# Open-Source Tools by DNAnexus Scientists

This page is a list of open-source tools developed by the DNAnexus science team.

* [GLnexus](https://github.com/dnanexus-rnd/GLnexus): Scalable gVCF merging and joint variant calling for population sequencing projects. See also BioRxiv article [GLnexus: joint variant calling for large cohort sequencing](https://www.biorxiv.org/content/10.1101/343970v1).
* [IndexTools](https://github.com/dnanexus/IndexTools): A toolkit for fast NGS analysis based on index files.