Verify Citation Reliability
Upload PDF to verify citations automatically and safely
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Privacy Note: PDF parsing is performed locally in your browser and is not uploaded to any server. Only extracted citation text, processed via Grobid parsing for better accuracy, is sent to Crossref and OpenAlex. Safe for unpublished manuscripts. Disclaimer here
What is Cite Checker?
Cite Checker is a free, open-source tool that automatically verifies references in academic papers. Simply upload your PDF, and we'll extract citations and cross-check them against over 200 million records in Crossref and OpenAlex databases. Catch AI-generated fake citations (hallucinations) and bibliographic errors before submission.
Key Features
Direct PDF Verification
Just drop your PDF. No manual entry needed. We auto-extract your reference list and start verification instantly.
200M+ Database Records
Cross-reference against two major academic databases: Crossref and OpenAlex. Verify citation existence with high accuracy.
Fully Local Processing
All PDF parsing happens in your browser. Your file never leaves your device. Safe for confidential research.
Fast Verification
Parallel processing verifies dozens of citations in seconds to a minute. Results appear in real-time as they're found.
Privacy Protected
Safe for unpublished manuscripts. Only extracted citation text is sent for verification—your PDF stays local.
Open Source
Source code is public on GitHub under CC BY 4.0. Free to use, modify, and share.
Who Should Use This?
Researchers Writing Papers
Verify your reference list before submission. Prevent reviewer comments about incorrect citations.
AI Tool Users
Check if citations generated by ChatGPT or Claude actually exist. Essential for AI hallucination prevention.
Students & Graduate Students
Efficiently verify references for your thesis. Improve paper quality with accurate citations.