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Paste names, NCBI taxids, or full lineage strings (QIIME2 / DADA2 / MetaPhlAn style — we strip s__ prefixes and semicolon separators). Get the current name in each database, with a flag where GTDB splits 1→many.
Looking across 96,917 bacterial & archaeal species · 38,528 NCBI binomials · 249,577 reverse-indexed names (GTDB + SILVA + GG2 + eHOMD)
Don't want to paste anything? ↓ Download the whole table as TSV — all 96,917 taxa, ~7.5 MB, current releases (R232 · 138.2 · 2024.09 · 4.2). Not your search — the entire dataset.
How matching works. Numeric input is tried as NCBI taxid (retired taxids follow NCBI's merged.dmp redirect; deleted taxids are flagged). Non-numeric is parsed as Genus + species and looked up against NCBI's scientific names + synonyms + equivalent names first. If nothing matches there, the same name is tried against GTDB, then SILVA, then Greengenes2, then eHOMD — the badge in each row tells you which source resolved it. A name that NCBI gives to more than one taxon is not resolved at all: the row says “ambiguous” and lists the taxa it could mean, so you can paste the taxid you want.
Verify any row. Cells with an underlined name link out to the source database's record for that taxon. We're a router, not the source of truth — click through to confirm.