Tools for researchers
Small, useful checks you can run without an account and without paying. No sign-up, no email required, nothing stored.
Reference list verifier
Paste a bibliography and every DOI is checked against CrossRef and the DOI registry. Finds citations that resolve to nothing, details that disagree with the record, and works that have been retracted.
Open the toolCitation builder
Enter a DOI and get a formatted citation in APA, MLA, Chicago, Harvard, IEEE and more, with BibTeX and RIS exports. Never invents an entry — if the DOI does not resolve, it says so.
Open the toolBeing built next.
Listed so you know what is coming, not to imply it already works.
500-word grammar check coming soon
Paste up to 500 words and see what the scanning engine finds, with the reasoning attached to every suggestion.
Publication readiness check coming soon
An explained checklist of the submission factors you actually control — title, abstract, keywords, reference breadth, and availability statements.
There isn't one, but there are limits.
These tools are free because they cost us almost nothing to run — they query public registries rather than a language model. We build them because they are genuinely useful and because researchers who find them useful sometimes come back for a full manuscript scan.
They are rate limited, so a script cannot run a thesis through in pieces. They check what they say they check and nothing more — each tool states its own limits on its page, including the things it cannot tell you.
Results are indicative and come with no warranty. See the Disclaimers for the full position.
Need the whole manuscript checked?
A full scan runs all six checks across the document, matches every in-text citation to your reference list, and gives you 7 days of rescans.