Buttondown

Markdown-first newsletter tool with an API, popular for developer-audience newsletters.

Newsletter infrastructure that behaves like a developer tool: write in Markdown, automate everything through a REST API, and keep your subscriber list portable. It handles paid subscriptions, RSS-to-email automation, and public archives without marketing-suite bloat. A common choice for personal DevRel newsletters and product digests.

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Added July 12, 2026

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