Corroba

For educators & librarians

A free citation tool you can actually recommend.

Corroba is the clean, honest citation tool the ad-bloated incumbents aren't — no accounts, no ads, no tracking, and grounded in real databases so it never invents a source. And it goes beyond formatting: it helps students verifytheir sources and judge whether they're any good — exactly what you already teach.

Safe to put in front of students

No accounts, ever

Students don't sign up, log in, or hand over an email. Their library lives in their own browser.

No ads, no dark patterns

No pop-ups, no paywalled basic styles, no bait-and-switch subscriptions — the things that made the old tools painful.

No tracking, FERPA-friendly

No student accounts means no student records to leak. We don't sell data or run third-party ad trackers.

Grounded in real data

Every citation is built from real bibliographic databases (Crossref, OpenAlex, PubMed, Open Library, the open CSL project) — Corroba never invents a source.

It teaches, not just formats

  • It formats — 10,000+ styles, all free

    APA, MLA, Chicago, Harvard, IEEE, Vancouver and thousands of journal styles. No style is ever locked behind a paywall.

  • It verifies

    Paste a bibliography and Verify checks every reference against real databases — flagging hallucinated, mismatched, broken, duplicated, and retracted citations. Ideal for the AI-assisted-writing era.

  • It grades source quality

    Students see whether a source is peer-reviewed, a preprint, or just a webpage — the exact 'is this a good source?' judgement libraries teach in week one.

  • It teaches the 'why'

    Explain-this-citation annotates why each part is formatted the way it is; the Source Trust Score explains why a source is (or isn't) solid. A generator that doubles as a tutor.

Use it in your course or guide

A ready-made syllabus blurb — copy, tweak, done. It pairs a citation step with a verification step, which is the habit worth building in the AI era:

Cite your sources with Corroba (corroba.com) — a free, no-sign-up citation tool. Before you submit, run your reference list through Corroba Verify (corroba.com/verify) to confirm every source is real and correctly cited, and attach the verification certificate it generates.

Librarians: Corroba is a natural fit for a “Citation Tools” LibGuide alongside ZoteroBib and MyBib — with more depth (verification + source-quality). If you'd like a short blurb sized for your guide, or a 20-minute walkthrough for tutors, just email support@corroba.com.

Take a look at the tools students would use: Verify, Source Trust Score, and the generator.