To read Substack offline, convert the newsletter to an EPUB ebook using Stack to Book, then download it to your device. Once saved, you can read the entire archive without an internet connection — on a plane, at the beach, or anywhere.
Substack is built for online reading. The app has limited offline caching, but there's no "download everything" button. If you want a reliable way to read newsletters offline — especially entire archives — converting to EPUB is the best approach.
The Problem with Online-Only Reading
Substack newsletters live on the web. You read them in your browser or the Substack app, which means:
- No internet = no reading — airports, subways, flights, rural areas
- Distractions — notifications, tabs, and the pull of other apps
- Eye strain — phone and laptop screens aren't ideal for long-form reading
- No archive access — scrolling through hundreds of posts online is tedious
An EPUB ebook solves all of these. Download once, read forever, on the device of your choice.
How to Download Substack for Offline Reading
- 1
Convert the newsletter
Go to stacktobook.com and paste the Substack URL. The tool fetches every public post and packages them into a single EPUB file.
- 2
Download the EPUB
Once conversion finishes (usually under 60 seconds), download the file. It's stored locally on your device — no cloud account needed.
- 3
Read on your device
Open the EPUB in any reading app. The content is fully offline — no internet connection required.
Best Devices for Offline Reading
Kindle
The gold standard for distraction-free reading. Send the EPUB to your Kindle via email or the Send to Kindle app. E-ink is easy on the eyes and battery lasts weeks. See our Send to Kindle guide for details.
iPad / iPhone
Open the EPUB in Apple Books. Great for newsletters with lots of images or charts. Apple Books keeps your place across devices via iCloud.
Kobo / Nook
These e-readers support EPUB natively. Just transfer the file via USB or built-in browser download. No conversion needed.
Android Phone / Tablet
Google Play Books, Moon+ Reader, or ReadEra all handle EPUB files. Import the file and start reading — offline, with full chapter navigation.
Frequently Asked Questions
Can you read Substack offline?
Substack doesn't have a native offline feature for full archives. The best approach is to convert the newsletter to EPUB using Stack to Book and download it to your device.
Does the Substack app work offline?
The Substack app may cache recently viewed posts, but there's no reliable way to download an entire newsletter archive for offline reading. Stack to Book converts the full archive to a single ebook.
How do I download a Substack newsletter?
Use Stack to Book: paste the newsletter URL at stacktobook.com, wait for conversion, and download the EPUB. The entire public archive becomes a single ebook.