Warning: The NCBI web site requires JavaScript to function. more...

U.S. flag

An official website of the United States government

Dot gov

The .gov means it's official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you're on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

NCBI

National Center for Biotechnology Information

How to: Download NCBI Software

Starting with the software program of interest...

BLAST (aligns nucleotide and protein sequences)
NCBI ToolBox (C/C++ source code for NCBI software)
Cn3D (3D structure viewer and alignment editor)
e-PCR (finds sequence tagged sites in DNA sequences)
Splign (aligns transcripts to genomic DNA)

If the software you need is not listed above, search the NCBI Web Site database with the name of the software, then click on the desired result to navigate to the home page of the tool where there will be links to download the tool (if available).