Paste DNA or protein sequences in FASTA. Unaligned input is aligned first with the same MUSCLE-JS engine as the MSA tool; already-aligned input is used as given. A distance matrix is then corrected for multiple substitutions and turned into a tree by neighbour-joining or UPGMA, optionally with bootstrap support.
Distance-based inference (Saitou & Nei 1987; Felsenstein 1985 bootstrap). Everything runs in your browser — no sequence leaves the device.
FASTA — aligned or unaligned, DNA or protein — or a Newick string to load an existing tree.
Load example:
Selected: click a node in the tree
Export:
Inference parameters
Need details? Methods, models and export formats are documented in Help: Phylogenetic Tree.