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A wrapper around WireViz for bringing it to the web. Easily document cables and wiring harnesses.

Project description


WireViz-Web is a wrapper around the excellent WireViz by Daniel Rojas for bringing it to the web.

Originally, it has been conceived within a WireViz fork by Jürgen Key. For compatibility with PlantUML, it includes a PlantUML Text Encoding format decoder by Dyno Fu and Rudi Yardley.




WireViz is a tool for easily documenting cables, wiring harnesses and connector pinouts. It takes plain text, YAML-formatted files as input and produces beautiful graphical output (SVG, PNG, …) thanks to Graphviz. It handles automatic BOM (Bill of Materials) creation and has a lot of extra features.


WireViz-Web wraps WireViz with a REST API using Flask. It also provides specific rendering endpoints for PlantUML.


Install prerequisites:

{apt,brew,dnf,yum,zypper} install python3 graphviz

Install package:

pip install wireviz-web


Run server:


Invoke requests:

# Acquire WireViz YAML file.

# Render images.
http --form http://localhost:3005/render yml_file@demo01.yaml Accept:image/svg+xml
http --form http://localhost:3005/render yml_file@demo01.yaml Accept:image/png

# Render HTML page with SVG image and BOM table.
http --form http://localhost:3005/render yml_file@demo01.yaml Accept:text/html

# Render BOM in TSV format.
http --form http://localhost:3005/render yml_file@demo01.yaml Accept:text/plain

# Render BOM in JSON format.
http --form http://localhost:3005/render yml_file@demo01.yaml Accept:application/json

# Render a PlantUML request.
http http://localhost:3005/plantuml/svg/SyfFKj2rKt3CoKnELR1Io4ZDoSa700==
http http://localhost:3005/plantuml/png/SyfFKj2rKt3CoKnELR1Io4ZDoSa700==

For visiting the Swagger OpenAPI spec, go to http://localhost:3005/doc.

Project information


Every kind of contribution, feedback, or patch, is much welcome. Create an issue or submit a patch if you think we should include a new feature, or to report or fix a bug.

In order to follow the general development discussion, please see Bringing WireViz to the Web.


In order to setup a development environment on your workstation, please head over to the development sandbox documentation. When you see the software tests succeed, you should be ready to start hacking.



The project is licensed under the terms of the GNU AGPL license.

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