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Head-to-head · Plagiarism Checkers

Crossref Similarity Check vs MOSS

  • Updated Oct 2026
  • Both researched from official sources
  • 4 checks side by side
Higher score Crossref Similarity Check #2 in Plagiarism Checkers 9.2/10 Paid ✓ 3 of 4 features Visit Crossref
MOSS #5 in Plagiarism Checkers 8.8/10 Free plan Free plan✓ 0 of 4 features Visit MOSS

Crossref Similarity Check leads on 2 checks, MOSS on 1, and 1 is even. Who comes out ahead on the 4 yes/no, price and count checks where we have data for both products. The editor score weighs everything else too.

Our verdict

  • Highest scoreCrossref Similarity Check · 9.2/10
  • Free planonly MOSS
  • Most featuresCrossref Similarity Check · 3 of 4

Crossref Similarity Check scores higher on our rubric for plagiarism checkers: 9.2 against 8.8 out of 10; our editors rank them #2 and #5.

MOSS offers free plan; Crossref Similarity Check doesn't. Crossref Similarity Check offers web source matching; MOSS doesn't. Crossref Similarity Check offers academic source matching; MOSS doesn't.

Crossref Similarity Check is the better fit for publishers and journals checking manuscripts. MOSS is the better fit for free source-code checks across many languages.

  • Crossref Similarity Check fits best

    Publishers and journals checking manuscripts

  • MOSS fits best

    Free source-code checks across many languages

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Side by side

Feature Crossref Similarity Check 9.2/10 Visit ↗ MOSS 8.8/10 Visit ↗
At a glance
Editor score 9.2 8.8
Ranking #2 in Plagiarism Checkers #5 in Plagiarism Checkers
Best for Publishers and journals checking manuscripts Free source-code checks across many languages
Pricing model Paid Free
Starting price — Free
Free plan — ✓ (best)
Free trial — —
Deployment Cloud Cloud
Platforms Web Web, Linux
Support Email, Phone, Docs Email
Built for Small business, Mid-market, Enterprise Small business, Mid-market, Enterprise
Features Crossref Similarity Check 3/4 · MOSS 0/4
Web source matching ✓ (best) —
Academic source matching ✓ (best) —
API access ✓ (best) Not checked yet
LMS integration Not checked yet Not checked yet
Specs
Supported languages Not checked yet 24 languages
Word limit Not checked yet Not checked yet
Report export formats PDF HTML
Our review
Pros
  • Compares manuscripts with academic content and current or archived web pages
  • Detailed reports include scores, highlighted matches, filters, and PDF export
  • API access supports manuscript submission systems, including OJS
  • Free for non-commercial use with account registration
  • Analyzes source code across 24 listed programming languages
  • Highlights matching passages and excludes expected shared code
Cons
  • Available only to eligible Crossref members
  • Annual service fee is required
  • First 100 documents are limited to 25,000 words each
  • Designed for non-commercial use
  • Requires Linux submission script for file submission
  • Results indicate similarity and require human review
Our verdict

Crossref Similarity Check is a manuscript-screening service for Crossref members, powered by Turnitin’s iThenticate software. Publishers and editors can upload manuscripts or submit them through a manuscript submission system using an API.…

Read the review →

MOSS, or Measure Of Software Similarity, is an Internet service for comparing source-code submissions and detecting potential plagiarism in programming classes. It is suited to instructors and educational settings that need to review…

Read the review →
  1. Crossref Similarity CheckPlagiarism Checkers 9.2Paid
  2. MOSSPlagiarism Checkers 8.8Free plan

Strengths and trade-offs

  • Crossref Similarity Check — where it wins

    • Compares manuscripts with academic content and current or archived web pages
    • Detailed reports include scores, highlighted matches, filters, and PDF export
    • API access supports manuscript submission systems, including OJS

    Where it doesn't

    • Available only to eligible Crossref members
    • Annual service fee is required
    • First 100 documents are limited to 25,000 words each

  • MOSS — where it wins

    • Free for non-commercial use with account registration
    • Analyzes source code across 24 listed programming languages
    • Highlights matching passages and excludes expected shared code

    Where it doesn't

    • Designed for non-commercial use
    • Requires Linux submission script for file submission
    • Results indicate similarity and require human review
  • Crossref Similarity Check9.2/10 · Paid

    A focused manuscript-screening service with academic matching, reports, filters, and API access.

    Visit CrossrefFull verdict →
  • MOSS8.8/10 · Free plan

    A free code-similarity checker for programming courses, not web or academic-document plagiarism.

    Visit MOSSFull verdict →

More comparisons

All plagiarism checkers comparisons → · Full ranking →

Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026

Last updated · How we research and update