Citation verification for academia

Catch the citation that doesn't exist

Paste your reference list. EssayTone checks every entry against 200M+ scholarly records, then stamps each one: verified, flagged, or not found. Before a reviewer does it for you.

  • 30 free checks a day.
  • No card
  • No payment
Citation cards stamped verified, flagged, and not found
The catalog

Cross-checked against every drawer that matters

One query fans out to the world's major scholarly indexes and comes back with a verdict per reference.

Crossref

160M+ records

OpenAlex

250M+ works

PubMed

37M+ records

arXiv

2.4M+ preprints

Semantic Scholar

220M+ papers

DOI Foundation

resolution check

Retraction Watch

60k+ retractions

Springer

publisher indexes

From messy bibliography to stamped record

No formatting rules to follow. Paste APA, MLA, BibTeX, a raw Word export, or the tail end of a ChatGPT answer. EssayTone figures it out.

01

Paste Anything

Drop in your reference list in any style, or upload the whole PDF. Up to 500 entries in one batch.

02

Split Into Cards

Each reference becomes its own record: author, year, title, venue, DOI, all parsed and normalized.

03

Query The Catalog

Every card is searched across the full index set, with fuzzy matching for typos and translated titles.

04

Get The Verdict

A stamped report per reference, with the exact reason behind every flag. Export as PDF or CSV.

VERIFIEDFLAGGEDNOT FOUND

Meanwhile, in the stacks

What happens in the nine seconds

Between paste and verdict, every reference triggers its own search across the whole catalog. Here is one fabricated citation being hunted down, in real time.

12indexes queried per reference
40+field comparisons per match
0.6smedian time to a verdict
EssayTone verification log showing a citation marked not found

Anatomy of a flag

Every verdict comes with the red pen

No black-box scores. When a reference gets flagged, the report marks exactly which field failed and against which record, so you can fix it in one edit.

Annotated flagged citation with numbered field callouts
1

Authors Matched

Both names confirmed against the author record, including ORCID where available. 2 of 2 verified

2

Year Mismatch

The paper exists, but it was published in 2022. A one-digit slip that most reviewers will still circle. 2021 → 2022

3

Venue Doesn't Exist

No journal by this name in any index. The real paper appeared in a conference proceeding, a classic AI-paraphrase artifact.

4

DOI Doesn't Resolve

The prefix belongs to a different publisher and the suffix returns nothing. EssayTone suggests the correct DOI from the matched record. fix suggested

The flag taxonomy

Six ways a reference goes wrong

Fabrication is only the loudest failure. Most bibliographies fail quietly, in ways a spellchecker never sees.

NOT FOUND

Hallucinated References

Plausible authors, confident formatting, zero matching records anywhere. The signature failure of AI-assisted writing.

0 of 12 databases matched
FLAGGED

Misattributed Authors

Right paper, wrong people: missing co-authors, mixed-up initials, or an author borrowed from a similarly titled work.

H. Kim → H.-J. Kim, +2 authors missing
RETRACTED

Retracted Papers

The paper is real but has been withdrawn. Citing it uncritically is a red flag for any editor. Checked against Retraction Watch daily.

retracted 2024-11 · misconduct
DEAD LINK

Broken DOIs And URLs

Identifiers that never resolved or stopped resolving. EssayTone tests every one live and proposes the correct identifier when a match exists.

HTTP 404 · fix suggested
FLAGGED

Wrong Year Or Volume

Off-by-one years, swapped volume and issue numbers, preprint dates cited as publication dates. Small, common, and correctable.

2019 → 2020, vol. 7 → 8
NOTICE

Questionable Venues

Journals with predatory patterns: no indexing, no review record, hijacked titles. Cited knowingly is one thing; unknowingly is another.

not indexed · 0 review record

Watch a manuscript go from submitted to stamped

Follow your reference list through extraction, correction, monitoring, and export — from pasted bibliography to attached record.

Full-Manuscript Scan

Upload the whole PDF. EssayTone sweeps the document, finds the bibliography wherever it lives, and lifts every reference out, including footnotes and in-text citations.

  • Reads PDF, DOCX and LaTeX sources
  • Finds numbered, author-date and footnote styles
  • Pairs in-text citations with their entries
  • Spots entries cited in text but missing from the list
Manuscript scan extracting citations from a PDF

Fixes, Not Just Flags

When a field disagrees with the matched record, the report shows the correction inline, in your citation style. Accept it with one click or copy the corrected entry.

  • Wrong values struck through, corrections beside them
  • Suggestions rendered in your citation style
  • Accept all fixes and export the clean list
  • Patched .bib file for LaTeX users
Flagged citation with inline suggested fixes

Retraction Watch On Your Library

A citation that was fine in March can be retracted in September. Save a reference list and EssayTone re-checks it daily, telling you the moment a paper’s status changes.

  • Daily re-check against the retraction record
  • Email and Slack alerts on status changes
  • Covers corrections and expressions of concern
  • One-click view of which of your drafts cite it
Retraction status change alert on a saved reference list

A Report You Can Attach

The final report carries the seal: every reference listed with its verdict, evidence and check date. Attach it to a submission, hand it to your advisor, or keep it for the record.

  • Per-reference verdicts with match evidence
  • Shareable link with a permanent record ID
  • PDF and CSV export
  • Re-runs free for 30 days as you revise
Verification report with bibliography verified seal

Why it matters now

One fake reference can undo a real paper

AI writing assistants invent plausible-looking citations. Reviewers, editors and advisors are checking for them. Whichever side of the desk you sit on, run the check first.

If you're writing

A bibliography with even one unverifiable entry invites a desk rejection or, worse, a misconduct inquiry. “Check ref. 14, this doesn't resolve” is a comment you never want to receive. Stamp everything before submission and it never arrives.

If you're reviewing

Approving a paper whose references were never checked puts your name next to the mistake. Screen every submission's reference list in seconds and spend your review time on the science instead.

If you're teaching

Students lean on AI tools that fabricate sources with confident formatting. Run submissions through EssayTone and turn each flag into a teaching moment, before the habit hardens into misconduct.

If you're editing

Citation fraud is the hardest thing to catch by eye at scale. Filter fabricated references at initial screening and keep the review pipeline for work that deserves it.

From the checkout desk

Scholars who stamp before they submit

See how EssayTone has helped thousands of students achieve academic success.

RECORD 0117PHD · CS

A thesis runs to hundreds of references and checking them by hand is unrealistic. EssayTone verified my whole bibliography in one batch and caught several citations that did not exist at all. It saved me from being caught by my own reviewers.

Petar K.

Doctoral candidate

Artificial intelligence

RECORD 0342PROFESSOR · EE

I run every student submission through it. Within minutes it surfaces citations that don't hold up or are outright fabricated. In an age where AI writing is everywhere, this kind of verification is how I uphold rigor without burning evenings on it.

R. Genzel

Professor

Chip design automation

RECORD 0951EDITOR · MED

As a journal editor, citation fraud is the hardest thing to catch by hand across a huge submission volume. EssayTone lets me filter out manuscripts with bogus references at first screening. It's now standard equipment in our editorial office.

E. Hayes

Journal editor

Cardiology

50K+

Scholars

10M+

References checked

99.7%

First-pass accuracy

4.9/5

User rating

Your Questions, Answered

See how AcademicWrite has helped thousands of students achieve academic success.

Your reviewers will check.
Beat them to it.

Paste your reference list and get a stamped verdict on every entry in under ten seconds. 30 checks a day, free forever.

Check my references
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