Best Open Source sandbox Libraries
A curated list of the most popular GitHub repositories tagged with sandbox. Select any project to visualize its architecture and dive into the codebase using RepoMind's AI engine.
#1firecracker-microvm/firecracker
Secure and fast microVMs for serverless computing.
#2google/gvisor
Application Kernel for Containers
#3bytecodealliance/wasmtime
A lightweight WebAssembly runtime that is fast, secure, and standards-compliant
#4omnigent-ai/omnigent
Omnigent is an open-source AI agent framework and meta-harness: orchestrate Claude Code, Codex, Cursor, Pi, and custom agents — swap harnesses without rewriting, enforce policies and sandboxing, and collaborate in real time from any device.
#5astrid-runtime/astrid
Astrid is a portable, capability-secure operating system for composable software.
#6ntegrals/openbrowser
Let AI agents browse the web. An autonomous toolkit for browser-based AI agents.
#7react-cosmos/react-cosmos
Sandbox for developing and testing UI components in isolation
#8pydantic/monty
A minimal, secure Python interpreter written in Rust for use by AI
#9smol-machines/smolvm
An embeddable, portable, branchable virtual machine to safely run Agents locally.
#10zerocore-ai/microsandbox
opensource secure local-first sandboxes for ai agents
#11e2b-dev/runtime
The runtime behind every E2B stack: Cloud, Enterprise, and your own machine.
#12okou-ai/okou
Okou connects to the tools your team already uses and does the work — across marketing, sales, engineering, and operations, under your control.
#13trailofbits/coop
Isolated VM environment for running Claude Code and Codex
#14coipond/coi
Give the agent a machine. Just not yours. Each AI coding agent gets its own isolated machine with root, Docker, and systemd - active defense detects and stops threats automatically.
#15cocoonstack/cocoon
Lightweight MicroVM engine built on Cloud Hypervisor. Features include OCI and cloud image support, instant snapshot and clone via reflink, Windows 11 guest support, CNI networking with TC redirect, memory balloon, hugepages, and a Docker-like CLI. Designed for AI sandboxing, cloud desktops, and ephemeral dev environments.
#16PerryLink/dsh-auto-review
Second-model AI auto-review for DeepSeek Harness approval requests: a read-only reviewer subagent returns structured allow/deny verdicts with reasons, fail-closed by default, fully auditable from the session log (approval/asked -> autoReview/verdict -> approval/decided).
#17gebruder/wirken
The enterprise gateway for autonomous agents. Identity management, per-channel isolation, credential vault, per-session tamper-evident audit log.
#18vstorm-co/pydantic-ai-backend
File Storage & Sandbox Backends for Pydantic AI: console tools for file operations, Docker-isolated sandboxes for safe execution, and permission system with presets for access control. Enables secure multi-user handling and testing in agents via in-memory, local, or containerized storage.
#19Pikopod/pikopod
A sandbox for the third-party APIs you depend on. Built from the provider's spec, it fails on purpose, and it replays the exact failure production hit.
#20arshil-564/Factory-Overseer-Suite
Best Captain of Industry Trainer Menu & Cheat Mod 2026 for Unlimited Resources