As environmental challenges intensify, sustainability has become an essential focus for businesses globally. This paper explores how companies are leveraging digital platforms to integrate sustainability into their branding efforts through green marketing strategies. It examines the evolution of green marketing, the key drivers behind its rise, the strategic use of digital platforms, and the challenges associated with authenticity and consumer skepticism. The paper also analyzes successful case studies, outlines best practices for brands, and explores the future of sustainable digital branding in an increasingly eco-conscious and tech-driven market. This research paper explores the intersection of sustainability, digital branding, and green marketing, focusing on the rise of eco-conscious campaigns on digital platforms. With increasing global awareness about climate change and resource scarcity, consumers now demand accountability from brands. Green marketing—defined as the communication and promotion of environmentally responsible practices—has become essential for organizations striving to remain competitive. Digital platforms offer unique opportunities for creating transparency, engaging directly with stakeholders, and shaping brand narratives around sustainability. The paper examines key strategies, consumer behavior, case studies, and challenges, while also forecasting the future trajectory of green digital marketing.