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BioSequences provides data types and methods for common operations with biological sequences, including DNA, RNA, and amino acid sequences. It also provides I/O for common sequence file formats including FASTA, FASTQ, 2bit and more.


BioSequences is bundled into the Bio.jl package, so you may not need to install this package explicitly. However, if you do, you can install BioSequences from the Julia REPL:

using Pkg
#Pkg.add("BioSequences") for julia prior to v0.7

If you are interested in the cutting edge of the development, please check out the master branch to try new features before release.


BioSequences is tested against Julia 0.7 and current 1.X. on Linux, OS X, and Windows.

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We appreciate contributions from users including reporting bugs, fixing issues, improving performance and adding new features.

Take a look at the CONTRIBUTING file provided with every BioJulia package package for detailed contributor and maintainer guidelines.

Financial contributions

We also welcome financial contributions in full transparency on our open collective. Anyone can file an expense. If the expense makes sense for the development of the community, it will be "merged" in the ledger of our open collective by the core contributors and the person who filed the expense will be reimbursed.

Backers & Sponsors

Thank you to all our backers and sponsors!

Love our work and community? Become a backer.


Does your company use BioJulia? Help keep BioJulia feature rich and healthy by sponsoring the project Your logo will show up here with a link to your website.


If you have a question about contributing or using BioJulia software, come on over and chat to us on Discord, or you can try the Bio category of the Julia discourse site.