Welcome to iTOL!
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Recent changes
Version 1.8.1
- protein IDs/ACCs (Uniprot and NCBI) supported in the automatic NCBI tree generator
Version 1.8
- new tree display mode: unrooted
- branches can be automatically colored based on bootstrap values
Version 1.7.1
- text label colors can be defined
Version 1.7
- new dataset type: boxplot
- individual fileds in multi-value barchart datasets can be automatically aligned
- PhyloXML tree format supported for upload and export
- Automatic NCBI tree generator expanded with support for scientific names and subtrees
Version 1.6.1
- color ranges and clade colors can be defined during upload
- heatmap legends displayed
- option to prevent overlap of color strips and gradients with other datasets
Version 1.6
- Batch access through a simple API. Both tree upload and export are supported.
Version 1.5
- new dataset type: heatmaps
Version 1.4.1
- leaf labels can be aligned in both modes
- color ranges expandable to whole clades
- maximum bar and protein size increased to 5000 pixels
Version 1.4
Version 1.3.2
- protein domain datasets are now auto scaled; protein size is not limited
- 5 new domain shapes available
Interactive Tree Of Life is an online tool for the display and manipulation of phylogenetic trees. It provides most of the features available in other tree viewers, and offers a novel circular tree layout, which makes it easy to visualize mid-sized trees (up to several thousand leaves). Trees can be exported to several graphical formats, both bitmap and vector based. more...
There are several pre-computed trees available for display, including the main Tree Of Life, described in Ciccarelli, et al., 2006. In addition to the precomputed trees, you can upload and display your own trees and data, using the 'Data upload' page or through your personal user account.
Use the tabs on the top of the page to navigate or click the trees below to proceed to the interactive pages. Extensive help pages, which provide detailed explanation of iTOL's interface and functions, are available. For further questions, comments or suggestions, please contact us.
If you find iTOL useful in your work, you can cite Letunic and Bork, 2006.
With version 1.8.1, we have further expanded the functionality of our NCBI taxonomy based automatic tree generator. In addition to taxonomy IDs or scientific names, you can now generate the trees using Uniprot or NCBI protein accession numbers or IDs. As always, remember that these trees simply represent pruned versions of NCBI taxonomy, nothing more. NO proper phylogenetic tree reconstruction methods are used in their creation.
