Side by side
Kuasar vs youki
Both stand on container runtime software. Which one you can start free with, which one lets you read the code, and what each costs once you pay.
Free plan APILinuxSelf-hosted
Kuasar provides a free, Rust-based runtime for managing container and sandbox lifecycles across Linux infrastructure. Its broad architecture supports several sandbox types, though individual sandboxers have documented support limits.
Visit Kuasar Free plan Linux
Choose youki if you need a free Linux OCI runtime with rootless operation and documented Docker or Podman integration. Its Linux-only local builds and Rust and kernel requirements make it a fit for environments that can meet those prerequisites.
Visit youkiThe facts
| Kuasar | youki | |
|---|---|---|
| Free plan | Yes | Yes |
| Open source | Not published | Not published |
| Runs on | API, Linux, Self-hosted | Linux |
| Lowest paid plan | Not published | Free or on request |
| Plans published | None | 1 |
| Maker | Not published | Not published |
| Website | kuasar.io | github.com |
| On container runtime software | #20 of 28 | #24 of 28 |
Kuasar: what it does well
- Free Apache 2.0 license
- Multiple sandbox types on one node
- Sandbox API abstraction
- Rust implementation
- Integrates with major container runtimes
What to know first
- Linux host required
- Wasm support currently only WasmEdge
- Wasm sandboxes may constrain applications
- Benchmark figures are maker-reported
youki: what it does well
- Implements the OCI runtime specification.
- Supports creating, starting, listing, inspecting, and deleting containers.
- Can run containers as a non-root user.
- Documentation covers Docker and Podman runtime integration.
- Free software under Apache License, Version 2.0.
What to know first
- Local builds are supported only on Linux.
- Building requires Rust edition 2024 and Linux kernel 5.3 or later.
- It does not provide image building or Kubernetes CRI support.
- Windows containers are not supported.