DOI Tools
Verify journal DOIs, validate Crossref deposit XML, and monitor cited-by counts.
Paste your references or upload a DOCX. We’ll validate DOIs against doi.org, Crossref, and OpenAlex and return a clean report you can export.
Avoid desk rejects by ensuring every citation resolves correctly.
Pipeline queries doi.org, Crossref, and OpenAlex to cover all registration agencies.
What takes 3 hours manually takes 3 seconds with this engine.
Your profile has been submitted. An administrator will review your request and notify you at once access is confirmed.
This usually takes 1–2 business days. You can safely close this page and come back later.
Questions? [email protected]
Workspace
Start a new validation or review your recent activity.
Paste a bibliography, upload a DOCX/PDF, or use an article URL. CheckRef validates DOIs against open metadata and returns a clean, exportable list.
Upload or paste
references
Validate &
confirm DOIs
Export formatted
citations
No jobs yet — run your first validation.
Pasting references is the fastest way to start a run.
Review auto-found DOIs before downloading the list.
Check credits and job history on Profile.
Post-publication journal editor services.
Verify journal DOIs, validate Crossref deposit XML, and monitor cited-by counts.
Author intelligence & outreach — run consent-safe Google Scholar visibility campaigns for your journal's published articles.
Additional services enabled by role.
RefCraft — Audit reference style and export references in the journal's required format. CSL/citeproc with APA, Vancouver and IEEE, in English, Persian and Arabic.
Similarity checking via Turnitin / iThenticate API. Configure credentials, upload a document, and open reports when ready.
View and convert XML. The Viewer supports both PubMed and JATS; dedicated tools are enabled by role.
Account
Credits, job history, and account settings.
Your registration and contact information.
No validation jobs yet — run your first validation.
| Job ID | References | Status | Created |
|---|
CheckRef
Paste, upload, or fetch references — then validate DOIs against Crossref, OpenAlex, and DOI.org.
Add references
Paste, upload, or URL
Confirm list
Review before validating
Validate & export
Crossref · OpenAlex · export
Paste plain text, upload DOCX/PDF, or fetch from a publisher URL.
Edit reference text here. The counter updates as you type.
Pick a .txt, .docx, or .pdf file. Word/PDF extraction looks for a bibliography heading near the end of the document.
Paste a link to an article or a direct PDF URL. We download the PDF, extract the reference list, and load it into the editor for you to confirm and validate.
Enter a publisher page or direct PDF link.
Review the list above for typos or missing lines, then confirm to unlock validation.
Waiting for references…
Layer 1 checks each row against DOI.org, Crossref, and OpenAlex. Layer 2 opens Crossref Link References for unmatched rows.
CheckRef uses the free Crossref REST API (polite pool) for bibliographic fuzzy matching. When a DOI resolves at DOI.org, that registration remains authoritative.
Complete steps 1–2 to continue.
Click a row (outside links and buttons) to show or hide the full reference text. Select rows below, choose a citation style, then View formatted or export. Unmatched rows can be sent to Crossref Link References (Layer 2).
| Reference | DOI | Status | Source | Link |
|---|
Check similarity
Save institutional API credentials, upload a document, and open similarity reports when ready.
Save your institutional API details, then upload a document. If your tenant requires a browser upload, use the link on the status screen.
Fuzzy match references to DOIs using Crossref Metadata Search. Use when Layer 1 (CheckRef validation) did not resolve a DOI.
Compare the live article below with your reference.
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