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• Instantaneous Cold-boots ⚡

  • While Linux-based systems might take tens of seconds to boot, Unikraft will be up in milliseconds.

• Modular Design 🧩

  • Unikraft boasts a modular design approach, allowing developers to include only necessary components, resulting in leaner and more efficient operating system configurations.

• Optimized for Performance 🚀

  • Built for performance, Unikraft minimizes overheads and leverages platform-specific optimizations, ensuring applications achieve peak performance levels.

• Flexible Architecture Support 💻

  • With support for multiple hardware architectures including x86, ARM, (and soon RISC-V), Unikraft offers flexibility in deployment across diverse hardware platforms.

• Broad Language and Application Support 📚

  • Unikraft offers extensive support for multiple programming languages and hardware architectures, providing developers with the flexibility to choose the tools and platforms that best suit your needs.

• Cloud and Edge Compatibility ☁️

  • Designed for cloud and edge computing environments, Unikraft enables seamless deployment of applications across distributed computing infrastructures.

• Reduced Attack Surface 🛡️

  • By selectively including only necessary components, Unikraft reduces the attack surface, enhancing security in deployment scenarios. Unikraft also includes many [additional modern security features][unikraft-security-features].

• Developer Friendly 🛠️

  • Unikraft's intuitive toolchain and user-friendly interface simplify the development process, allowing developers to focus on building innovative solutions.

• Efficient Resource Utilization 🪶

  • Unikraft optimizes resource utilization, leading to smaller footprints (meaning higher server saturation) and improved efficiency in resource-constrained environments.

• Community-Driven Development 👥

  • Unikraft is an open-source project driven by a vibrant community of over 100 developers, fostering collaboration and innovation from industry and academia.

Install the companion command-line client [kraft][kraft]:

# Install on macOS, Linux, and Windows:
curl -sSfL https://get.kraftkit.sh | sh

See [additional installation instructions][unikraft-cli-install].

Run your first ultra-lightweight unikernel virtual machine:

kraft run unikraft.org/helloworld:latest

View its status and manage multiple instances:

kraft ps --all

View the community image catalog in your CLI for more apps:

kraft pkg ls --update --apps

Or browse through one of the many [starter example projects][unikraft-catalog-examples].

Getting started with Unikraft is easy. Yet, there are so many things to learn and explore! We recommend to choose a focus area first to get started:

• Learn more about what a unikernel is
• Build your first unikernel quickly and easily
• POSIX-compatibility with Unikraft
• Unikraft's inherent security benefits
• Performance of Unikraft compared to other technologies
• Energy efficiency with Unikraft

Looking to get involved? Contributions are welcome! There are weekly communitiy meetings on our Discord server which follow on-going projects. There are also unclaimed projects, open issues, and opportunities for bachelors and masters theses.

Unikraft is a member of the Linux Foundation and is a Xen Project Incubator Project. The Unikraft name, logo and its mascot are trademark of Unikraft GmbH.