Substack Chat Exporter by Stackscraper

Export Substack chat threads, replies, and sub-replies from the current page to JSON, CSV, or Markdown.

Stackscraper exports Substack chat threads to JSON, CSV, or Markdown with full reply depth preserved. Stackscraper retrieves the complete thread hierarchy, including replies and nested sub-replies, so you get the full conversation. The extension uses your existing browser session and processes everything locally. No account creation, no credentials, your Substack content never leaves your browser. Your export file downloads directly to your device. 👉 Features: • Full thread depth: posts, replies, and nested sub-replies • Three output formats: JSON, CSV, and Markdown • Clean output mode strips IDs and metadata for readability • Resume from last export so you never re-export old content • Works on any Substack chat you can access in your browser 👉 How to use: • Open a Substack chat page • Click the Stackscraper icon • Choose your format and options • Click Export Chat Free plan: 10 exports per month with full reply depth and all three formats. Pro plan: Unlimited exports and resume-from-last-export for recurring workflows. Built for researchers, analysts, writers, and anyone feeding Substack content into AI tools or archives.