Download BLAST Software and Databases

BLAST+ executables

BLAST+ is a suite of command-line tools to run BLAST. For details, please see the BLAST+ user manual, the BLAST Help manual, the BLAST releases notes, and the article in BMC Bioinformatics (PubMed link). BLAST+ is the most current version of BLAST and is the only supported version.

Installers and source code are available from .

See our versioning policy.

The BLAST+ suite is the currently supported package. The older C toolkit executables are no longer supported.


Magic-BLAST is a tool for mapping large next-generation RNA or DNA sequencing runs against a whole genome or transcriptome. Read more about Magic-BLAST at

Installers and source code are available from


IgBLAST facilitates the analysis of immunoglobulin and T cell receptor variable domain sequences. For details please see the documentation at and the article in Nucleic Acids Research (

Installers and source code are available from


SRPRISM is a short read alignment tool that works with genomic sequences and handles alternative loci. For more information, see A LINUX executable is available under


BLAST databases are updated daily and may be downloaded via FTP from Database sets may be retrieved automatically with, which is part of the BLAST+ suite. Please refer to the BLAST database documentation for more details.