Mailchimp is a leading all-in-one marketing platform that serves as both an Email Service Provider (ESP) and an email builder. Founded in 2001, Mailchimp has grown from a simple email marketing tool into a comprehensive marketing solution used by businesses of all sizes worldwide.

Mailchimp allows users to create, design, and send email campaigns through its intuitive interface. The platform offers drag-and-drop email building capabilities, pre-designed templates, list management features, audience segmentation, and detailed analytics. Beyond email marketing, Mailchimp has expanded to include additional tools for customer relationship management (CRM), landing pages, digital ads, social media management, and automated marketing sequences.

Its popularity stems from its user-friendly interface, scalable pricing (including a free tier for small businesses), robust feature set, and extensive integration capabilities with other business tools and platforms.