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Preview of Substack Insights

Substack Insights by Mona Mona

Unofficial analytics tool for Substack creators. Helps Substack creators understand their publication's performance through comprehensive analytics with local, privacy-first data processing. Not affiliated with Substack.

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Extension Loaded - Enter the URL for your Substack publication.Extension Loaded - View Analytics in side panel view.Full Dashboard View - Basic Statistics and Most Engagement ViewMost Liked, Commented, and Restacked PostsOptimal publication length and day/time to publish.Downloaded and unzipped .csv file containing your data and sample prompts for use with your LLM/AI of choice.
About this extension
Helps Substack creators understand their publication's performance through comprehensive analytics.

Features:
- Post performance metrics (likes, comments, restacks)
- Engagement trends and posting frequency analysis
- Top performing posts identification
- Best posting times and day-of-week breakdowns
- Export analytics to CSV/ZIP
- 100% local processing - no data leaves your browser

Privacy-First Design:
All analysis happens locally in your browser. No servers, no tracking, no data collection. Your Substack data stays private.

How it works:
1. Log-in to your Substack publication
2. Click the extension to analyze posts
3. View insights in the sidebar or see even more in the full dashboard
4. Export data for further analysis (you can use your favorite LLM, sample prompts included).

Perfect for creators who want data-driven insights while maintaining complete privacy.

Note: This is an unofficial tool, not affiliated with Substack.
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Permissions and data

Required permissions:

  • Download files and read and modify the browser’s download history

Optional permissions:

  • Access your data for sites in the substack.com domain

Data collection:

  • The developer says this extension doesn't require data collection.
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More information
Version
1.0.0
Size
90.64 KB
Last updated
15 days ago (Dec 2, 2025)
Version History
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