Viper alternatives

Apps that do what Viper does, from the ai plagiarism checkers list, the ones you can start free with first.

1

Plagium

Free plan AndroidAPIExtension+2

7.3 Free plan Visit site
2

DupliChecker

Free plan APIWeb

7.2 Free plan Visit site
3

PlagiarismCheck.org

Free plan APIExtensionWeb

7.2 Free plan · paid from $5.99 Visit site
4

PlagiarismDetector.net

Free plan APIExtensionWeb

7.2 Free plan Visit site
5

PrePostSEO Plagiarism Checker

Free plan AndroidAPIiPhone+3

7.2 Free plan · paid from $5.25/mo (annual) Visit site
6

PlagAware

Free plan APIWeb

7.1 Free plan · paid from €2.99/mo Visit site
7

PlagiarismSearch

Free plan APIExtensionWeb

7.1 Free plan · paid from $9.95 Visit site
8

Plagiarism Checker X

Free plan Windows

6.9 Free plan Visit site
9

SmallSEOTools Plagiarism Checker

Free plan APIExtensionWeb

6.9 Free plan · paid from $9.80/mo Visit site
10

Proofademic

Free plan APIWeb

6.8 3-day trial Visit site
11

Scribbr Plagiarism Checker

Free plan Web

6.6 Free plan · paid from $19.95 Visit site
12

SearchEngineReports Plagiarism Checker

Free plan Web

6.6 Free plan · paid from $4 Visit site
13

DrillBit

Paid AndroidAPIiPhone+1

6.0 From $5 Visit site
14

Plagius

Free trial MacWebWindows

6.0 From $6.90 Visit site
15

StrikePlagiarism

Free trial APISelf-hostedWeb

5.7 From $2.50 Visit site
16

iThenticate

Paid APIWeb

5.6 From $125 Visit site
17

PlagPointer

Paid Web

5.1 From £2.50 Visit site
18

Turnitin Similarity

Paid APIWeb

5.0 Pricing on request Visit site
19

Turnitin Originality

Paid Web

4.9 Pricing on request Visit site
20

Compilatio Magister+

Paid Web

4.6 Pricing on request Visit site

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