BiasViz is a small Java applet that can be used to visualize multiple sequence alignments and look for amino acid bias.
Homepage: http://matthuska.github.io/biasviz/
Development: http://github.com/matthuska/biasviz
To run BiasViz you will need to first retrieve the source code. One way to do this is to clone the repository using git:
$ git clone https://github.com/matthuska/biasviz.git
$ cd biasviz
BiasViz requires Apache Ant and Java 1.5 or greater. If you happen to use conda, you can easily install these by creating the provided conda environment:
$ conda env create -f environment.yml
$ conda activate biasviz
Then, to build and start BiasViz, you run the following from the biasviz directory:
$ ant run
This should build BiasViz, and pop up a window with the application in it.
There are are other options for building BiasViz, you can see these by running
ant -p.