Self-Hosted PCB Design Visualization & Documentation Tools: InteractiveHtmlBom vs KiCanvas vs PcbDraw

Introduction

Once you’ve completed a printed circuit board (PCB) design in KiCad, Eagle, or another EDA tool, the next challenge is communicating that design to others — whether it’s your assembly technician, a client reviewing the layout, or a community member wanting to understand your open-source hardware project. Static Gerber files and PDF schematics only go so far: they lack interactivity, searchability, and the visual polish needed for professional documentation.

Self-hosted PCB visualization and documentation tools bridge this gap by transforming raw design files into interactive, web-browser-friendly formats. Instead of emailing zip files back and forth, you can host a local web server that renders your PCB designs as interactive HTML pages with searchable bills of materials, pin highlighting, and high-quality board renderings.

In this guide, we compare three leading open-source tools for PCB design visualization and documentation: InteractiveHtmlBom, KiCanvas, and PcbDraw. Each serves a different role in the design-to-documentation pipeline, and together they form a comprehensive toolkit for any hardware engineer.

Why Self-Host Your PCB Documentation?

Sharing PCB designs traditionally involves exporting static images, PDFs, or Gerber files. These formats work but are inherently limited — reviewers cannot search for components, trace signal paths interactively, or zoom into fine-pitch areas without losing resolution.

A self-hosted documentation pipeline lets you generate interactive HTML pages from your design files and serve them on your local network or via a web server. Your entire team can review the same board simultaneously, manufacturers can search for specific components in the BOM, and your open-source hardware documentation stays beautifully presented and always up to date.

For hardware testing workflows, see our guide on self-hosted JTAG and SWD remote debug servers. If you need a systematic way to record your design decisions, check out our electronic lab notebook comparison. For interacting with physical hardware through web interfaces, our GPIO web control guide covers the server side.

Comparison Table

InteractiveHtmlBom: The Assembly Swiss Army Knife

InteractiveHtmlBom (IBOM) is the most feature-rich tool in this comparison. Originally a KiCad plugin, it now supports Eagle, EasyEDA, Fusion360, and Allegro — making it the universal choice for multi-tool workflows.

Key Features

• Searchable BOM: Click any row in the BOM table, and the corresponding components highlight on the board view
• Net highlighting: Trace signal paths by clicking on a net — instantly see all connected pads, vias, and traces
• Dark mode: Built-in theme switching for comfortable late-night assembly sessions
• Assembly variants: Support for “Do Not Populate” (DNP) variants — mark components as unpopulated and they appear greyed out
• Component rotation: The board can be flipped to view both sides, with components rendering correctly for top and bottom layers

Installation

The simplest deployment is as a KiCad plugin:

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# Clone the repository
git clone https://github.com/openscopeproject/InteractiveHtmlBom.git
cd InteractiveHtmlBom

# For KiCad plugin installation, copy to the plugin directory
cp -r InteractiveHtmlBom ~/.local/share/kicad/8.0/scripting/plugins/

# Or run as a standalone Python script
python3 -m pip install wxpython
python3 InteractiveHtmlBom/generate_interactive_bom.py your_board.kicad_pcb

Docker Deployment

For automated CI/CD pipelines that generate IBOM artifacts on every commit:

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# docker-compose.yml
version: '3'
services:
  ibom-generator:
    image: ghcr.io/openscopeproject/interactive-html-bom:latest
    volumes:
      - ./kicad-projects:/data
    command: python3 generate_interactive_bom.py /data/board.kicad_pcb --dest-dir /data/output

KiCanvas: The Web-Native Board Viewer

KiCanvas takes a fundamentally different approach: instead of generating a standalone HTML file, it provides a web application that renders KiCad board files directly in the browser using WebGL. This means no export step is needed — you drop a .kicad_pcb file into the viewer and it renders instantly.

Key Features

• Zero-export workflow: Drag and drop a .kicad_pcb file directly into the browser
• Layer management: Toggle individual copper layers, silk screens, solder mask, and courtyard layers on and off
• Net class visualization: Different net classes render in distinct colors, making power and differential pair routing easy to spot
• Component search: Find any reference designator instantly
• Embeddable: Integrate the viewer into documentation sites, wikis, or project pages via an iframe

Self-Hosting

KiCanvas can be self-hosted as a static site or containerized web application:

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# Clone and build
git clone https://github.com/theacodes/kicanvas.git
cd kicanvas
npm install
npm run build

# Serve the static build with any web server
python3 -m http.server 8080 --directory dist/

# Or with Docker
docker run -d -p 8080:80 \
  -v $(pwd)/dist:/usr/share/nginx/html \
  nginx:alpine

For production use, deploy behind a reverse proxy:

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server {
    listen 80;
    server_name kicanvas.local;

    location / {
        root /var/www/kicanvas;
        index index.html;
    }

    # Allow large board files (up to 100MB)
    client_max_body_size 100M;
}

PcbDraw: Beautiful Board Artwork for Documentation

PcbDraw converts KiCad PCB files into polished 2D vector illustrations that look like hand-drawn board artwork. Unlike IBOM (interactive) and KiCanvas (WebGL viewer), PcbDraw generates static SVG and PNG images optimized for inclusion in documentation, datasheets, and README files.

Key Features

• Style customization: Multiple built-in rendering styles — from realistic green FR4 to clean monochrome
• Pinout diagrams: Generate pinout reference cards with labeled headers and connectors
• Component libraries: Ships with rendering definitions for common component packages
• CLI and library mode: Use as a command-line tool or import as a Python library for automated pipelines
• High-DPI output: Generate print-ready images at any resolution

Installation & Usage

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# Install via pip
pip install pcbdraw

# Generate a board rendering
pcbdraw plot \
  --style set-blue-enig \
  --side front \
  your_board.kicad_pcb \
  board_front.png

# Generate both sides at print resolution
pcbdraw plot \
  --dpi 300 \
  --side back \
  your_board.kicad_pcb \
  board_back.png

# Generate a pinout diagram from a library file
pcbdraw populate \
  --lib modules.json \
  your_board.kicad_pcb \
  pinout_diagram.svg

Automated Documentation Pipeline

Combine PcbDraw with a Makefile for automated board documentation generation:

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# Makefile for PCB documentation
BOARD = my_project
STYLE = set-blue-enig

all: $(BOARD)-front.png $(BOARD)-back.png $(BOARD)-ibom.html

$(BOARD)-front.png: $(BOARD).kicad_pcb
	pcbdraw plot --style $(STYLE) --side front $< $@

$(BOARD)-back.png: $(BOARD).kicad_pcb
	pcbdraw plot --style $(STYLE) --side back $< $@

$(BOARD)-ibom.html: $(BOARD).kicad_pcb
	python3 generate_interactive_bom.py $< --dest-dir .

Deployment Architecture

A typical setup uses all three tools together:

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┌─────────────────────────────────────────────────┐
│                 CI/CD Pipeline                    │
│  git push ───► Generate IBOM + PcbDraw + WebGL   │
│                     │         │         │         │
│                     ▼         ▼         ▼         │
│              ibom.html  board.png  kicanvas/      │
│                     │         │         │         │
│                     ▼         ▼         ▼         │
│              Nginx serves documentation site      │
│  ┌──────────────────────────────────────────┐    │
│  │  docs.your-project.local                  │    │
│  │  ├── ibom/board.html    (Interactive BOM) │    │
│  │  ├── images/board.png   (PcbDraw art)     │    │
│  │  └── viewer/            (KiCanvas)        │    │
│  └──────────────────────────────────────────┘    │
└─────────────────────────────────────────────────┘

Choosing the Right Tool

• Interactive BOM for assembly: If your primary need is assisting with manual PCB assembly — finding component locations, verifying orientations, checking values — InteractiveHtmlBom is the tool. Its search-and-highlight workflow is purpose-built for hand-soldering sessions.

• Web-based review for collaboration: If you need remote team members to review board layouts without installing EDA software, KiCanvas provides the smoothest experience. Drop a file and review instantly.

• Documentation artwork: If you’re writing datasheets, READMEs, or blog posts about your hardware project, PcbDraw generates the polished board images that make documentation look professional. Use it alongside IBOM for a complete documentation package.

The three tools are complementary, not competitive. A well-documented open-source hardware project typically uses all three: IBOM for assembly instructions, KiCanvas for interactive web review, and PcbDraw for static documentation artwork.

FAQ

Can I use these tools with EDA software other than KiCad?

InteractiveHtmlBom supports the widest range of input formats: KiCad, Eagle, EasyEDA, Fusion360, and Allegro. KiCanvas and PcbDraw are KiCad-only. If your team uses Eagle or Fusion360, IBOM is your primary option for interactive documentation.

Do I need a GPU to run KiCanvas on my server?

No. KiCanvas uses WebGL in the client’s browser, not on the server. The server only needs to serve static files. Rendering happens on the viewer’s device, so any basic web server (Raspberry Pi, VPS, NAS) can host it.

How do I keep the generated documentation in sync with design changes?

Set up a CI/CD pipeline triggered on git pushes to your hardware repository. GitHub Actions, GitLab CI, or a simple pre-commit hook can automatically regenerate IBOM files, PcbDraw images, and KiCanvas builds whenever your .kicad_pcb file changes. The Makefile example above can be incorporated into any CI system.

What about proprietary PCB designs — can I restrict access?

Yes. Since all three tools generate static assets served by a standard web server, you can put them behind authentication using HTTP basic auth, OAuth2 proxy, or a VPN. For internal teams, simply host the documentation site on your corporate intranet with standard access controls.

How large can a PCB design be before these tools struggle?

InteractiveHtmlBom handles boards with thousands of components well, though very large designs (10,000+ pads) may cause slower initial rendering. KiCanvas loads board files progressively and handles multi-layer high-density designs efficiently. PcbDraw’s rendering time scales linearly with component count — boards with 500+ components may take 10-20 seconds to render at high DPI.

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