Substack is a newsletter and publishing platform where writers, journalists, and other creators can send content directly to subscribers by email, and they can make that content free or paid. In plain English, it’s a tool for building an audience without needing your own website or email system first.

What it means

When people say “I’m on Substack,” they usually mean they publish newsletters there and may charge readers a subscription. The platform also supports things like posts, podcasts, video, and subscriber chats, so it’s more than just email.

Why people use it

  • To write and send newsletters easily.
  • To keep direct contact with readers.
  • To earn money through paid subscriptions.
  • To publish without much technical setup.

Simple example

A food writer might post recipes for free each week, then reserve bonus recipes or behind-the-scenes notes for paying subscribers. That’s a very typical Substack setup.

In short

Substack means a platform for independent publishing, especially newsletters, with optional paid subscriptions. It’s basically a way to turn writing or content into a direct relationship with an audience.

TL;DR: Substack is a platform for sending newsletters and other content directly to subscribers, often with a paid membership option.