microsandbox vs CubeSandbox
Local microVM runtime and self-hosted sandbox service compared
microsandbox and CubeSandbox both isolate untrusted workloads in microVMs. microsandbox is a local runtime with CLI and SDKs, while CubeSandbox is a self-hosted service with APIs compatible with the E2B SDK interface and options for multi-node deployment.
microsandbox: Run Untrusted Workloads in Local MicroVMs
Microsandbox is a Rust microVM runtime for isolating untrusted workloads, including AI agents, user code, and CI jobs. It runs locally on macOS, Linux, and Windows, with hardware virtualization requirements that vary by platform.
CubeSandbox: Run Secure, Fast Sandboxes for AI Agents
CubeSandbox is a self-hostable sandbox service for running untrusted AI-agent workloads in hardware-isolated microVMs. It combines E2B SDK compatibility with snapshots, network controls, and single-node or multi-node deployment.
| microsandbox | CubeSandbox | |
|---|---|---|
| Language | Rust | Go |
| License | Apache-2.0 | NOASSERTION |
| Stars | 8.8k | 12.8k |
| Forks | 494 | 1.2k |
| Last analyzed | Oct 28, 2026 | Oct 3, 2026 |
Key differences
- microsandbox is designed to run locally or on self-hosted systems without a separate service; CubeSandbox is a service with compute nodes and control-plane components to operate.
- microsandbox is written in Rust and offers SDKs for TypeScript, Rust, Python, and Go; CubeSandbox is written in Go and exposes REST APIs compatible with the E2B SDK interface.
- microsandbox supports macOS, Linux, and Windows when the required virtualization support is available; CubeSandbox requires Linux and KVM, with x86_64 in its quick start and ARM64 also described.
- microsandbox lists an Apache-2.0 license; CubeSandbox metadata says NOASSERTION, while its README states Apache License 2.0, so verify its license terms before adoption.
- microsandbox is described as beta software; CubeSandbox marks Kubernetes deployment and some cross-node snapshot workflows as preview.
- microsandbox targets developers embedding sandbox creation in applications as well as agent and platform teams; CubeSandbox is aimed more at infrastructure teams operating sandbox services.
Choose microsandbox if you…
- need a local microVM runtime rather than a separately operated sandbox service.
- want to embed sandbox creation through an SDK in TypeScript, Rust, Python, or Go.
- need to run on macOS or Windows when the required virtualization support is available.
Choose CubeSandbox if you…
- need a self-hosted sandbox service with single-node or multi-node deployment options.
- want REST APIs compatible with the E2B SDK interface.
- need service features such as automatic pause and resume, centralized scheduling, or network egress controls.
Compare the numbers side by side, or add more projects
This comparison is generated with AI from the OSRepos analyses of both projects. Always check each project's repository and documentation before choosing.