Filename extensions.nexml
Internet media typetext/x-nexml+xml
Developed byRutger A. Vos, et al.
Initial release1 July 2012 (11 years ago) (2012-07-01)
Type of formatbioinformatics
Extended fromXML
Open format?Yes

NeXML is an exchange standard for representing phyloinformatic data.[1] It was inspired by the widely used Nexus file format but uses XML to produce a more robust format for rich phylogenetic data. Advantages include syntax validation, semantic annotation, and web services. The format is broadly supported and has libraries in many popular programming languages for bioinformatics.


  1. ^ Vos, Rutger A.; Balhoff, James P.; Caravas, Jason A.; Holder, Mark T.; Lapp, Hilmar; Maddison, Wayne P.; Midford, Peter E.; Priyam, Anurag; Sukumaran, Jeet (2012-07-01). "NeXML: Rich, Extensible, and Verifiable Representation of Comparative Data and Metadata". Systematic Biology. 61 (4): 675–689. doi:10.1093/sysbio/sys025. ISSN 1063-5157. PMC 3376374. PMID 22357728.