MAFFT is a widely used software tool for multiple sequence alignment, which helps researchers compare and analyze biological sequences, such as DNA, RNA, or proteins. It employs various algorithms to align sequences efficiently, making it suitable for both small and large datasets. The tool is particularly known for its speed and accuracy, allowing users to handle complex alignments with ease. MAFFT is available as a web server and can also be downloaded for local use, making it accessible for scientists and bioinformaticians worldwide.