Alternatives to Viper for all platforms with any license

Platforms

Show 7 less popular platforms
  • Plagtracker icon

    Plagtracker

    The best free plagiarism checker. Check your paper online! The most accurate results, easy and usable report.

    Freemium Web

    No features added Add a feature
  • plagramme icon

    plagramme

    Professional plagiarism checker that reviews over 14 trillion web pages, articles, books, and periodicals to help you detect possible plagiarism in your papers. It finds...

    Freemium Web

    No features added Add a feature
  • Turnitin icon

    Turnitin

    Turnitin is an Internet-based plagiarism-detection service created by iParadigms, LLC. It prevents plagiarism by using a proprietary algorithm to compare submitted...

    Commercial Web iPad

  • SCRiBBR Plagiarism Check icon

    SCRiBBR Plagiarism Check

    This plagiarism check uses the best of both worlds. The plagiarism detection software from Ephorus and the enormous scientific database from Turnitin. Custom-made for...

    Commercial Web

    No features added Add a feature
  • Noplag.com icon

    Noplag.com

    Easy to use! No Downloads! Excellent Plagiarism Detecting Technology. Noplag - Check Your Paper Online and Detect Plagiarism.

    Freemium Web

    No features added Add a feature
  • iThenticate icon

    iThenticate

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

    Commercial Web

    No features added Add a feature
  • Plagiarisma icon

    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 Web Android Blackberry Chrome Firefox

    No features added Add a feature
  • PlagScan icon

    PlagScan

    The Internet makes plagiarism a bigger problem than ever. Now you can turn the tables on them and find the "forgotten" sources! You no longer have to try...

    Commercial Web

    No features added Add a feature
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  • 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

  • Copyscape icon

    Copyscape

    Copyscape is a free plagiarism checker. The software lets you detect duplicate content and check if your articles are original.

    Freemium Web

    No features added Add a feature

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