Topics / #microvm
Microvm projects on GitHub
Lightweight virtual machines for sandboxed workloads.
As of , the most-starred Microvm projects on GitHub are OpenSandbox (15.9K stars), CubeSandbox (13K stars) and smolvm (6.8K stars). GitHub.Locker tracks 9 Microvm repositories with 46.9K stars combined. The fastest-growing on October 16 was substrate, with +98 stars in a day.
Hot right now
Most stars gained in a day · Oct 16
+98substrate
agent-substrate/substrate · ★ 5.4KA secure-by-default runtime that hosts AI agents in isolated sandboxes — microVMs or gVisor containers — and runs millions of them on shared infrastructure, with much higher density than standard container runtimes.
OpenSandbox
opensandbox-group/OpenSandbox · ★ 15.9KOpenSandbox is a general-purpose sandbox platform for AI applications that provides multi-language SDKs, unified sandbox APIs, and Docker/Kubernetes runtimes for scenarios like coding agents, GUI agents, agent evaluation, AI code execution, and RL training.
+11CubeSandbox
TencentCloud/CubeSandbox · ★ 13KCubeSandbox is a high-performance, secure sandbox service for running untrusted AI agent code, built on RustVMM and KVM with hardware-isolated MicroVMs.
+9smolvm
smol-machines/smolvm · ★ 6.8Ksmolvm is a CLI tool for running embeddable, portable, branchable virtual machines so you can safely run AI agents and untrusted code locally, with sub-second cold start on macOS, Linux, and Windows.
The all-time top
9 projects · by stars
- 15.9K
#1 · opensandbox-group/OpenSandbox
OpenSandbox
OpenSandbox is a general-purpose sandbox platform for AI applications that provides multi-language SDKs, unified sandbox APIs, and Docker/Kubernetes runtimes for scenarios like coding agents, GUI agents, agent evaluation, AI code execution, and RL training.
- 13K
#2 · TencentCloud/CubeSandboxCubeSandbox
CubeSandbox is a high-performance, secure sandbox service for running untrusted AI agent code, built on RustVMM and KVM with hardware-isolated MicroVMs.
- 6.8K
#3 · smol-machines/smolvmsmolvm
smolvm is a CLI tool for running embeddable, portable, branchable virtual machines so you can safely run AI agents and untrusted code locally, with sub-second cold start on macOS, Linux, and Windows.
- 4

substrate
5.4Kagent-substrate/substrate · GoA secure-by-default runtime that hosts AI agents in isolated sandboxes — microVMs or gVisor containers — and runs millions of them on shared infrastructure, with much higher density than standard container runtimes.
- 5

arcbox
4.2Karcboxlabs/arcbox · RustArcBox is a fast, open-source container and VM runtime for macOS, built from scratch in Rust, that acts as a drop-in Docker replacement while also offering disposable sandboxes for AI agents, native Kubernetes, and full Linux and macOS VMs.
- 6

coop
785trailofbits/coop · Rustcoop is a Rust CLI that spins up disposable, isolated virtual machines so Claude Code and Codex can run with full tool access (Docker, git, compilers, package managers) without putting your host machine at risk.
- 7

nvx
408microsoft/nvx · PythonNVX is an ultra-light micro-VM sandbox for running untrusted workloads with hardware-enforced isolation, built on OpenVMM and running Linux as the guest OS.
- 8
brig
232brig-sh/brig · GoBrig is a Go CLI (brig) with a session daemon (brigd) that runs coding agents inside a microVM sandbox on your own machine, so an unattended agent can only damage the one project you hand it.
- 9

solari-cookbook
192solari-sdk/solari-cookbook · PythonA cookbook of small, runnable example programs for Solari, a service that gives you cloud browsers, sandboxes, and desktop VMs behind a single API key.
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