Fuel cell electric vehicles (FCEVs) are gaining more popularity due to the growing need for eco-friendly transportation options. The FCEV has been able to also resolve the problem of range and weight since they usually have a long driving range and high energy density to volume. The dc-dc converter is one of the most important components in the embedding of fuel cells in electric vehicles. In order to efficiently handle and tackle power distribution in the system and optimize system performance to the extent an ample high voltage boost was necessary. This paper presents the design and implementation of a high step-up DC-DC converter intended for use in FCEV applications. It analyzes the diversity of the topologies of such converters, disclosing the benefits of soft-switching techniques to raise efficiency and lower the characteristics defining current ripple and electric stress. By simulating and testing our converter design it show that it can substantially increase voltage output while keeping efficiency high, under operational scenarios. The outcomes illustrate the converter's ability to enhance the efficiency and performance of fuel cell systems in vehicles paving the way for more efficient transportation options.