Paste a Newick string or type a list of species. The phylogenetic tree generator renders a rectangular phylogram you can export as SVG or PNG — ready for journals, presentations, and coursework.
The phylogenetic tree generator parses standard Newick format — with or without branch lengths, internal node names, and quoted labels. Paste the output from MEGA, RAxML, IQ-TREE, or any phylogenetics pipeline and see the tree rendered instantly. No file upload, no format conversion: one text box, one result.
Not every tree starts from a multiple sequence alignment. Switch to species-list mode, type or paste one taxon per line, and the phylogenetic tree maker builds a balanced cladogram automatically. Useful for teaching materials, classification overviews, and quick visual drafts before running a formal analysis.
Four trees produced by the same phylogenetic tree generator, each representing a different scale of life — from primate species to bacterial strains.
Ten primate species arranged in a rectangular phylogram with proportional branch lengths reflecting molecular divergence estimates. Great apes cluster as expected, with New World monkeys as the outgroup.
A compact phylogenetic tree of respiratory virus variants built from a Newick string exported by Nextstrain. Short branch lengths reflect the rapid mutation rate typical of RNA viruses.
Major flowering-plant families organized into a cladogram using the species-list input mode. No branch lengths — purely topological, suitable for a botany lecture handout.
A phylogenetic tree of environmental bacterial isolates built from 16S rRNA gene sequences. Branch lengths correspond to nucleotide substitutions per site, with a scale bar for reference.
A phylogenetic tree is a branching diagram that depicts the evolutionary relationships among biological entities — species, genes, or populations. Each fork represents a common ancestor, and the pattern of branching reflects hypotheses about how lineages diverged over time. Phylogenetic trees are central to comparative biology, epidemiology, and conservation planning.
Trees are typically inferred from molecular data (DNA, RNA, or protein sequences) using methods such as maximum likelihood, Bayesian inference, or neighbor-joining. The result is usually stored in Newick format — a nested-parenthesis text notation that encodes topology and, optionally, branch lengths proportional to evolutionary distance.
A phylogenetic tree generator takes that Newick string and converts it into a visual diagram suitable for publication or teaching. This tool renders rectangular phylograms — the most common layout in peer-reviewed literature — with optional branch-length annotations and a scale bar.
Both show evolutionary relationships, but a phylogenetic tree and a cladogram differ in what the branch lengths represent — and when to use each one.
Branch lengths proportional to evolutionary distance
Branch lengths uniform — topology only
Four steps from raw data to a finished figure — no software installation required.
Copy the Newick string from your phylogenetics software (MEGA, RAxML, IQ-TREE, MrBayes) and paste it into the text box. If you just need a quick cladogram, switch to species-list mode and type one taxon per line.
Toggle branch-length labels on or off, and set the font size for leaf names. The preview updates in real time so you can experiment without re-exporting.
The rectangular phylogram appears to the right of the input panel. Scroll if the tree has many taxa. What you see is exactly what the export will contain — no surprises.
Click Download SVG for a vector file you can edit in Illustrator or Inkscape. Click Download PNG for a 2× resolution raster ready for slides, posters, or supplementary materials.
Common questions about phylogenetic trees and how to generate them with this tool.
Paste a Newick string or type a species list, adjust the display, and download a publication-ready phylogenetic tree — no installation, no sign-up.