Chrome Extension · Productivity

Substack Bulk Downloader

Download any Substack post — or an entire publication archive — as clean, high-fidelity Markdown, HTML, or PDF files. One-click conversion, perfect offline rendering, and local media bundling, all inside your browser.

Stop relying on messy screenshots or tools that strip out formatting. Preserve typography, layout, and images locally for a permanent, offline-ready personal library.

  • Markdown · HTML · PDF export
  • Bulk archive download & date-range filtering
  • 100% local · zero tracking

What it does

Key features

📥 One-Click Instant Download

Save the current post instantly as a standalone HTML file, cleanly formatted Markdown, or a print-ready PDF — via the social-bar integration or floating action buttons.

📚 Batch Archive & Auto-Paging

Back up entire publication feeds in bulk. It pages through Substack's native backend in the background, extracting every article — no manual infinite-scroll required.

📅 Advanced Date-Range Filtering

Target a specific archive span. Set start and end date boundaries; the background queue downloads matching articles and stops early once the timeline passes your threshold.

📂 Structured Directory Organization

Content is saved in a clean, nested layout — Downloads/Substack/[Publication]/[Date] [Headline]/ — with images downloaded, extension-resolved, and mapped via relative links under images/.

🏷️ Flexible File Naming

Choose Standard ([Pub] - YYYY-MM-DD - [Headline]) or Date First (YYYYMMDD [Headline]) for chronological sorting. A strict Unicode sanitizer keeps paths OS-safe.

🔐 Paid & Private Content Support

Because it fetches articles from your active browser context, it carries your login session — enabling high-fidelity extraction of any paid, premium, or private content you already have access to.

How it works

Four steps

01

Navigate

Open any Substack article or the publication's /archive page.

02

Open the panel

Launch the Bulk Downloader panel or click the Save Post buttons.

03

Pick a mode

Choose Checked Checkboxes, All Archive, or Date Range.

04

Download

Watch files download sequentially with rate-limit delays that respect server capacity.

Privacy & security

Runs entirely in your browser

100% Local Execution

All extraction, cleaning, and file construction happen directly inside your browser.

Zero Tracking

No third-party servers, analytics, or telemetry of any kind.

Access Integrity

Respects your subscription permissions — accessing only content you are actively logged in to read.

Ideal For

Newsletter enthusiasts, researchers and analysts building searchable local caches, and students or writers keeping offline references with media intact.

Interested in the extension or have a question? The fastest way to reach me is email.