Free for a paper a day. $50 a year if you need more.
Every plan validates, corrects, and finds references. Plans differ only in how many references you can check.
Looking for group pricing? Research groups · Journals & conferences · Free 90-day pilot
Try it out
Guest
Free
20 referencesNo login required
Start now — no account needed- 10,000+ citation styles — APA, Chicago, MLA, any journal
- Copy & export citations
A paper a day, free
Member
Free
50 referencesper day — a typical paper
Create a free account- Everything in Guest
- 50 reference checks every day, no card
- One saved list
Best value
Any paper, any size, in one sitting
Subscriber
Early Adopter Special
$50/ year
1,000 referencesper month
Subscribe- 1,000 reference checks a month, no daily cap — dissertations, reviews, other people's papers
- Cancel any time
- Want to try it first? Invite a colleague — you both get a free month
- Three saved lists — one per paper
- Priority support via forum
- Input on new features
- Supports ongoing development
A reference check is one reference looked up against the record. Restyling and exporting a list you've already checked never counts.
Buying for a group?
Seat packs from $150 for a research group or lab or a journal or conference — every one starts with a free 90-day pilot.