jupyterlab-drawio-render-extension 1.0.18

Jupyterlab extension to just render the drawio diagram (viewer in Jupyterlab)

jupyterlab_drawio_render_extension

[!TIP] This extension is part of the stellars_jupyterlab_extensions metapackage. Install all Stellars extensions at once: pip install stellars_jupyterlab_extensions

View Draw.io diagrams directly in JupyterLab. Open any .drawio or .dio file and see it rendered with full fidelity - text, shapes, stencils, icons, and styles matching the official Draw.io application.

This extension uses the official Draw.io viewer library from jgraph, served locally from the server extension for offline capability and CSP compliance.

Features

• Full Draw.io rendering - Uses official Draw.io viewer library for pixel-perfect diagram display
• Read-only viewer - Safe viewing without accidental modifications
• Interactive controls - Scroll to zoom, drag to pan, layers panel, and lightbox view
• PNG export - Right-click to copy or download diagram as PNG with configurable DPI
• Configurable background - Choose from default (theme), black, white, or custom hex color
• Full stencil support - Veeam, Cisco, AWS, Azure, GCP, and all vendor shapes
• Offline capable - Viewer library served locally, no external network requests
• JupyterLab 4 compatible - Built for the latest JupyterLab release

PNG Export

Right-click on any diagram to access export options:

• Copy Diagram as PNG - Copy to clipboard at configured DPI
• Download Diagram as PNG - Save as PNG file

Export automatically crops to diagram content with minimal padding.

Settings

Configure the extension in Settings > Draw.io Viewer:

Viewer Settings

Setting	Description	Default
Background	Viewer background: default (theme), black, white, custom	default
Custom Background Color	Hex color (e.g., #f0f0f0) when background is custom	#ffffff

Export Settings

Setting	Description	Default
Export DPI	Resolution for PNG export (72-1200). Higher = larger file	300
Export Background	PNG background: transparent, white, black, custom	white

Requirements

• JupyterLab >= 4.0.0
• Python >= 3.10

Installation

pip install jupyterlab-drawio-render-extension

Uninstall

pip uninstall jupyterlab-drawio-render-extension