We built the tool we wished existed.
If you write on Substack, you've probably experienced the frustration: you draft a beautiful post in markdown, complete with tables and formatted code blocks, and when you paste it into Substack's editor... everything breaks.
Tables vanish. Formatting disappears. You spend 30 minutes re-creating content that already looked perfect in your markdown editor. Every single time.
DownStack converts your markdown to Substack-ready rich text in one click. Tables are automatically rendered as clean, hosted images that display perfectly in Substack posts. Your formatting is preserved. Your content looks exactly how you intended.
No more copy-paste headaches. No more re-formatting. Write in markdown, publish on Substack.
We believe in simple, honest pricing. $10/year covers the cost of permanently hosting your table images on fast global infrastructure. No hidden fees. No surprise charges. No recurring subscription you'll forget about.
The free tier gives you 3 conversions so you can try the tool before committing. We think you'll love it.
DownStack is built specifically for newsletter writers who prefer to draft in markdown. Whether you're writing about finance, tech, science, or anything else that involves data and tables, DownStack makes your content look professional with zero extra effort.