to 15,000 characters, 3 checks per hour
🎯 PRO version up to 200,000 characters per single check, ad-free, and a separate queue
👍 Rating 4.5 based on 2300 reviews

Ensure your writing is 100% original with TextAdviser. Our advanced algorithm scans billions of web pages and academic databases to detect duplicate content, paraphrased text, and potential copyright issues. Whether you are a student, content creator, or SEO specialist, our tool helps you maintain integrity and avoid search engine penalties.

Why Choose TextAdviser?

Unlike simple text matchers, we use Deep Search technology to understand context.

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Detects Paraphrasing

We identify not just exact matches but also modified sentences where words have been swapped or rearranged, ensuring a deeper level of verification.

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Multilingual Support

Check texts efficiently in multiple languages including English, Spanish, German, French, Portuguese, and Russian without switching tools.

Real-Time Analysis

Get a detailed percentage report with direct source links in seconds. Our fast engine allows for immediate corrections and re-checking.

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100% Secure

We respect your privacy. Your texts are processed securely via SSL and are not stored in our public database or sold to third parties.

Who Needs a Plagiarism Checker?

🎓 For Students

Avoid accidental plagiarism before submitting essays or thesis papers. Identify missing citations and ensure your work meets strict academic standards.

🚀 For SEO Specialists

Duplicate content kills rankings. Use TextAdviser to ensure your website content is unique, helping you rank higher on Google and avoid penalties.

✍️ For Writers

Verify that freelance writers are submitting original work. Detect self-plagiarism and ensure your articles are fresh and engaging.

How to Interpret Your Results

  • 1. Similarity Score: Shows the exact percentage of your text that matches other sources.
  • 2. Highlighted Matches: Color-coded sections let you see exactly which parts of your text need attention or citation.
  • 3. Source Links: Direct links to the websites where the matching text was found, so you can easily add proper references.

Frequently Asked Questions

Is TextAdviser free to use?

Yes, we offer a free version that allows guests to check up to 10,000 characters. For larger documents and an ad-free experience, check our PRO plans.

Can it detect AI-generated text?

Our primary focus is plagiarism detection, but our algorithms are tuned to spot unnatural patterns often found in AI-generated content (ChatGPT, etc.).

Do you save my submitted text?

We prioritize user privacy. Your text is processed for analysis and is not sold or made publicly available.

5 Comments

samykey59

Me gusta es página, muy especial para reconocer las falencias que se presentan en la construcciòn de los textos.
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Edi Pedro

Me ha gustado mucho, pero no hace referencia a la forma para corregir el texto. sugiero que haya esa alternativa para que la aplicación cumpla con su objetivo.
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markohaireuk

Проверил текст на своем сайте и написал статью!
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manjunja1962

Спасибо! Очень помогли быстро и качественно проверить текст статьи!
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Dominick Clifford-Leonard

I really like Text-advisor and it helps me make my essays better
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