Sandboxed code execution

Dynamically define compute tasks and run them in a secure environment.

“Using Modal, Codegen has been able to move at lightning speed with full-stack AI development. The product is designed with developer experience front and center, and my team is incredibly happy having it as part of our arsenal.”

Jay Hack, Founder & CEO

“We use Modal to securely run LLM-augmented code on a large scale. Modal’s powerful primitives like sandboxes and file systems have allowed us to focus on our core competencies without having to waste time on our own infra.”

Matt Harpe, Co-Founder

“We had a real challenge running generated code that we couldn’t directly review. Modal Sandboxes let us confidently and safely allow Hunch users to build workflows that execute arbitrary code. Without Modal, we wouldn’t be able to offer this as a flexible solution.”

Ross Douglas, Founder & CEO

Safe code execution

Execution of AI-generated code

Run code snippets created by language models or submitted by users in a secure environment.

LLM evaluations

Test the latest LLM models for safety and quality.

gVisor-based runtime

Rely on strict security and isolation guarantees from our battle-tested containerization technology.

Fully programmable container environment

Universal code execution

Orchestrate and run any kind of code or container image, even if even if it's not Python-based.

Out of the box interactivity

Execute processes in an ongoing sandbox session, and get input/output streaming with each.

Advanced sandbox features

Persistent data management

Maintain stateful data across sessions with dynamically-provisioned network file systems.

Network accessibility

Create tunnels to expose ports inside the sandbox.

Network security

Control over outbound networking.

Try it out

Sandbox a LangGraph agent's code

Run an LLM coding agent that runs its own language models.

Build a stateful, sandboxed code interpreter

Execute untrusted Python code in a sandboxed environment.

Safely run untrusted Node.js, Ruby, PHP, and more

Execute arbitrary code in your language of choice inside a Sandbox.

Run a sandboxed Jupyter notebook

Set up a sandboxed Jupyter server and issue commands via an API.

Ship your first app in minutes.

$30 / month free compute

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