Banyan is a set of tools for working with large amounts of sequence, mutation, and phylogenetic tree data, currently focused on SARS‑CoV‑2.
The tools grew out of an initial pilot project that made it possible to query and display millions of sequences in the entire GISAID data set from within the browser.
The current tools range from simple auto-generated reports (the New England Variant Report) to small single-use tools (Mutations, Crosscut), to backend systems (a custom server and Python API) that make the tools possible.