Upload a GenBank (.gbk) file from Phold, tweak your options and click Run. This will run phold plot.
For more details about the parameters, please see phold's documentation.
You can also try the Example button for a pre-loaded example phage. phold plot is run client-side using Wasm (WebAssembly) with Pyodide (Biopython + pyCirclize + matplotlib): no data leaves your machine.
If you encounter any problems, please leave an issue on GitHub.
Pyodide will be loaded on demand when you click Run.