Avoid plagiarism: the pre-check for your thesis

Safe before you submit: find unintentional plagiarism in time

Plagiarism pre-check for your thesis Start scan now

Professional technology · 70 billion sources · used by 20+ universities · instant start

Every year, 10,000+ students, authors and universities trust corrected.eu
Result within 30 minutes at most, by email
Detects verbatim and paraphrased plagiarism
100% anonymous · text deleted after the check and never added to a library
Combo plagiarism + AI: €0.39 (33% off)
Price examples
Term paper 10 standard pages
€2.90
Bachelor's thesis 45 standard pages
€13.05
Dissertation 100 standard pages
€29.00
70 billion+
Sources checked
30 min.
Maximum delivery time
100%
Anonymous and secure
20+
German universities use PlagAware
>0.3 million
scans per year on PlagAware

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Reading the report

Avoiding plagiarism: what the percentage really means

The safest way to avoid plagiarism in your studies is a look at the full report. The source comparison shows your text and the passage found column by column, and colour-marked matches show you at a glance whether anything was really taken over.

With a total share of 2.8 per cent everything is in the green range, and hardly any passage lies above 90 per cent similarity. And although a source card may show 100 per cent similarity, the actual finding can cover just 17 words, or 0.30 per cent of your whole document.

A detailed explanation is in Meaning, limits and interpretation.

Prevention

Avoiding plagiarism: the four most important measures

These steps protect you effectively from unintentional plagiarism.

Mark every borrowing

Every verbatim or paraphrased borrowing must be clearly marked as such and given a reference.

Record sources as you write

A complete bibliography protects you from accusations of plagiarism.

Paraphrases need a source

Reworded content counts as plagiarism too if no source is given.

Check before you submit

A professional pre-check shows unintentional matches before your university does.

Why plagiarism often happens unintentionally

Most plagiarism in an academic paper does not come from bad intent. Often it is forgotten footnotes, incomplete references or paraphrases that stay too close to the original source and slip through while you write. With long pieces of work, such as a bachelor's thesis with 50 or more sources, it is easy to lose track.

The problem: even accidental plagiarism is treated by the university as an attempt to deceive. The consequences range from a worse mark to the withdrawal of the degree. That is why it is so important to have your academic work checked professionally before you submit it. If the report shows hits, a careful revision of the flagged passages leads you from the match to a clean final version.

Avoiding plagiarism: the best strategy

The best strategy for avoiding plagiarism rests on three pillars: cite correctly, document all sources without gaps, and have the finished work checked professionally before you submit it. Our plagiarism check shows you all matches, with a similarity value, colour-marked passages and direct links to the sources.

It makes no difference whether you are writing a bachelor's thesis, a master's thesis, a dissertation or a term paper: every academic paper benefits from a pre-check. You get certainty that your citation is right and that no accidental borrowing is hidden in your text.

How to cite correctly in your academic work

Correct citing is the foundation for avoiding plagiarism. You will find a detailed guide with examples in our APA 7 guide, and an overview of the citation styles. A few simple rules apply:

  • Always put verbatim quotations in quotation marks and give the page number.
  • For paraphrases, use your own wording and still give the source.
  • Avoid secondary quotations where you can: obtain the original source instead.
  • Use reference management: tools such as Citavi, Zotero or Mendeley help you keep track.

Even if you follow all the rules, mistakes can creep in. A forgotten reference or a paraphrase that is too close is enough for the university to recognise plagiarism. This is exactly what the pre-check is for: it finds these passages before your examiner does.

Pre-check: your safety net before submission

Our pre-check compares your academic work with more than 70 billion sources: web pages, specialist databases, repositories and work already submitted by other students. It looks not only for verbatim copies but also for paraphrases and borrowing in the same sense.

Within 30 minutes at most you receive a PDF report with:

  • A similarity value as a percentage
  • Colour-marked passages of text
  • Source references with direct links

The combination of plagiarism check and AI detector gives you maximum certainty: for only €0.39 per page you check for borrowed text and AI-generated content at the same time. See also the plagiarism and AI bundle.

Which academic work is the pre-check recommended for?
  • Bachelor's and master's theses
  • Dissertations and doctoral theses
  • Term papers and seminar papers
  • Final-year papers and final theses
  • Books and academic articles
At a glance
  • From €0.29 per standard page
  • Result in 30 min. at most
  • 70 billion sources
  • Finds unintentional plagiarism
  • Paraphrase detection
  • PDF report with sources
  • Combo + AI: €0.39 (−33 %)
  • No registration
Check now!
FAQ

Frequently asked questions

How do I avoid plagiarism in my work?

Cite all sources correctly, document borrowings straight away as you write, and have the finished work checked professionally before you submit it.

What is unintentional plagiarism?

A faulty or missing reference counts as plagiarism, even without intent. The pre-check shows where corrections are needed.

What does the pre-check cost?

€0.29 per standard page. Combined with the AI check: €0.39.

How fast is the result?

30 minutes at most, by email, fully automatic.

Does the check detect paraphrases?

Yes. Reworded borrowings are detected too.

More tools

The plagiarism checker and plagiarism software PlagAware help with avoiding plagiarism.

What does the pre-check report show?

A similarity value, colour-marked passages of text and sources with links.

Which formats are accepted?

DOCX, DOC, PDF, TXT, ODT, RTF and Pages files up to 100 MB are supported. Export LaTeX documents as PDF before uploading.

How high may the plagiarism value be?

15 to 20 % are regarded as uncritical when sources are cited correctly. More on how to read the value is in understanding scan results.

Is my work passed on?

No. Nothing is passed on to universities or databases.

Is there an AI check too?

Yes. AI detector plus plagiarism check for €0.39.

Proofreading & editing

Proofreading (from €1.90) and Editing (from €4.90) are also available.

From €0.29 per standard pageCombo bundle from €0.39
30 minutes at mostresult by email, 24/7
100 % anonymousnothing passed on to universities
Used by universitiesprofessional source comparison

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