Selling digital products online is one of the most profitable ways to earn passive income in 2025. Whether you're offering website templates, mobile app code, design assets, or eBooks, this guide walks you through everything you need to get started. From choosing the right marketplace to pricing strategies, licensing, and optimizing your listings, learn how to build a scalable digital product business from scratch.Selling digital products online is one of the most profitable ways to earn passive income in 2025. Whether you're offering website templates, mobile app code, design assets, or eBooks, this guide walks you through everything you need to get started. From choosing the right marketplace to pricing strategies, licensing, and optimizing your listings, learn how to build a scalable digital product business from scratch.Selling digital products online is one of the most profitable ways to earn passive income in 2025. Whether you're offering website templates, mobile app code, design assets, or eBooks, this guide walks you through everything you need to get started. From choosing the right marketplace to pricing strategies, licensing, and optimizing your listings, learn how to build a scalable digital product business from scratch.