In early 2020 we are planning to remove all data other than for human from this archive website. If you think this will impact you please read our blog post for full details.

EnsemblEnsembl Home

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 joint project between EMBL-EBI and the Wellcome Trust Sanger Institute to develop a software system which produces and maintains automatic annotation on selected eukaryotic genomes.