<p>Chitosan, a biodegradable polymer derived from chitin, has gained significant attention as a sustainable food packaging material due to its unique functional properties. This paper explores recent advancements in chitosan-based packaging, highlighting its key attributes, including biocompatibility, biodegradability, antimicrobial activity, and barrier properties. The incorporation of various additives, such as nanoparticles, polymers, and bioactive compounds, enhances the mechanical, thermal, and functional performance of chitosan films, making them suitable for preserving the quality and safety of perishable food products. Additionally, the fabrication methods used for chitosan packaging play a crucial role in determining the final characteristics of these films, influencing factors such as flexibility, moisture resistance, and oxygen permeability. Recent applications demonstrate its potential to address major challenges in food packaging, such as microbial contamination, shelf-life extension, and environmental sustainability. Chitosan-based films have been successfully used for packaging fresh produce, dairy products, meat, and seafood, offering improved preservation and reduced spoilage. The antimicrobial and antioxidant properties of chitosan help inhibit bacterial growth, delay oxidation, and maintain food freshness, thereby reducing food waste. Furthermore, eco-friendly production techniques and waste valorization align with global sustainability goals by minimizing plastic waste and promoting biodegradable alternatives. With properties like electroactivity, thermosensitivity, and pH responsiveness, chitosan-based films offer versatile solutions for food preservation, including active and intelligent packaging systems that respond to environmental changes. While promising, further research and innovation are needed to optimize their properties, improve cost-effectiveness, and expand their commercial viability in food packaging applications.</p>