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 ftp://ftp.ncbi.nlm.nih.gov/blast/executables/blast+/LATEST/ .

See our versioning policy.

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

Magic-BLAST

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 https://ncbi.github.io/magicblast.

Installers and source code are available from ftp://ftp.ncbi.nlm.nih.gov/blast/executables/magicblast/LATEST.

IgBLAST

IgBLAST facilitates the analysis of immunoglobulin and T cell receptor variable domain sequences. For details please see the documentation at https://ncbi.github.io/igblast/ and the article in Nucleic Acids Research (https://www.ncbi.nlm.nih.gov/pubmed/23671333).

Installers and source code are available from ftp://ftp.ncbi.nih.gov/blast/executables/igblast/release/LATEST.

SRPRISM

SRPRISM is a short read alignment tool that works with genomic sequences and handles alternative loci. For more information, see ftp://ftp.ncbi.nlm.nih.gov/pub/agarwala/srprism/README. A LINUX executable is available under ftp://ftp.ncbi.nlm.nih.gov/pub/agarwala/srprism

Databases

BLAST databases are updated daily and may be downloaded via FTP from ftp://ftp.ncbi.nlm.nih.gov/blast/db/. Database sets may be retrieved automatically with update_blastdb.pl, which is part of the BLAST+ suite. Please refer to the BLAST database documentation for more details.