Viewer Guide

ProtoML now has two viewer paths: the Electron-based protoviewer and the browser-based independent viewer in web/index.html.

Independent browser viewer

The browser viewer gives you an editor, local file upload, drag-and-drop loading, in-browser preview, and HTML export without requiring Electron.

npm run build:web
protoparser viewer
protoparser viewer app "./meeting.pml"
protowebviewer "./meeting.pml"

Start the viewer

protoviewer "test.pml"
protoviewer "test.pml" dark

This is the fastest way to inspect the rendered shape of a document while you are still editing the source.

When to use the viewer vs. CLI rendering

Use the browser viewer when you want an independent, cross-platform local workspace
Use protoviewer for immediate local review
Use protoparser ... html|pdf|json|markdown|text when you need export files or automation

Typical workflow

Edit the .pml file
Open it in protoviewer for local review
Use protoparser when you need distributable output

Limits

The viewer is a local GUI tool, not a publishing pipeline
It complements the CLI, but does not replace export or analysis commands
The browser viewer works from source text or uploaded files, not direct arbitrary filesystem path access

Related guides