EndNote does have an “Export BibTeX” filter, but it doesn’t seem to generate satisfactory BibTeX files. After some googling, I found Bevan Weir’s customised export filter, which does a much better job than EndNote’s default. I modified his filter file a little bit more, and was able to convert an EndNote bibliography library to BibTeX with the following steps.
I tested this with EndNote X5 on the Mac, with JabRef 2.7, but they should also work with Windows versions.
%ENDNOTE% refers to the path where EndNote is installed on your system.- Put
BibTeX_Export_LLT.ens(download) in%ENDNOTE%/Styles/. - Start EndNotes, and load your library.
- Make sure the new style is listed:
Edit > Output Styles > Open Style Manager
Make sureBibTeX_Export_LLTis checked. - File > Export
Make sure Save File as Type is set to Text Only, and Output Style is set toBibTeX_Export_LLT. - Save your file and check that it has a
.bibextension. - Open the exported
.bibin JabRef. There will be a whole bunch of errors about corrupted or empty BibTeX keys; don’t worry. Just click OK. -
Ctrl+Ato select all the BibTeX entreis, Tools > Autogenerate BibTeX keys. - Check through the BibTeX entries, especially those highlighted red, to check and correct any crucial information loss.
And hopefully the converted bibliography file is now usable enough.

