Free
Free
2,500 words per check · public web + Common Crawl · self-host for unlimited local checks
Checked 29 Sep 2026
Plans and prices
Noplag Engine pricing
Pro
$9.99 a month
50 checks per month · 25,000 words per check · Noplag Database · academic index · REST API + webhooks
Checked 29 Sep 2026
Premium
$19.99 a month
200 checks per month · 50,000 words per check · Live Web search · branded PDF reports · priority support
Checked 29 Sep 2026
Enterprise
Priced on request
Custom check volume · all corpora + Live Web · on-prem or private cloud · SSO/SAML · LMS integrations · dedicated support + SLA
Checked 29 Sep 2026