Paste your reference list and find out if you're citing retracted papers. Checks CrossRef (including Retraction Watch data) and OpenAlex in real time.
Any citation format — APA, Vancouver, numbered, etc. One reference per entry.
Your references are split and parsed to extract DOIs, titles, and authors from any standard citation format.
Each reference is matched to its DOI via CrossRef. If no DOI is present, we search by bibliographic text to find the paper.
CrossRef's update-to field (including Retraction Watch data) and OpenAlex's is_retracted flag are checked for each paper.
Papers are classified as clear, retracted, expression of concern, or unresolved (could not be matched). Full details for each.
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