Code executionOnline
E2B
Firecracker microVM sandboxes for agent-generated code, with pause/resume and filesystem snapshots.
- Cold start
- 150 ms
- Compute rate
- 504 $/10k vCPU-h
Open source sandboxes
AgentSandboxes lists 8 open source with source-linked specs.
Results
8 sandbox providers
Computer useOnline
Cua
MIT-licensed computer-use containers for agents: Lume macOS and Linux VMs plus Docker workspaces.
Open sourceOnline
Judge0
GPL-3.0 code-execution engine covering more than 70 languages; self-host it or use the hosted service.
Open sourceOnline
Microsandbox
Open-source libkrun microVM sandbox server, plus a cloud metered in computer-hours.
Browser sessionsOnline
Steel
Apache-2.0 browser API for agents (steel-browser), with hosted sessions and stealth mode.
Open sourceOnline
OpenSandbox
Apache-2.0 open sandbox platform for agent workloads, with container isolation on Docker or Kubernetes.
Open sourceOnline
Piston
MIT-licensed code-execution engine with a free public API, run per job in resource-limited sandboxes.
Code executionOnline
ForeverVM
MIT-licensed stateful Python machines that never expire; idle machines swap to disk and resume on demand.
Open source by city
Related categories
Questions
Which cities have the most open source?
The cities with the most open source are Online, Global (8 sandbox providers).
Published by AgentSandboxes. How we check each sandbox provider.