LogoMaker Viewer

A browser-based GUI for the logomaker Python package.
Upload a multiple sequence alignment (FASTA, GenBank, Clustal, Stockholm) and interactively generate publication-quality sequence logos — no command line required.

Features

• Drag-and-drop upload — FASTA, GenBank, Clustal, Stockholm alignments
• Click-to-recolour — click any residue on the rendered logo to open a colour picker for that character
• Full logomaker control — matrix type, colour scheme, font, stack order, fade/shade, vpad, vsep, and more
• Live character palette — see and edit all character colours at a glance
• Export — download as PNG, SVG, or PDF at any DPI

Installation

pip install logomaker-viewer

Or into a fresh conda environment:

conda create -n logomaker-viewer python=3.11
conda activate logomaker-viewer
pip install logomaker-viewer

Usage

logomaker-viewer

This starts a local web server and opens http://127.0.0.1:5000 in your browser automatically.

Options

logomaker-viewer --port 8080        # use a different port
logomaker-viewer --no-browser       # don't auto-open browser
logomaker-viewer --host 0.0.0.0    # expose on local network
logomaker-viewer --debug            # Flask debug mode

Supported file formats

All sequences in the file must be the same length (i.e. a true multiple sequence alignment).

Development

git clone https://github.com/YOUR_USERNAME/logomaker-viewer.git
cd logomaker-viewer
pip install -e ".[dev]"
python -m logomaker_viewer.cli

Credits

Sequence logos are rendered by logomaker (Tareen & Kinney, 2020).

License

MIT