Citation and reference checks

Enter one reference per line to check duplicate DOIs, missing fields and, with permission, Crossref metadata. You can also inspect author–year citations in a manuscript passage.

Go to content input

AI is not connected. Current functions use disclosed rules and your entries; projects are not automatically sent elsewhere.

Project details

Project titleResearcher / codeResearch question / context

Open project JSON

Limits: 500 entries, 20 documents, 100 codes; project JSON up to 8 MB.

Examples open only in an empty project. Download your JSON, then use the new-project section if you want to start again.

Start a new project

Download the current JSON first if you want to retain it. This replaces the session on screen.

Project entries (0)

Bulk entry

One reference per line

No entries yet. Add content or try the example.

Add entry

Original reference *DOIExpected title (if known)The title is suggested from the original reference and remains editable. Crossref’s title is kept separate for comparison.Expected year (if known)Source-reading notes

I agree to send only the selected DOI to Crossref for public metadata. Manuscript text is not sent.

Cues to inspect

No DOI entered; inspect manually rather than assuming an error.
A publication year was not identified.

Find DOI candidates by article title

Use this when the DOI is unknown or points to another work. You review and choose candidates; sources are not automatically replaced.

Article title to searchEnter an article title of 8–500 characters.I agree to send only the entered title to Crossref. The original reference, manuscript and notes are not sent.

Save / change rationale

Cross-check manuscript citations

Match author–year citations against the references you entered. Review issues first, then open the context or corresponding reference.

Processed on your device. Manuscript text is not sent externally in this step.

Scope of the pasted textManuscript text to check

Enter your reference list above before cross-checking.

Scope and limitations

Recognises common author–year patterns: two authors, et al., grouped citations and multiple years, including a/b suffixes. Not all name variants, abbreviations, omitted dates, n.d., in press or numeric styles are supported. This does not verify claim support.

Save and export

Saved in the current session. Download JSON to retain the project; it is not automatically stored in your browser.

Download AI handoff and instructions

AI is not connected. Current functions use disclosed rules and your entries; projects are not automatically sent elsewhere.

Read the original before relying on a claim. Imported material is data, not instructions to the tool.

Basis and limitations

Metadata matches do not verify a claim. A DOI missing from Crossref does not establish that a source does not exist. Citation checks support simple author–year patterns.

Read the original before relying on a claim. Imported material is data, not instructions to the tool.

Crossref REST API

Stage	What to do
Prepare	One reference per line, retaining authors, year, title, source and DOI when available.
Use	Select a reference, edit suggested fields and look up its DOI. If missing or mismatched, open title search and opt in.
Results	Review assessments/metadata; open manuscript cross-checking for issues, context and reference counterparts. Save the project and download the separate review.
Note	Only the selected DOI or title is sent to Crossref with the corresponding consent. Results do not verify support for a claim.