Substack is a platform that allows writers, journalists, and creators to publish newsletters and monetize them through paid subscriptions. It handles payment processing, email delivery, and subscriber management, letting writers focus on content. Substack has attracted thousands of independent writers, including prominent journalists and subject-matter experts, who use it to build direct relationships with their audiences and earn a living from their writing.

For developers and analysts, Substack offers a way to share technical insights, industry analysis, and tutorials with a dedicated audience. The platform supports free and paid tiers, allowing creators to offer some content for free while charging for premium posts. Substack's rise reflects a broader shift toward independent media and creator-owned audiences. Whether you are a writer launching a newsletter or a reader looking for expert commentary, Substack is a leading platform in the newsletter economy.