Substack ダウンローダー 作成者: Neo Cortex

Substack Downloader is a fast, lightweight Chrome extension that lets you download Substack videos, audio posts, and podcasts directly to your device in MP4 and MP3 format. Built specifically for Substack, it ensures accurate detection and reliable downloads from video posts, audio newsletters, and podcast episodes — including premium content you already have access to.

Unlike generic video downloader tools, Substack Downloader is engineered exclusively for the Substack platform. It works seamlessly with embedded Mux video streams, native Substack audio players, and dynamically loaded media across all Substack publications, including custom domains.

🚀 Key Features:

🎥 Download Substack Videos (MP4)
• Download embedded Substack videos hosted on Mux
• Save videos as standard, playable MP4 files
• Supports high-quality downloads up to 1080p (Pro)

🔊 Download Substack Audio & Podcasts (MP3)
• Download Substack audio posts and podcast episodes
• Save audio as MP3 for offline listening
• Fully compatible with native Substack audio players

☁️ Cloud Sync & Backup (Optional)
• Connect Google Drive or Dropbox
• Automatically upload downloaded files to the cloud
• Keep your Substack media library backed up and accessible anywhere

🧠 Smart Substack Media Detection
• Automatically detects video and audio players on Substack pages
• Works with hidden players, lazy-loaded media, and deep-linked audio
• Compatible with all Substack publications and custom Substack domains

📂 Batch Downloads for Substack Posts
• Download all videos and audio from a page at once
• View detected Substack media in the extension popup
• Ideal for long newsletters, archives, and research workflows

📝 Advanced File Organization
• Automatically name files using post titles
• Organize downloads by publication name, year, or month
• Custom file naming and folder structure support

🔐 100% Private & Local
• Runs entirely inside your browser
• No servers, no analytics, no tracking
• No ads and no external services required
• Your data and downloads stay on your device

⚡ How to Use Substack Downloader

Method 1: Download from the Player
1. Open any Substack post with video or audio
2. Hover over the media player
3. Click the download button to save instantly

Method 2: Batch Download
1. Click the extension icon in your browser toolbar
2. View all detected Substack videos and audio on the page
3. Click "Download All" to save everything at once

🔎 Supported Substack Downloads
• Download Substack videos
• Download Substack audio posts
• Download Substack podcasts
• Download Substack Mux video streams
• Offline access to Substack media
• Works on substack.com and custom Substack domains

Substack Downloader is designed for readers, researchers, and creators who want offline access to Substack content they already have permission to view.
Simple, reliable, and built exclusively for Substack.