HTML Page Preview

Inline preview for embedded HTML files in Obsidian. Expand ![[page.html]] directly inside your note and render the HTML page there.

Author: SATOSprod
License: Proprietary — see LICENSE

Features

• Inline HTML rendering — replace the default “open file” behavior with an expandable preview for embedded .html and .htm files
• Expand / collapse — each embed can be opened inline and collapsed back at any time
• Two display modes:
  • Fixed 16:9 — ideal for desktop; large pages scroll inside the frame
  • Infinite height — the iframe grows to the full document height, even for very tall pages
• Open file button — keep a direct button to open the HTML file in its own Obsidian tab
• Minimal UI — SVG icons only, no emoji, flat business-style design
• GitHub-ready project — includes README, LICENSE, .gitignore, manifest.json, versions.json, tsconfig.json, and esbuild.config.mjs

Requirements

• Obsidian 1.13.0 or later
• Works with embedded HTML files referenced like:

![[plugin_style.html]]

Installation

From source

git clone https://github.com/SATOSprod/html-page-preview.git
cd html-page-preview
npm install
npm run build

Copy these files into your vault:

<your-vault>/.obsidian/plugins/html-page-preview/
├── main.js
├── manifest.json
└── styles.css

Then open Obsidian → Settings → Community plugins → Installed plugins and enable HTML Page Preview.

Development mode

npm run dev

Configuration

Open Settings → HTML Page Preview.

Usage

1. Put an HTML file in your vault, for example plugin_style.html
2. Embed it in a note:

![[plugin_style.html]]

3. Switch to Reading view
4. Click Expand preview
5. The HTML page is rendered inline in the note
6. Click Collapse preview to hide it again

Notes

• The plugin targets embedded HTML files only (.html, .htm)
• Inline replacement is implemented with a Markdown post processor, so the inline HTML page preview is designed for Reading view
• Fixed 16:9 is better for large or complex pages because the note height stays manageable
• Infinite height is useful when you want the entire page rendered at once inside the note

File Structure

html-page-preview/
├── main.ts
├── main.js
├── styles.css
├── manifest.json
├── package.json
├── tsconfig.json
├── esbuild.config.mjs
├── versions.json
├── .gitignore
├── LICENSE
└── README.md

License

This project is released under a proprietary license.
Copying source code into other projects is not permitted.
See LICENSE for full terms.

© 2026 SATOSprod