Help & Documentation

Using this website

Our website offers lots of ways to view and interact with our genomic data - find out more!


Annotation & Prediction

various speciesThe Ensembl project produces genome databases for vertebrates and other eukaryotic species, and makes this information freely available online.


Data access

db serverAll of our data is open-access and can be downloaded free of charge (disclaimer). Ways to access this data include:


API & Software

Powered by Perl Ensembl releases all its software under an Apache-style open source licence. Our products include:


Additional software packages, including external contributions, are listed in our Ensembl e!code directory.

About us

Ensembl is a project to develop a software system which produces and maintains automatic annotation on selected eukaryotic genomes.