Viper

Viper is the plagiarism checker of choice! It scans over 10 billion resources, has an easy-to-use interface and highlights areas of plagiarism - totally free! Features ...

Free Windows Web

PlagSpotter

PlagSpotter is a revolutionary, online, duplicate content checker that allows users to put their webpage URLs in to start an Internet duplicate content scanning and...

Commercial Web

Plaghunter

Plaghunter is a reverse image search that scans where your images are being used online.

Freemium Web

Copyleaks API

Copyleaks fights plagiarism and copyright infringement online. We have advanced technology that works in any language and scans the web to detect if your content is...

Commercial Web

Copyleaks Plagiarism Checker

Copyleaks plagiarism checker scan the web for online plagiarism. Easily check for plagiarism online.

Freemium Windows

iThenticate

Learn why leading publishers, editors, researchers and authors use iThenticate plagiarism checker software to verify the originality of written work.

Commercial Web

Plagiarisma

Plagiarisma.Net is a free online plagiarism checker and duplicate content finder. Check your txt,html,rtf,doc,odt,docx,pdf files.

Freemium Windows Android Web Blackberry Chrome

Urkund

Use URKUND – the most precise plagiarism checker and detector in the world accordning to numerous studies.

Commercial Web

AntiPlagiarist

AntiPlagiarist checks multiple documents for plagiarism. PDF, Plain text, HTML files, and numerous word-processing formats are supported, including Microsoft Word and...

Freemium Windows

HelioBLAST

HelioBLAST text similarity engine finds text records that are similar to the submitted query. HelioBLAST uses our super-fast search engine.

Free Web

PlagControl

PlagControl.com provides a reliable plagiarism detection for students that helps you avoid any type of plagiarism in your papers. Experience the ultimate detection!

Free Personal Web

Searchlight

Your website's unique content belongs to you, Searchlight can help you keep it that way.

Commercial Web