Hybracter is a new command-line tool designed for automated, scalable, and accurate assembly of complete bacterial genomes using a long-read first approach. It can be run as a hybrid assembler or a long-read-only assembler. The tool compares favorably to existing automated hybrid and long-read-only assembly tools, demonstrating superior accuracy and speed in both modes. Hybracter excels in recovering complete plasmid genomes, outperforming other tools in both hybrid and long-read-only modes. It also addresses the challenge of small plasmid recovery, which is a common issue with long-read assemblers. Hybracter is highly efficient and can be easily parallelized for large-scale analyses, making it suitable for high-performance computing clusters and cloud environments. The tool is freely available as open-source software, enhancing its accessibility and utility in bacterial genomics research.Hybracter is a new command-line tool designed for automated, scalable, and accurate assembly of complete bacterial genomes using a long-read first approach. It can be run as a hybrid assembler or a long-read-only assembler. The tool compares favorably to existing automated hybrid and long-read-only assembly tools, demonstrating superior accuracy and speed in both modes. Hybracter excels in recovering complete plasmid genomes, outperforming other tools in both hybrid and long-read-only modes. It also addresses the challenge of small plasmid recovery, which is a common issue with long-read assemblers. Hybracter is highly efficient and can be easily parallelized for large-scale analyses, making it suitable for high-performance computing clusters and cloud environments. The tool is freely available as open-source software, enhancing its accessibility and utility in bacterial genomics research.