Plagiarism Checker Software
Best Alternatives to Unicheck in 2026
21 top-rated alternatives ranked by similarity score, user rating & price — updated monthly
1
Grammarly Business
By Grammarly Business
Match
94%
2
Quetext
By Quetext
Match
87%
3
Copyscape
The world's most trustedplagiarism checker
Match
82%
4
Plagiarism Checker X
#1 Plagiarism Checker
Match
75%
5
Free Plagiarism Checker
By Free Plagiarism Checker
Match
68%
6
Plagscan
By Plagscan
Match
58%
7
Copyleaks
By Copyleaks
Match
58%
8
Plagramme
By Plagramme
Match
52%
9
ProWritingAid
By ProWritingAid
Match
50%
10
PaperRater
By PaperRater
Match
50%
11
Prepostseo
By Prepostseo
Match
50%
12
Noplag
By Noplag
Match
50%
13
PlagiaShield
By PlagiaShield
Match
50%
14
PlagiarismSearch Checker
By PlagiarismSearch Checker
Match
50%
15
Plagiarism Hunt
By Plagiarism Hunt
Match
50%
16
Copywritely
By Copywritely
Match
50%
17
URKUND
By URKUND
Match
50%
18
DrillBit
By DrillBit
Match
50%
19
PlagiarismCheck.org
By PlagiarismCheck.org
Match
50%
20
Plagly
By Plagly
Match
50%
21
iThenticate
By iThenticate
Match
50%