OpenSandbox
opensandbox-group
Secure, fast, extensible sandbox runtime for AI agents - multi-language SDKs, Docker/Kubernetes-native.
What is OpenSandbox?
OpenSandbox is a general-purpose sandbox runtime for AI agents with SDKs for Python, Java/Kotlin, JS/TS, C#/.NET and Go. It runs on Docker and Kubernetes with built-in code interpreters, browser automation, shell execution and lifecycle management, and is listed on the CNCF Landscape.
Pros & Cons
Pros
- Multi-language SDK coverage and CNCF listing signal production-grade ambitions
- Very active - frequent releases including recent ones
- Kubernetes-native with an OpenSSF Best Practices badge
Cons
- Broad scope means more moving parts and higher operational overhead
- SDK-only access - no UI or visual tooling documented
- Less discovered than commercial alternatives with larger ecosystems
License
Apache-2.0 (OSI-open)
When it is interesting
Platform teams building multi-language agent infrastructure needing a self-hostable, Kubernetes-native sandbox with SDK-level control.
When it is too early
Solo developers wanting a quick local sandbox without Kubernetes setup.
Commercial alternative & related
- Commercial counterpart: E2B / Modal
This repo featured in the 2026-07 edition of the Open-Source AI Radar.
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