Fluent Bit is an open-source software tool designed to collect, process, and forward log data from various computer systems and applications. It is lightweight and highly efficient, making it ideal for use in cloud environments and containerized platforms like Kubernetes. Fluent Bit helps organizations gather important operational data in real time, enabling better monitoring, troubleshooting, and security analysis. Its flexibility allows integration with many storage and analysis systems, making it a popular choice for modern IT infrastructures.