BibTeX Validator
Check BibTeX entries for syntax errors, missing required fields, and formatting issues. Free, with no sign-up required.
Paste BibTeX
Paste your entries or upload a .bib file (maximum 500 KB).
About the BibTeX validator
This validator checks bibliography entries for missing required fields, syntax issues, and formatting problems. It supports entry types such as @article, @book, @inproceedings, @incollection, @inbook, @phdthesis, @mastersthesis, @techreport, and @misc.
Required fields depend on entry type. For example, @article requires author, title, journal, and year. Errors identify missing required information; warnings suggest recommended fields such as DOI or pages.
BibTeX syntax validation does not establish whether a cited work exists or whether its details match a publication. Use citation verification for those separate checks.
Check publication evidence
Valid BibTeX syntax is a separate question from whether the references match published works.