Side by side

Plagiat.pl vs Plagius

Both stand on plagiarism checkers. Which one you can start free with, which one lets you read the code, and what each costs once you pay.

Plagiat.pl

Paid Web

Plagiat.pl offers source matching, reporting, and institutional workflows through a web platform. Its token limits, expiry period, and paid access matter when planning repeated checks.

Visit Plagiat.pl

Plagius combines document similarity checks with an AI-generation estimate and detailed reports. Its results are indicators for review, not confirmation, and the maker advises against external searches for sensitive or confidential data.

Visit Plagius

The facts

	Plagiat.pl	Plagius
Free plan	No	A free trial
Open source	Not published	Not published
Runs on	Web	Mac, Web, Windows
Lowest paid plan	See the plans	Plagius One Basic: $58.80 a year
Plans published	3	9
Maker	Not published	Not published
Website	plagiat.pl	plagius.com
On plagiarism checkers	#28 of 31	#24 of 31

Plagiat.pl: what it does well

Matches web and academic sources
Similarity Reports show passages and percentages
Integrates with listed school systems
Individual-account documents are excluded from databases
Phone and email support available

What to know first

No free plan
Tokens expire after six months
Maximum analysis size is 500,000 characters
Processing time can exceed 24 hours

Plagius: what it does well

Reports suspicious phrases, sources, and similarity percentages.
Supports Word, PDF, OpenOffice, PowerPoint, and other formats.
Professional desktop plans include local and batch comparisons.
Free email support is listed.
Offers AI-generation probability and confidence information.

What to know first

Demo shows only some result information.
External searches may send text fragments to search engines.
AI detection may send paragraphs to Plagius servers.
Automated results cannot confirm plagiarism without manual review.

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