Install vsearch with Homebrew, apt

Project links

• Homepage
• Upstream docs
• Package manager page

Commands and aliases

• vsearch

Project history

The first public VSEARCH release was version 1.0.0 on 2014-11-28. The authors and maintainers subsequently expanded it from a USEARCH-compatible sequence-searching and clustering tool into a broad toolkit covering chimera detection, clustering, dereplication, rereplication, reverse complementation, masking, all-vs-all pairwise global alignment, exact and global alignment search, shuffling, subsampling, sorting, and FASTQ processing.

The project was described formally in the 2016 PeerJ article by Torbjorn Rognes, Tomas Flouri, Ben Nichols, Christopher Quince, and Frederic Mahe. Its manual and citation material continue to point users to that paper, and the official documentation records continued releases through VSEARCH 2.31.0 on 2026-04-29.

Adoption history

VSEARCH gained its role in bioinformatics partly by tracking familiar USEARCH workflows while removing licensing and memory-size barriers. The documentation also records ecosystem-oriented changes, such as Debian compatibility patches in 2015, pipe-friendly behavior in the 2.0.0 series, and OTU table output options in 2.2.0 for BIOM, mothur shared files, and classic OTU tables.

The official wiki positions VSEARCH as a tool with its own documentation ecosystem, including examples, pipeline pages, feature background, and a web forum. That matters in microbiome analysis because command-line reproducibility and transparent algorithms are central to how pipelines are shared, reviewed, and rerun.

How it is used

VSEARCH is typically used as a pipeline component for amplicon and metagenomic sequence processing: filtering reads, dereplicating sequences, merging paired-end reads, detecting chimeras, clustering sequences, searching against reference databases, and producing downstream tables. Its command reference is organized around these biological workflow stages rather than a single monolithic command.

For package and workflow maintainers, VSEARCH is significant because it provides a scriptable, redistributable substitute for USEARCH-like operations. The combination of open licensing, 64-bit operation, multithreading, compressed-input handling, pipe support, and mature manual pages made it easier to place in reproducible Unix-style analysis workflows.

Why package nerds care

VSEARCH is the kind of scientific CLI that package managers preserve because it turns a research-method dependency into a normal, inspectable Unix executable. Its value is not just the algorithms, but the fact that microbiome pipelines can depend on a freely redistributable command with documented options and a citable upstream paper.

Timeline

• 2014-11-28: VSEARCH 1.0.0 was released as the first public release.
• 2015-02-19: Version 1.0.16 integrated Debian patches for compatibility across architectures.
• 2016: The VSEARCH paper was published in PeerJ as 'VSEARCH: a versatile open source tool for metagenomics.'
• 2016-06-24: Version 2.0.0 added pipe-oriented behavior and compressed input handling changes.
• 2016-10-07: Version 2.2.0 added OTU table output options for clustering and searching.
• 2026-04-29: Version 2.31.0 appeared in the official version history.

Related projects

• USEARCH is the proprietary tool VSEARCH was designed to replace or emulate for many workflows.
• The official VSEARCH documentation also points users toward related tools such as Swarm and SWIPE.

Sources

• GitHub README: https://github.com/torognes/vsearch
• Official manual and command reference: https://torognes.github.io/vsearch/
• Official wiki: https://github.com/torognes/vsearch/wiki
• PeerJ citation DOI listed by upstream: https://doi.org/10.7717/peerj.2584