Free research tools that check before they format

AI assistants and citation generators both make up references. These tools look every reference up in Crossref, PubMed and OpenAlex first, so a wrong year, a missing author or a paper that never existed is caught before it reaches your manuscript.

Citation GeneratorPaste a DOI, PubMed ID or reference. Get it in APA, MLA, Chicago, Harvard, Vancouver, IEEE or AMA, checked against Crossref first.Reference & Citation CheckerPaste a whole reference list. Find fabricated, wrong and retracted references, then download a corrected BibTeX or RIS file.PRISMA 2020 Flow Diagram GeneratorType your counts. The diagram draws itself, checks the arithmetic, and downloads as SVG or PNG. Use them inside ChatGPT and ClaudeAdd one connector and your AI assistant checks its own references before it shows them to you.

What makes these different

Most citation generators take what you paste on trust and format it beautifully, mistakes included. Here, each reference is matched against the publisher's own record first. When the record disagrees with what you typed, you see both and the corrected version is used. When no record exists, you are told plainly instead of getting a polished citation for a paper nobody wrote.

Retractions are checked too, using the Retraction Watch data that Crossref publishes, so a retracted trial does not slip into a reference list unnoticed.