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Scribbr is committed to protecting academic integrity. Our plagiarism checker, AI Detector, Citation Generator, proofreading services, paraphrasing tool, grammar checker, summarize, and free Knowledge Base content are designed to help students produce quality academic papers. We make every effort to prevent our software from being used for ...
- Research Methodology
- General Conclusions: Free vs. Paid Checkers
- Scribbr Review
- Plagaware Review
- Prepostseo Review
- Grammarly Review
- Duplichecker Review
- Check-Plagiarism Review
- Copyleaks Review
- Small SEO Tools Review
The plagiarism tools in this research were tested using four test documents, ranging from unedited to heavily edited. Each test document consisted of plagiarized sections from 140 sourceslike Wikipedia articles, news articles, open-access journal articles, websites, theses and dissertations, and PDFs. This setup allowed us to analyze: 1. The reliab...
We found that free tools were frequently misleading in their advertising and were lacking in many ways compared to paid ones. Our research led to these conclusions:
Pros
1. Offers a limited free version 2. Finds far more plagiarism than other tools 3. Detects plagiarism even in edited texts 4. Won’t store or sell your documents 5. Money-back happiness guarantee, with live support available 6. Self-Plagiarism Checker feature allows you to check for self-plagiarism
Cons
1. You need to go premium to find out your precise similarity score and view the entire report
Free?
Scribbr offers a limited free version that’s perfect for checking if your paper contains potential plagiarism. To view the full report, you need to buy the premium version, which costs between $19.95 and $39.95 depending on the word count. There’s no word limit, so you can upload as big a document as you want.
Pros
1. Online report is color-coded 2. Detects more plagiarism than other tools (aside from Scribbr) 3. Won’t store or sell your documents
Cons
1. Only a one-time free trial before you must pay 2. Difficult to read PDF reports 3. Does not work well for scholarly sources
Free?
PlagAware offers a one-time trial of 10 credits (10 pages). To get the results of this trial, you must sign up for an account. If you want to run additional scans, you must buy additional credits (beginning at 100 credits for $15).
Pros
1. Color-coded highlighting for different types of plagiarism 2. Some full matches 3. Citation assistant
Cons
1. Detects a low proportion of plagiarism 2. Downloadable report is hard to read 3. Color coding doesn’t distinguish between different sources
Free?
With the free version of Prepostseo, users can scan up to 1,000 words at a time and can perform 30 search queries per month (one search query = one sentence), according to Prepostseo’s website. During our testing, the search query limit did not seem to apply, though. The cheapest monthly plan ($10/month) allows up to 5,000 words per search and 5,000 search queries.
Pros
1. Language and citation assistant available 2. Does not sell or share documents with third parties
Cons
1. Free report gives very minimal information 2. Finds a relatively low percentage of plagiarism 3. Same colors used for different sources
Free?
The plagiarism checker is not included in Grammarly’s free plan. All you can see is a screen that tells you there’s plagiarism in your text without giving you any details of where it is, how much of it there is, or what the sources are. After this, you’re directed to subscribe to Grammarly’s premium service ($12 per month). There’s a limit of 100,000 characters (about 20,000 words) per document even after paying.
Pros
1. Free (1,000 words per scan) 2. Doesn’t save uploaded documents 3. Relatively user-friendly reports
Cons
1. Distracting ads for other services 2. Low level of plagiarism detected 3. Only able to find partial matches 4. No color coding for different sources
Free?
DupliChecker’s service is free, though you can only upload 1,000 words at a time. If you go for one of their premium plans, you can go up to 25,000. If you do want to upgrade, a large number of different premium plans are offered on the site, which can be somewhat confusing to navigate. The cheapest is $10 a month.
Pros
1. 1,000-word upload limit 2. Online report clearly matches plagiarized content with source
Cons
1. Difficult to match text with sources in the downloadable report 2. Different sources highlighted in the same color 3. Scans sentence by sentence—rarely gets a full match 4. Site has a lot of ads that interfere with usability
Free?
Check-Plagiarism is free for scans of up to 1,000 words. Their site says that guests are limited to 50 search queries/month (one sentence = one query). However, it was not clear that this limit was enforced during our testing. A weekly plan ($6.99/week) increases this limit to 10,000 words, and a monthly plan ($17/month) increases it to 35,000 words.
Pros
1. Formatting is preserved in the online tool 2. Online report clearly matches plagiarized content with source
Cons
1. Only one free trial available 2. Difficult to match text with sources in the downloadable report 3. Performs poorly with academic sources 4. Unclear data protection policy
Free?
Copyleaks offers one trial of 2,500 words. To get the results of this trial, you must sign up for an account. After the trial, you must sign up for a subscription plan to run more scans. Monthly subscriptions start at $16.99/month for 100 credits (1 credit = 250 words). Annual subscriptions start at $13.99/month for 1200 credits.
Pros
1. Free (1,000 words per scan) 2. Various options for document uploads 3. Documents not stored in database
Cons
1. Low level of plagiarism detected 2. Page is slow and somewhat confusing 3. Scans individual sentences rather than full texts
Free?
Small SEO Tools is free to use, although you can only check 1,000 words at a time without paying. You can run multiple checks if you need to scan more than that, although the site requires you to complete CAPTCHAs to upload multiple documents.
The accuracy depends on the plagiarism checker you use. Per our in-depth research, Scribbr is the most accurate plagiarism checker. Many free plagiarism checkers fail to detect all plagiarism or falsely flag text as plagiarism. Plagiarism checkers work by using advanced database software to scan for matches between your text and existing texts.
What is Scribbr’s Plagiarism Checker? Scribbr’s plagiarism checker scans documents and checks for similarities with already published materials (both online and in academic journals, publications, and other databases) to locate potential plagiarism. Scribbr’s plagiarism checker is powered by Turnitin, a well-known academic plagiarism checker.
Your plagiarism report within 10 minutes. 1. Upload. Upload a Microsoft Word, PDF or ODT file of your paper, enter your details and pay. 2. Wait a few minutes. Your document is compared to billions of web pages, books, articles and more. This may take a few minutes. 3.
Extensive testing proves that Scribbr’s plagiarism checker is one of the most accurate plagiarism checkers on the market in 2024. The software detects everything from exact word matches to synonym swapping. It also has access to a full range of source types, including open- and restricted-access journal articles, theses and dissertations ...
People also ask
How does scribbr plagiarism checker work?
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Can scribbr check if a student paper is plagiarized?
How does scribbr help students avoid plagiarism?
Jul 23, 2024 · It powers Scribbr’s Plagiarism Checker and boasts a vast database and rigorous algorithms, making it a highly reliable tool for academic writing. While Turnitin is less user-friendly than Scribbr and lacks some additional features, like professional editing and citation generation, its strength lies in its unparalleled accuracy and its ability to detect even the most subtle instances of ...
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justdone.ai has been visited by 100K+ users in the past month
Plagiarism checker and detector: Fast, Reliable & User-friendly. Perfect For Writers & Professionals. Get Quick And Accurate Scans For AI Plagiarism. Ideal For Writers. Try Now.
