Better BibTeX (BBT) is an extension for Zotero and (in principle) Juris-M that makes it easier to manage bibliographic data, especially for people authoring documents using text-based toolchains (e.g. based on LaTeX / Markdown).
With the advent of Zotero 8, items have a Zotero-native citation key field. This has replaced the BBT citation key field.
This has caused a few somewhat disruptive changes:
extra field into the native fieldUpside to all of this is that keys will sync.
If key migration appears to have failed, YOUR CITATION KEYS ARE SAFE.
Make sure you are on the latest version. For the first 5 minutes after BBT start, the Help menu will have an option Re-do BBT citation key migration. Click that, generate a debug log from the Help menu, then open an issue on github noting the debug log ID.
It is a known problem that read-only groups do not have citation keys. I am working on a fix
Zotero does all its work in UTF-8 Unicode, which is absolutely the right thing to do. Unfortunately, for those shackled to BibTeX and who cannot (yet) move to BibLaTeX, unicode is a major PITA. Also, Zotero supports some simple HTML markup in your items that Bib(La)TeX won't understand.
BBT will convert from/to HTML/LaTeX:
<i>...</i>⇔\emph{...}/\mkbibemph{...}/\textit{...}
<b>...</b>⇔\textbf{...}<sup>...</sup>⇔\textsuperscript{...} and <sub>...</sub>⇔\textsubscript{...}. More can be added on request.
BBT contains a comprehensive list of LaTeX constructs, so stuff like \"{o} or \"o will be converted to their unicode equivalents on import (e.g., \"{o} to ö), and their unicode equivalents back to \"{o} if you have that option enabled (but you don't have to if you use BibLaTeX, which has fairly good Unicode support).
If you need literal LaTeX in your export: surround it with <script>...</script> (or <pre>...</pre>, which do the same) markers.
To get started, read the installation instructions.
At its core, BBT behaves like any Zotero import/export module; anywhere you can export or import bibliography items in Zotero, you'll find Better X listed among the choices.
If nothing else, you could keep your existing workflow as-is, and just enjoy the improved LaTeX ↔ unicode translation on import and export and more accurate field mapping.
Better BibTeX works from BibTeXing and Tame the BeaST for BibTeX, and The BibLaTeX Package for BibLaTeX, but since there isn't really a definitive manual for either format that is universally followed by Bib(La)TeX editors/processors, I'm pragmatic about implementing what works.
If you have any questions on BBT's use, do not hesitate to file a GitHub issue and ask for help.
If you're reporting a bug in BBT, please take a moment to glance through the support request guidelines; it will make sure I get your problem fixed as quick as possible. Clear bug reports commonly have really short time-to-fix, so if you report something, stick around -- it may be done as you wait.
The support request guidelines are very detailed, perhaps to the point of being off-putting, but please do not fret; these guidelines simply express my ideal bug submission. I of course prefer very clearly documented issue reports over fuzzy ones, but I prefer fuzzy ones over missed ones.
While the development needs of BBT are to a large extent covered by the generosity towards open-source developers of services such as github, my development system does require the occasional upgrade; also, I enjoy getting the occasional frivolous tech-toy that I wouldn't otherwise grant myself. While you should feel in no way obligated to pay for BBT, anything you can spare is very much appreciated. If you'd rather contribute a little bit each month (and a little means a lot) so I can save up for a replacement a year or so down the line, head on over to Patreon, but mind that Patreon takes a fairly large cut of what you give.
Many, many thanks, also to the existing contributors -- thanks to you I've hit my first target and have been able to replace my trusty macbook air with a newer macbook pro which has much more breathing room.
I prefer communicating via github issues, but for private information you can reach me on matrix
$ claude mcp add zotero-better-bibtex \
-- python -m otcore.mcp_server <graph>