UTMStack, an open-source SIEM solution

Open Source Advantage

Being open source gives UTMStack a significant advantage in terms of transparency, flexibility, and cost-effectiveness. With its open nature, users can access the source code, modify it as needed, and even contribute to its development. This fosters a vibrant community and ensures that the tool stays relevant and adaptable to various use cases.

https://utmstack.com/top-five-free-and-open-source-siem/