Substack to EPUB Converter

Save supported public Substack posts as reflowable EPUB files.

Convert a Story
Paste the URL of any supported story to generate an EPUB, PDF, or Kindle-compatible EPUB fallback.

Metadata

Supported:AO3SquidgeWorldAd AstraRoyal RoadScribble HubHoneyfeedFimfictionProject GutenbergStandard EbooksOpen WebCommafulDeviantArtLiteroticaLushStoriesSexStoriesFFNFictionPressWattpadSmutLibStoriesOnline / Bellesa

Free visitors

5 proxied story fetches every rolling 7 days.

Unlimited plan

Unlimited usage for supported public stories, including EPUB, PDF, and Kindle-ready EPUB downloads.

Substack to EPUB Converter

Smut2epub supports public Substack posts through its open-web article parser. Paste a public Substack post URL to generate an EPUB for personal offline reading.

How to do it

  1. Open the public Substack post you want to save.
  2. Copy the post URL.
  3. Paste it into Smut2epub.
  4. Choose EPUB and download the generated file.
  5. Open the EPUB in Kindle, Kobo, Apple Books, or another reader.

Best for

  • Saving long public Substack essays.
  • Reading posts on e-ink devices.
  • Keeping newsletter posts in an ebook library.
  • Reading offline without browser clutter.

Important limits

  • Paid, private, subscriber-only, or login-only posts may not convert.
  • Custom Substack domains may not work unless supported by the open-web parser.
  • Use saved files only for personal, non-commercial offline reading.

Related guides

Substack to KindleNewsletters to KindleOpen Web Articles