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The Visualization and Analysis
of Microbial Population Structures

This site uses taxonomic assignment for visualization (use OTUs instead).

March 29, 2020

  • This version of VAMPS is being phased out in favor of the new re-write of the VAMPS code which is located at
  • Your account credentials are the same on both sites.
  • The php code from this site is no longer being maintained and the sequence data is not updated as frequently as the new site so you may find slight differences in the data as well.

  • VAMPS is an integrated collection of tools for researchers to visualize and analyze data for microbial population structures and distributions. For more information on the VAMPS project, visit our VAMPS Overview page.

    There are two essential elements to VAMPS:

    • Visualization and Analysis - Community Visualization including heat maps and comparative pie charts, as well as diversity estimates, rarefaction curves and spreadsheet-style output provide researchers with analytical tools for assessing individual microbial populations, based on either taxonomic assignments or independently-derived operational taxonomic units (OTUs).

    • Data Ramp - Researchers who want to use the VAMPS tools with their own data can enter their sequence or taxonomy data to the VAMPS website and merge it with the existing shared datasets for individual or comparative analyses. Researchers will be given a user name and password, and their data will be visible only to registered users of their choice.

    Please see our Updates page for recent changes.

    Register for an account on our New VAMPS site.

    The account credentials will give access to both Original VAMPS (this site) and New VAMPS (

    If you use VAMPS in a publication, please cite:
    Huse SM, Mark Welch DB, Voorhis A, Shipunova A, Morrison HG, et al. (2014) VAMPS: a website for visualization and analysis of microbial population structures. BMC Bioinformatics 15: 41.