SwipeStack

For Substack writers

Your Substack essays, ready for Instagram.

Connect your publication and SwipeStack turns each new essay into a polished, swipeable carousel — your words preserved, your style saved, a subscribe prompt on the last slide.

The Grey Letter24 articles

Recent articles

The Quiet Collapse of Attention2 days ago
Notes on a Warm Economylast week
The Shape of Cities to Come2 weeks ago

The problem

Posting your essays shouldn't be a chore.

Screenshots look amateur

Cropped text and broken images make your writing look less professional than it is.

AI tools flatten your voice

Summarisers rewrite your essay into something generic that no longer sounds like you.

Canva eats your evening

Hand-laying every slide for every post is hours you’d rather spend writing.

What you get

Built for the way you publish.

New-post detection

We watch your RSS feed and spot each new article the moment it goes out, ready to adapt.

A style per publication

Save your look once — type, colours and footer — and every edition comes out on-brand.

Subscribe CTA on the last slide

End every carousel with a prompt that drives new readers straight back to your Substack.

Footnotes & sources

Keep your citations intact with first-class footnote and source cards built for serious writing.

“I was dreading the social side of publishing. SwipeStack kept my voice exactly as I wrote it — it just made the words travel.”
The voice we’re building for · an independent essayist

Illustrative — not a real customer

Your words, beautifully published.

Connect your Substack and turn your next essay into a carousel — free.