Phylogenetic tree (newick) viewer

This is an online tool for phylogenetic tree view (newick format) that allows multiple sequence alignments to be shown together with the trees (fasta format). It uses the tree drawing engine implemented in the ETE toolkit, and offers transparent integration with the NCBI taxonomy database. Currently, alignments can be displayed in condensed or block-based format. Leaf names in the newick tree should match those in the fasta alignment.

When pressing "View Tree", a permanent link to your data will also be provided. You can use the link for sharing your images.

Tip: Use NCBI numeric taxids as leaf names (or in the format TaxID.sequenceName) to get on-the-fly translation of species names and lineages.

Paste your tree in newick format:
Or upload a newick file:
Paste your alignment in fasta format:
Or upload a fasta file:

Alignment image type: - Resolve taxonomic ids

Support values are shown in red.
(Loading big trees/algs may take a few seconds)