List of the Top 2 On-Prem Function as a Service (FaaS) Providers in 2025

Oracle Cloud Infrastructure (OCI) Functions offers a serverless computing environment that empowers developers to create, run, and scale applications seamlessly, without needing to manage the backend infrastructure. Built on the open-source Fn Project, it supports multiple programming languages including Python, Go, Java, Node.js, and C#, enabling a broad range of functional development. With OCI managing the automatic provisioning and scaling of resources required for execution, developers can deploy their code effortlessly. The platform also includes provisioned concurrency, ensuring functions are primed to respond to requests with minimal latency. A diverse library of prebuilt functions is available, allowing users to easily execute common tasks without needing to build from the ground up. Functions are packed as Docker images, and skilled developers can leverage Dockerfiles to establish custom runtime environments. Moreover, integration with Oracle Identity and Access Management provides fine-grained control over user permissions, while OCI Vault guarantees the secure storage of sensitive configuration data. This unique blend of features not only enhances the development process but also significantly improves application performance and security. As a result, OCI Functions stands out as a robust solution for developers aiming to innovate and deploy applications in the cloud.

OpenFaaS® streamlines the process of deploying serverless functions and pre-existing applications on Kubernetes, enabling users to leverage Docker and avoid vendor lock-in. Its flexibility allows it to run seamlessly on any public or private cloud, facilitating the development of microservices and functions across numerous programming languages, including older code and binaries. The platform features automatic scaling based on demand and can even scale down to zero when idle. Users can choose to develop on their personal laptops, make use of on-premises infrastructure, or establish a cloud cluster, while Kubernetes manages the underlying complexities. This capability empowers developers to build a scalable and resilient event-driven serverless architecture tailored to their software needs. OpenFaaS also invites users to dive in quickly, enabling them to start experimenting within just 60 seconds and write and deploy their first Python function in roughly 10 to 15 minutes. Afterward, participants can enhance their understanding through the OpenFaaS workshop, which offers a series of self-paced labs designed to impart critical skills and insights about functions and their practical applications. Moreover, the platform cultivates a community that promotes sharing, reusing, and collaborating on functions, while simultaneously reducing repetitive code through a template store that simplifies the coding process. This collaborative ecosystem not only boosts productivity but also significantly enriches the overall development experience, fostering innovation and creativity among users. Ultimately, OpenFaaS stands out as a powerful tool for both new and experienced developers alike.