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Turn Your Substack Into a Podcast — Paste the Link, Get an Episode

Your Substack already has the ideas, the audience, and the voice. Now give it a soundtrack. Paste any Substack post URL into vibecasting's topic box, and the AI transforms your newsletter into a fully produced podcast episode — complete with research depth, natural dialogue, and broadcast-quality audio. Your subscribers get a new way to engage. You get a new channel without new work.

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Paste your Substack URL into the topic box — the AI builds a full episode around your newsletter.

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Your ideas, restructured as natural two-host conversation — not a flat reading of your post.

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Grow beyond the inbox: reach podcast listeners who'll never open a newsletter.

How to turn a Substack post into a podcast episode

Go to vibecasting's landing page, paste your Substack post URL into the topic box, and hit enter. That's it. The AI reads your newsletter, identifies the thesis and key arguments, then builds a podcast episode around them. It adds supplemental research for depth, restructures everything into a conversational script with two hosts, and renders multi-voice audio with professional sound design. The whole process takes minutes. You can review the script before production or let it run end-to-end.

Why Substack writers are launching companion podcasts

The most successful Substack writers — the ones with six-figure subscriber counts — almost all have podcasts. Audio creates a deeper connection with your audience than text alone. Listeners hear tone, emphasis, and personality that written words can't fully convey. A companion podcast also reaches people who'd never subscribe to a newsletter: commuters, dog walkers, gym-goers. With vibecasting, you don't need to buy a mic, learn audio editing, or spend hours recording. You paste a link and get an episode. Your weekly newsletter becomes a weekly podcast with zero additional production effort.

More than a reading — a real conversation about your ideas

The worst thing you can do with a newsletter-to-podcast conversion is just read the post aloud. vibecasting doesn't do that. It takes your arguments and reframes them as a dynamic conversation between two hosts who engage with the material — asking questions, pushing back, adding context, and making the kind of connections that emerge in natural discussion. The AI also pulls in current research and data to supplement your post, so the podcast episode often goes deeper than the original newsletter. Subscribers who read and listen get two complementary experiences, not the same content twice.

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frequently asked

Paste your Substack post URL into the topic box on vibecasting's landing page. The AI reads your newsletter, adds research depth, restructures it into a two-host conversation, and produces a fully produced audio episode.

Yes. Paste one post URL at a time to convert your back catalog. Many writers start with their most popular posts and work backwards.

The AI needs to access your post content. Public posts work by pasting the URL directly. For paywalled posts, you can paste the text content into the topic box instead of the URL.

Absolutely. Many Substack writers convert each new issue into a companion podcast episode. vibecasting supports scheduled cadences so you can build a consistent publishing rhythm.

No. vibecasting restructures your writing into a natural conversation between two hosts, adds supplemental research, and produces the episode with professional sound design. It's a produced podcast, not text-to-speech.