BibTeX Tools in your browser

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Files and settings

Bib files

or drop them anywhere, or press Ctrl+V

LaTeX files

from your document

Keep only the entries cited in a .bbl file

Expand @string abbreviations

e.g., IEEEabbr.bib

Output for

biblatex BibTeX

Duplicates

Keep both Remove shorter Choose

Fields

Convert to biblatex fields

What it changes, and why

Uses the names of biblatex. biber reads the BibTeX names as well, so nothing is lost without this.

Entry types

@phdthesis → @thesis with type = {phdthesis}, and @mastersthesis → @thesis with type = {mathesis}

biblatex has one type for theses, and the type field says which kind. It prints the kind in the language of the document.
@techreport → @report with type = {techreport}

biblatex has one type for reports, and the type field says which kind.
@conference → @inproceedings

@conference is an old name for @inproceedings.
@electronic, @www → @online

biblatex calls web pages and other online sources @online.

Fields

journal → journaltitle, address → location, school → institution, annote → annotation, archivePrefix → eprinttype, primaryClass → eprintclass

These are the biblatex names. biber also reads the old names, so this only makes your file use one kind of names.

A type field that is already set is kept. A field is not renamed if the entry already has the new name.

Uses the names that BibTeX reads. BibTeX ignores the biblatex names, so without this, their information is missing in the bibliography.

Entry types

@thesis → @phdthesis or @mastersthesis

BibTeX has no @thesis. With type = {mathesis}, it becomes @mastersthesis. Others become @phdthesis and keep their type field, which BibTeX styles print instead of “PhD thesis”.
@report → @techreport

BibTeX has no @report. Its type field is kept, unless it is techreport.
@online, @electronic, @www, @dataset, @software → @misc

BibTeX styles do not know these types, and print such entries like @misc anyway, with a warning.
@collection, @mvbook, @mvcollection, @reference → @book

BibTeX has none of these types. @book can have an editor instead of an author.
@inreference → @incollection

BibTeX has no @inreference, which is a part of a reference work.

Fields

institution → school, in theses

BibTeX styles take the university of a thesis from school.
date → year and month

BibTeX styles have no date field, and read year and month instead, e.g., month = jul. A range of dates, and a date with another year than the year field, are kept.
journaltitle → journal, location → address, annotation → annote

BibTeX styles ignore these biblatex names, so the journal, the place, and the annotation would be missing in the bibliography.
eprinttype → archivePrefix, eprintclass → primaryClass

BibTeX styles that show arXiv IDs read archivePrefix and primaryClass.

A field is not renamed if the entry already has the new name.

Use en dashes in page ranges

E.g., 17-61 → 17--61

Write months as numbers

E.g., jul → 7

Write names as “Last, First”

E.g., Paul Erdős → Erdős, Paul

Abbreviate journal names (ISO 4)

E.g., Physical Review → Phys. Rev.

Convert special characters to LaTeX

E.g., ä → {\"a} and & → \&

Titles

Keep Acronyms Whole title

Conference abbreviations

Keep Remove

arXiv and eprints

Keep @misc, eprint @article, journal

Remove “arXiv:” from eprints

E.g., arXiv:2009.09852 → 2009.09852

Look up arXiv categories online

E.g., adds primaryClass = {cs.IT}

Keys

Rename duplicate keys

E.g., two entries key → key and key:b

Generate keys from author, year, and title

E.g., Shannon1948mathematical

Remove fields

Drop your `.bib` files here

Choose the settings and see the result next to the original, before you download it.

You can also paste anywhere on this page with Ctrl+V.

Your files never leave your computer. Everything runs in your browser.

A web version of bibtex-tools by Karl-Ludwig Besser (klb2).

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Web version of klb2/bibtex-tools · Source ·

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About BibTeX Tools

This is a web version of bibtex-tools, a collection of tools for cleaning up BibTeX files for biblatex, developed by Karl-Ludwig Besser (klb2). All the cleaning is done by his Python code, which runs right in your browser.

klb2/bibtex-toolsThe original command line tool by Karl-Ludwig Besser Ostpopcorn/bibtex-toolsThe code of this web version by Ostpopcorn

Like the original, this web version is free software under the GNU General Public License v3. It runs Python in your browser with Pyodide (MPL-2.0), which includes the Python standard library (PSF License), and uses bibtexparser (LGPL-3.0 or BSD), pyiso4 (MIT), pyparsing (MIT), Unidecode (GPL-2.0 or later), click (BSD-3-Clause), and feedparser (BSD-2-Clause) with feedparser-sgmllib (PSF-2.0).

The title uses the font Parisienne by Astigmatic under the SIL Open Font License 1.1.

Duplicate entries

Both entries seem to be the same work. Choose the one to remove, or keep both.

cited

cited

Paste BibTeX

Look up arXiv categories online?

This setting uses the internet. To add the primary category of your preprints, e.g., cs.IT, BibTeX Tools asks the public API of arXiv at export.arxiv.org.

Only the arXiv IDs of your entries, e.g., 2009.09852, are sent. Like any website, arXiv also sees your IP address. Your files and everything else stay in your browser.

Conference abbreviations

Some conference papers have an abbreviation of their conference, e.g., (NeurIPS), and some do not. Click a key to show its entry.

Reset all settings?

All settings go back to their defaults. Your files stay open.