Bioinformatics

Bandage – visualising de novo assembly graphs

Bandage is a program for visualising de novo assembly graphs.

By displaying connections which are not present in the contigs file, Bandage opens up new possibilities for analysing de novo assemblies.

This is free and open source software.

Key Features

  • Load multiple assembly graph formats: LastGraph (Velvet), FASTG (SPAdes), Trinity.fasta, ASQG and GFA.
  • Position nodes automatically with an efficient graph layout algorithm.
  • Zoom, pan and rotate the view using either mouse or keyboard controls.
  • Reposition and reshape nodes by clicking and dragging with the mouse.
  • Configure graph scope: view the entire assembly graph or only a region of interest.
  • Copy node sequences to the clipboard or save them to file.
  • Colour nodes using built-in colour schemes or user-defined colours.
  • Label nodes using node number, length, coverage or user-defined labels.
  • Find nodes quickly in a large graph using node numbers.
  • Specify the thickness of nodes and allow thickness to reflect the node’s read depth.
  • Define the relationship between the length of a node and the length of its sequence.
  • Draw graph in single node style: each node and its reverse complements appear as a single object.
  • Draw graph in double node style: nodes and their reverse complements appear as separate objects with arrow heads to indicate direction.
  • Highlight and label specific sequences with integrated BLAST search.
  • Automatically identify nodes contiguous with a node of interest.
  • Call Bandage from the command line to specify settings, load graphs or generate images.
  • Cross-platform support – runs under Linux, macOS, and Windows.

Website: rrwick.github.io/Bandage
Support: GitHub Code Repository
Developer: Ryan Wick
License: GNU General Public License v3.0

Bandage in action

Bandage is written in C++. Learn C++ with our recommended free books and free tutorials.


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Read our verdict in the software roundup.


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