How To Repurpose Substack Newsletters Into Facebook Posts

By Matt Giaro

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So you want to repurpose your content from Substack to Facebook?

I get it. You spend hours crafting those thoughtful newsletters, only to have them reach a fraction of your potential audience.

While your Substack articles might be gold mines of expertise, they’re sitting in inboxes instead of circulating through the social media channels where your audience hangs out daily.

The good news? That well-researched Substack content can have a second life—without you having to create everything from scratch again.

Why you should repurpose from Substack to Facebook

Most content creators make a critical mistake: they put all their eggs in one platform basket.

Here’s the truth: you never really know what content will resonate with which audience on which platform.

Back in 2020, I created a series of YouTube videos about note-taking. They performed okay—nothing spectacular. But when I decided to repurpose those same ideas into Medium articles, something unexpected happened.

That repurposed content helped me launch a profitable five-figure course and add 3,000 email subscribers to my list in just 12 weeks.

Why such a dramatic difference? It comes down to various factors:

  • Different audiences consume content differently
  • Platform algorithms favor native content types
  • Timing and context can change how ideas are received
  • Format preferences vary across platforms

The main differences between Substack and Facebook

Substack and Facebook couldn’t be more different as content platforms:

Substack:

  • Long-form, in-depth content
  • Direct delivery to subscribers
  • Focused reading experience
  • People expect thoughtfulness and depth
  • Minimal distractions during consumption

Facebook:

  • Scrolling-optimized content
  • Competing with thousands of updates
  • Highly visual and interruptive environment
  • Quick consumption in busy feeds
  • Social sharing and conversation-focused

Why you should post on Facebook

Despite all the “Facebook is dying” talk, it remains one of the largest audiences on the planet with nearly 3 billion monthly active users.

Facebook still dominates time spent online for many age groups, especially the 40+ demographic that might be your ideal target audience.

The platform’s powerful targeting tools make it possible to reach very specific audiences with your content, often at a fraction of the cost of other platforms.

What makes good Facebook content

Successful Facebook posts typically have these characteristics:

Visual Appeal: Include an eye-catching image or graphic that stops scrolling.

Emotional Triggers: Content that evokes emotion (inspiration, surprise, or even controlled controversy) performs better.

Brevity with Depth: The visible part needs to hook readers immediately, but can lead to deeper insights.

Clear Value Proposition: Within the first sentence or two, readers should understand what they’ll gain.

For example, instead of sharing your entire Substack article about “7 Ways to Monetize Your Expertise,” you might create a Facebook post that leads with:

“The most profitable knowledge business I’ve built didn’t come from coaching or courses. It came from this overlooked monetization method that took just 3 hours to set up…”

This creates curiosity and offers clear value without overwhelming the Facebook audience.

Build Your Swipe File Of Winning Facebook Content

The best way to create high-performing Facebook content is to study what already works on the platform.

Don’t just follow the big names with millions of followers. They can get away with content that wouldn’t work for smaller accounts.

Instead, look for creators who are relatively new but experiencing rapid growth. These are the ones whose strategies you should analyze and adapt.

Create a folder where you save screenshots of Facebook posts that stop your scrolling. Note what made you engage with them, and how they’ve structured their hooks and content.

Pro Tip: Find 5-10 accounts in your niche that consistently get high engagement despite having moderate follower counts. These are your true content role models.

Download my free templates of winning Facebook posts here.

Set up an automation to turn Substack articles to Facebook posts

Okay, so now that you have these laid out…

You could either do this manually like a monkey.

Hire a VA that you need to train for weeks on Fiverr…

Or (my favorite way):

You could use AI and automation tools to make this process as smooth as butter.

Here’s an example:

As soon as you publish on Substack, an automation can transform that content into Facebook-friendly format.

Tools like n8n, Make (formerly Integromat), or Zapier can connect your Substack to Facebook with specific AI-powered prompts.

A simple workflow might look like:

1. New Substack post published → trigger

2. Extract content via RSS or email notification

3. Send to AI tool with a prompt like: “Transform this newsletter content into a compelling, 200-word Facebook post that leads with a hook, includes one key insight, and ends with a question. Keep the voice conversational and add appropriate emojis.”

4. Post to Facebook (either automatically or after your approval)

This approach gives you the best of both worlds: the depth of Substack and the reach of Facebook, without doubling your workload.

Stop leaving audience growth on the table. Your knowledge deserves to reach more people, and repurposing is the most efficient path to get there.

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