The best way to grow your newsletter with qualified subscribers

Your newsletter will be recommended inside hundreds of the most-read newsletters in your industry, delivered daily through our platform. With One-Click Opt-In, readers can subscribe instantly. You can export your subscriber list anytime in CSV format and import it into any email platform.

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Get featured in the footer of 65M+ emails sent via our newsletter platform each month

Your email list will be recommended in hundreds of other newsletters sent daily through Subletter.

You can customize the ad to attract even more qualified subscribers and encourage readers to sign up for your list.

You'll gain subscribers who are accustomed to reading newsletters and highly qualified leads to sell your products and services.


You can export all the subscribers you collect as a CSV file, ready to import into your own newsletter platform.

Turn Readers into Subscribers Instantly with One-Click Opt-In

One-Click Opt-In

With Subletter's one-click opt-in, users can subscribe to your newsletter instantly by simply clicking a button—no additional steps required. Boost your subscriber count and streamline the signup process!

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Create your ad

Write a short, compelling message about your newsletter. We’ll help you optimize it for maximum conversions.

Select the newsletters to be featured in

Your ad is automatically embedded in the footer of emails sent by our partner newsletters — precisely where engaged readers are most likely to take action.

Readers subscribe in one click

When a reader clicks your ad, they’re subscribed instantly — no forms, no friction. Our proprietary tracking system ensures seamless 1-click opt-ins.

Linus (The Publisher - 50k subscribers)

“Subletter Optins played a key role in growing The Publisher. Within just a few weeks, we gained over 20,000 new subscribers — but more importantly, we saw a noticeable boost in engagement across our entire newsletter. Open and click rates improved significantly, which had a direct impact on our sponsorship revenue. It's been a powerful growth and monetization tool for us.”

Julien (Minute Media - 75k subscribers)

“Subletter Optins has been a major growth driver for us, helping us grow our newsletter from 20,000 to over 70,000 subscribers.”

First Optins Campaign Deal

Pay $1,000 and get 5,000 guaranteed subscribers to your newsletter

For your first campaign, take advantage of a deal that gives you 5,000 guaranteed subscribers for only $1,000.

Get the deal

Sponsor over 2,500 newsletters across all categories

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