Interactive Embeddable Environments, Reimagined!

Sandbox for Executing User Code & Apps Right in the Browser

Embed interactive terminals and code sandboxes directly into your product or docs. Execute untrusted code securely via API or AI agents in a hosted environment. Spin up full Kubernetes-backed applications in-browser with isolated, scalable containers designed for experimentation, education, and integration.

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Secure Execution

Execute arbitrary code in isolated containers without compromising your application's security or performance.

Multi-language Support

Run code in multiple programming languages, as well as Docker and Kubernetes instances, all within the same secure environment.

Lightning Fast

Sessions start within 2 seconds, ensuring your applications remain responsive and your users stay engaged.

Flexible Integration

Integrate via a straightforward API or embed terminal sessions directly in your application's interface.

Short & Long Running

Support for both quick code execution and long-running tasks, adapting to your application's specific needs.

AI Agent Ready

Seamlessly integrate with AI agents to expand your application's capabilities with secure code execution.

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Be the first to know when Contained.dev launches and get exclusive early access to our secure code execution platform.