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What is a sandbox in software?
A sandbox is a safe, fenced-off space where code can run without being able to harm the rest of your computer.
- Category Building with AI
- Also called sandboxed, sandboxing
- Updated 20 Oct 2026
Sandbox, explained simply
Think of a child's sandbox. Kids can play and make a mess, but the mess stays inside the box.
In software, a sandbox limits what a program can touch. It can't easily read your files or change your settings.
This matters for AI tools that run code for you. A sandbox keeps a mistake from spreading to your real files.
For example, a coding assistant can test a script inside a sandbox first.
On ITG Now, our free tool guides and news stories mention sandboxes when an AI tool runs code or acts on your computer.
Related terms
ContainerVirtual machineAI agentAI coding agentGuardrails
Where you'll see it on ITG Now
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- GuideOpenHuman: Open Source AI Agent App That Runs Lean (2026)
- GuideREA: Reverse Engineer Anything With Your AI Agent (2026)
Questions people ask about Sandbox
Is a sandbox completely safe?
No. It lowers the risk a lot, but bugs in the sandbox itself can sometimes let code escape.
Sandbox vs virtual machine: what is the difference?
A virtual machine is one way to build a sandbox. A sandbox is the wider idea of fencing code in.
Why do AI agents use a sandbox?
Agents can run commands on their own. A sandbox limits the damage if they make a mistake.