Nanofiber-based systems have emerged as a groundbreaking approach in the field of regenerative medicine, offering immense potential for tissue engineering and regenerative therapies. These systems, composed of nanoscale fibers, provide a unique platform for mimicking/bio-mimicking the complex structures and functionalities of native tissues, enabling the regeneration of injured tissues. This letter aims to provide a brief overview of nanofiber-based systems in regenerative medicine, discovering their importance, design, and fabrication techniques, characterization, biocompatibility, applications, challenges, and future directions as well as discussing key concepts and techniques involved in the development of this innovative tool.