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The best open source alternative to Beam is E2B. If that doesn't suit you, we've compiled a ranked list of other open source Beam alternatives to help you find a suitable replacement. Other interesting open source alternative to Beam is OpenComputer.
Beam alternatives are mainly AI Sandboxes. Browse these if you want a narrower list of alternatives or looking for a specific functionality of Beam.
Provide AI agents with secure, isolated sandboxes featuring real-world tools, code execution, and enterprise-grade security. Trusted by 88% of Fortune 100 companies.

E2B delivers secure cloud environments specifically designed for enterprise AI agents, providing isolated sandboxes where agents can safely execute code, access real-world tools, and perform complex tasks without compromising security.
Key capabilities include:
Perfect for advanced AI use cases:
Trusted by leading organizations including 88% of Fortune 100 companies, E2B integrates seamlessly with OpenAI, Anthropic, Mistral, LangChain, and custom models. The platform offers flexible deployment options including BYOC, on-premises, and self-hosted solutions to meet enterprise compliance requirements.
Provides always-on virtual machines for AI agents with full OS access, persistent state, elastic CPU/memory resizing, and instant checkpoints.

Most AI agents run on disposable sandboxes: spin up, execute a task, disappear. That works for throwaway scripts. It breaks down the moment an agent needs to remember what it installed, keep files between sessions, or pick up mid-task after a pause. OpenComputer is built for that second category.
Each VM is a real machine with a full filesystem and full OS access. It stays running until you explicitly stop or delete it. No timeouts, no teardowns. State persists across sessions without any extra plumbing on your end.
Key capabilities:
OpenComputer targets teams building agent platforms where end users expect continuity. Think coding assistants like Devin or Lovable, where a user's environment needs to remember yesterday's installs and today's open files. Ephemeral sandboxes give isolation. OpenComputer gives isolation plus persistence, without forcing you to manage state externally.
Pricing starts at $0.004 per minute for a 4 GB / 1 vCPU configuration. Disk beyond the included 20 GB is metered separately, and hibernated VMs don't accrue compute charges.
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