Plagiarism Checker By Qualified Writers, Since 2001

A plagiarism checker is only as useful as the person reading the report, and at Projectsdeal we pair a genuine Turnitin similarity check with a qualified academic who explains exactly what every highlighted line means. Since 2001 we have helped thousands of UK students verify originality, cut false-positive matches and submit with total confidence.

Why a Plagiarism Check Is More Demanding Than It Looks

Most students assume a plagiarism check produces a single number and that a low percentage automatically means safety, but the reality is considerably more nuanced. A Turnitin similarity score bundles together your bibliography, correctly quoted material, common academic phrasing and genuinely problematic passages into one figure, which means a report of 22% can be perfectly acceptable in one module and a serious red flag in another. The skill lies in reading the colour-coded breakdown, isolating which matches are unavoidable and which need attention, and understanding your own department’s tolerance and referencing expectations. Without that interpretation, a raw score tells you almost nothing about whether you are at risk of an academic misconduct panel.

The second complication is that similarity and originality are not the same thing. A passage can score 0% similarity and still be plagiarised if it paraphrases a source too closely without citation, and conversely a heavily quoted literature review can score high while being entirely honest scholarship. Add the recent arrival of AI-writing detectors, which flag work as machine-generated on the basis of statistical patterns rather than copied text, and students now face two separate risks that behave in completely different ways. Understanding the difference between a similarity match and an AI-writing flag is now essential to any credible originality check.

Projectsdeal approaches the whole process as a diagnostic exercise rather than a box-ticking one. We run your document through a genuine institutional-standard similarity engine, then a qualified subject specialist reads the full report line by line, categorises every match, and tells you in plain English what is safe, what is borderline and what must be fixed before submission. Where the report reveals genuine problems – missing citations, patchwork paraphrasing, or over-reliance on a single source – we can rewrite and re-reference the affected passages so the underlying scholarship is sound, not merely disguised. That combination of accurate detection and expert human judgement is what separates a meaningful originality service from a free tool that spits out a meaningless number.

Areas We Cover

Formats & Deliverables We Handle

What Makes Our Work Score Higher

Genuine Institutional-Standard Reports

We do not rely on free web tools that compare your work against a fraction of the internet and miss academic databases entirely. Our checks draw on the same class of repositories that UK universities use, including published journals, student paper archives and web content. That means the score you see from us closely mirrors the score your marker will see, with no nasty surprises after submission. Accuracy at the detection stage is the foundation of everything else we do.

Human Interpretation, Not Just a Number

A percentage on its own is close to useless, so every report we deliver is read by a qualified academic who has marked and moderated real student work. They categorise each match as bibliography, quotation, common phrasing or genuine concern, and they tell you which is which. This is the single biggest difference between us and an automated tool. You leave knowing precisely what, if anything, needs to change.

Real Rewriting When It Is Needed

Where a report exposes genuine problems, we fix the underlying writing rather than papering over it with synonyms. Our specialists re-author the affected passages so the argument is expressed in your own analytical voice with transparent, correct citation. Synonym-spinning tools leave clumsy, detectable text and often introduce new errors, whereas proper rewriting improves both the score and the mark. The scholarship comes out stronger, not merely quieter.

Referencing Expertise Across Every Style

Because most similarity problems are really citation problems, our team works fluently in Harvard, APA, MHRA, OSCOLA, Vancouver, Chicago and IEEE. We correct the small mechanical errors – missing page numbers, uncited paraphrase, mismatched reference lists – that quietly inflate scores and lose marks. Getting the referencing right often solves the similarity issue without touching your argument at all. It is meticulous work that pays off twice.

Complete Confidentiality

Your document is never added to any public database, sold, resold or shared, and it will not appear as a match if you or anyone else submits later. We check in a private, non-repository mode precisely so your originality is preserved for your real submission. Every file, name and detail is handled under strict confidentiality. Discretion has been central to how we have operated since 2001.

How It Works

What Our Students Say

Frequently Asked Questions

Related Projectsdeal Services

Every Academic Level We Cover

Topics & Modules We Cover

Originality checking is subject-agnostic, but the way similarity behaves varies enormously between disciplines. A law essay full of statute names will flag differently from a nursing reflection or an engineering lab report, so our specialists match your work to a reviewer who understands its conventions. Below are just some of the areas and check types we handle regularly.

Whatever your discipline, the underlying promise is the same: a genuine check, honest interpretation and, where you want it, expert correction. If your subject is not listed, it simply means we have not needed a separate tag for it, not that we cannot help. Just tell us what you are studying when you request a quote.

Referencing Styles We Work Across

The overwhelming majority of similarity problems that reach us are, at root, referencing problems, so fluency across styles is essential to our work. Harvard remains the most common in UK social sciences and business, with its author-date in-text citations and alphabetical reference list, and small slips such as a missing page number on a direct quotation routinely inflate scores. APA 7th, dominant in psychology and education, has its own precise rules for et al., DOIs and hanging indents, while Vancouver’s numbered system in medicine and nursing behaves differently again and produces distinctive match patterns. In law, OSCOLA relies on footnotes and pinpoint references to cases and statutes, which is why legal writing so often shows high raw similarity that is entirely legitimate once a specialist reads it.

Humanities students working in MHRA and Chicago face footnote-heavy conventions where the same source may appear many times, and detectors can misread repeated citation formatting as copied text. Engineering and computing candidates using IEEE encounter bracketed numeric citations and heavy reuse of standard technical terminology that naturally clusters as matches. Our reviewers understand each of these systems well enough to separate the mechanical, unavoidable similarity from the genuine concern, and to correct the citation errors that quietly cost marks. Getting the referencing right is frequently the single most effective way to bring a score down honestly, because it addresses the cause rather than the symptom.

Our Five-Stage Quality Assurance Process

Support for Students Worldwide

More Questions

Understanding Similarity Reports: Frameworks & Concepts

To read a similarity report well you need to understand the concepts behind the colours and numbers, because the tool measures text overlap, not dishonesty. The following frameworks are the ones our specialists apply every day when they interpret your report and decide what, if anything, needs to change.

The Overall Similarity Index

The headline percentage represents the proportion of your text that matches other sources in the database. Crucially, it includes quotations and your bibliography unless those are filtered out, which is why a raw score can look alarming while being perfectly honest. We always recalculate the meaningful figure with references and correctly cited quotes excluded. That adjusted number is the one that actually matters to your marker.

Source-by-Source Breakdown

Beneath the headline figure, the report lists each matched source and the percentage it contributes. A score built from one hundred tiny one-percent matches is very different from one driven by a single twenty-percent match to one website. The former is usually common phrasing; the latter demands attention. We read this breakdown to locate the real story behind your number.

Match Colour Bands

Similarity engines colour-code matched passages so you can see at a glance where overlap clusters. Blocks of a single colour running through one section often signal a passage that leaned too heavily on one source. Scattered colour throughout usually reflects normal academic vocabulary. Learning to read the pattern rather than the percentage is the key skill.

Quotation vs Paraphrase

A direct quotation should be in quotation marks and cited, in which case its similarity is legitimate and expected. A paraphrase should restate the idea in genuinely different words while still crediting the source. Trouble arises when paraphrase stays too close to the original, which reads as copying even with a citation. We identify and rebuild these borderline passages.

Exclusion Filters

Markers can choose to exclude the bibliography, quotations or small matches from the score, and different departments set these filters differently. A report can therefore show wildly different figures depending on the settings. We interpret your report under the settings your institution actually uses. This prevents needless panic over an artificially high raw number.

AI-Writing Indicators

Separate from similarity, AI detectors estimate the probability that text was machine-generated based on statistical uniformity and predictability. These tools are far less reliable than similarity engines and produce false positives on genuine human writing, especially formal academic prose. We help you understand the flag and, where appropriate, adjust phrasing that happens to look mechanical. This protects students who wrote every word themselves.

How We Approach Your Work, Step by Step

Every order follows a consistent, transparent path so you always know what is happening to your document and why. Here is exactly how we work from the moment your file reaches us to the moment you submit.

Step 1: Clarify Your Situation

We start by understanding your assignment, your referencing style, your department’s tolerance and any specific worry you have. A student facing a strict 10% limit needs different advice from one simply seeking reassurance. This context shapes how we read your eventual report. Getting it right at the outset saves time later.

Step 2: Run the Genuine Check

We process your work through an institutional-standard similarity engine and a separate AI-writing detector. This produces the complete, unedited report rather than a summary figure. We capture it exactly as a marker would encounter it. Accuracy here underpins every judgement that follows.

Step 3: Read and Categorise

A subject specialist reads the full report line by line and sorts every match into a category. Bibliography, quotation, common phrasing and genuine concern each get treated differently. Only the genuine concerns require action. This human filtering is where the real value is created.

Step 4: Advise or Correct

We either hand you an annotated report to act on yourself or carry out the corrections for you, depending on what you asked for. Corrections mean real rewriting and re-referencing, never synonym-swapping. Each change is explained so you learn from it. You stay in control throughout.

Step 5: Re-Check and Confirm

After any corrections we run the check again to verify the improvement is real. We keep iterating until the score honestly reflects sound scholarship. You see the before and after clearly. Nothing is left to guesswork.

Step 6: Deliver and Support

You receive the final report, a plain-English summary and any revised text, plus ongoing support before submission. Free revisions cover any writing we did. We are available to answer follow-up questions right up to your deadline. Then your files are closed confidentially.

Common Mistakes We Help You Avoid

Example Titles We Have Handled

Our reviewers see documents from every discipline, and the pattern of similarity differs sharply between them. Here is a representative sample of the kinds of work we have checked, interpreted and, where asked, corrected.

• Similarity audit and reduction of a 12,000-word MSc marketing dissertation from 34% to 11%
• OSCOLA citation and quotation review of an LLB essay on the law of negligence
• AI-writing verification for a genuinely authored final-year psychology report flagged by a free detector
• Self-plagiarism check comparing a PhD chapter against the candidate’s two published journal articles
• Harvard referencing audit of a BA education literature review scoring high on common phrasing
• Full Turnitin interpretation of a nursing reflective assignment using Vancouver style
• Patchwork-paraphrase rebuild of a business strategy case study drawing on multiple sources
• Originality and template-phrase check of a postgraduate UCAS personal statement

Key Terms Explained

The language around plagiarism software can be confusing, so here are the terms our reports use, explained plainly. Understanding these makes your own report far easier to read.

Our Guarantees

What’s Included in Every Order

Turnaround Options to Suit Your Deadline

The Writers Behind Your Work

The people who read your similarity report are not technicians running software; they are qualified UK academics who have taught, marked and moderated real student work. Many hold master’s degrees and doctorates in their fields and have sat on the other side of the desk, deciding whether a flagged passage represents an honest slip or genuine misconduct. That experience is precisely what lets them tell you, with authority, which matches your marker will wave through and which will draw a query. When they annotate your report, they are drawing on years of knowing how examiners actually think.

Just as importantly, our reviewers are subject specialists, so a law dissertation goes to someone fluent in OSCOLA and case citation, while a nursing reflection goes to someone versed in Vancouver and reflective models. This matters because similarity behaves so differently across disciplines that a generalist would misread the report. Every corrector who rewrites a flagged passage does so in clear, human academic prose that passes AI detection cleanly, because we never use machine-generated text. The result is guidance you can trust and, where you need it, corrections that genuinely improve your scholarship rather than merely disguising it.

Why Students Choose Projectsdeal

A Track Record You Can Trust

Since 2001, Projectsdeal has grown from a small UK academic-support service into a trusted name that generations of students have turned to at the most stressful moments of their studies. Over that time the technology has changed enormously – from the earliest text-matching tools to today’s sophisticated similarity engines and AI-writing detectors – but the fundamental need has not. Students still need to know, before they submit, that their work will stand up to scrutiny, and they need a knowledgeable human to tell them what the software actually means. That is the constant we have built our reputation around.

What has kept students coming back, and recommending us to friends, is the combination of honesty and expertise. We will never tell you a score is fine when it is not, and we will never inflate a concern to sell you a rewrite you do not need. Our reviewers interpret your report straight, explain their reasoning, and let you decide how to act. When corrections are warranted, they are carried out properly by qualified specialists in clean, human prose. That integrity is why so many of our students return for their next assignment, their dissertation, and eventually their thesis.

The best next step is simply to see where you stand. Use the instant quote calculator at the top of this page to get a transparent price with no payment required and no obligation, then send us your document whenever you are ready. Whether you want a straightforward check for peace of mind, a full interpretation of a worrying report, or expert reduction of a genuinely high score, we are ready to help you submit with total confidence. No fabricated promises, no jargon – just a genuine check, an honest reading and, if you want it, real correction from people who have done this since 2001.