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Crossref Similarity Check pricing

#2 of 31 in Plagiarism Checkers

Crossref Similarity Check publishes 12 plans on crossref.org — prices checked 21 Sep 2026.

9.2/10Editor score
Visit Crossref
Crossref Similarity Check9.2 Visit Crossref

Crossref Similarity Check pricing at a glance

Plans Paid No free plan — trial or paid only. Prices checked 21 Sep 2026.
See plans on crossref.org

Crossref Similarity Check plans & pricing

PlanPriceKey limits
Annual service fee — revenue/expenses under $1,000$40/yr Included in the annual membership fee invoice
  • Annual Similarity Check service fee
Annual service fee — $1,000 to $1 million$55/yr Included in the annual membership fee invoice
  • Annual Similarity Check service fee
Annual service fee — $1 million to $5 million$110/yr Included in the annual membership fee invoice
  • Annual Similarity Check service fee
Annual service fee — $5 million to $10 million$330/yr Included in the annual membership fee invoice
  • Annual Similarity Check service fee
Annual service fee — $10 million to $25 million$780/yr Included in the annual membership fee invoice
  • Annual Similarity Check service fee
Annual service fee — $25 million to $50 million$1,660/yr Included in the annual membership fee invoice
  • Annual Similarity Check service fee
Annual service fee — $50 million to $100 million$2,800/yr Included in the annual membership fee invoice
  • Annual Similarity Check service fee
Annual service fee — $100 million to $200 million$4,400/yr Included in the annual membership fee invoice
  • Annual Similarity Check service fee
Annual service fee — $200 million to $500 million$6,600/yr Included in the annual membership fee invoice
  • Annual Similarity Check service fee
Annual service fee — over $500 million$10,000/yr Included in the annual membership fee invoice
  • Annual Similarity Check service fee
Per-document checking — 1 to 100 documentsFree Invoiced annually in January for the previous year's usage
  • 1–100 documents per year
  • Up to 25,000 words per document
Per-document checking — 101 to 2,000 documents$0.75/unit usage-based Invoiced annually in January for the previous year's usage
  • 101–2,000 documents per year
  • Up to 25,000 words per document

Prices as published by the vendor on crossref.org, checked 21 Sep 2026; taxes and regional pricing may differ. We do not change a plan's price or its limits — this table is what the vendor's own pricing page said on that date.

What the price includes

  • Built for
    Small business, Mid-market, Enterprise
  • Integrations
    5 integrations: Open Journal Systems, Editorial Manager, eJournal Press, ScholarOne, Scholastica
  • Free plan
    No
  • Web source matching
    Yes

Our full Crossref Similarity Check verdict, fact sheet and score →

Prices checked by iTechGuides Editors · Editorial team · Updated Oct 2026

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