The depletion of fossil fuels and the global warming crisis have generated increasing interest in the development of new, low-carbon energy sources. Hydrogen is increasingly seen as a potentially zero-carbon and zero-pollution energy vector that can substitute fossil fuels in residential, transport, industrial and commercial sectors with hard-to-abate emissions, enabling a transition to a net-zero carbon circular economy. To meet the ambitious emission reduction targets set in the COP26 Glasgow agreement, global annual greenhouse gas emissions will need to be reduced by 45% by 2030 from 2010 levels and to net zero by 2050. Producing low-carbon hydrogen to use as a clean energy carrier is an important step towards a decarbonized economy. Plasma pyrolysis is an emerging technology that has great potential for the large-scale production of low-carbon and affordable hydrogen. The produced hydrogen can be safely stored and transported over long distances using liquid organic hydrogen carriers, organic molecules that can store and release hydrogen through easy-to-handle chemical reactions, and can then be used as a chemical feedstock or fuel in many applications. There is still a long way to go to bring this technology to commercial maturity on a global scale, but plasma pyrolysis is currently a promising option for the production of zero-carbon (or even carbon-negative) hydrogen from different types of feedstock with minimal environmental impact.