Sandbox Runtime

What it is

Sandbox Runtime is a tool designed to enforce filesystem and network restrictions on arbitrary processes at the OS level without requiring a container. Written in TypeScript, it provides a lightweight alternative to containerization by allowing developers to run processes with specific restrictions, enhancing security and control. The tool is open-source under the Apache-2.0 license and has a growing community with over 5,000 stars on GitHub. It is particularly useful for developers looking to isolate processes without the overhead of full container environments.

Provides OS-level sandboxing without requiring containers.

When it fits — and when it doesn’t

Known weaknesses

Each one links to the public issue, changelog or docs page it came from, where we have one.

1. 01

   Limited to TypeScript

   Primary language is TypeScript.

2. 02

   High number of open issues

   184 open issues on GitHub.

3. 03

   Requires OS-level integration

   Operates at the OS level for restrictions.

What it does well

• Lightweight alternative to containers

  Does not require containerization, reducing overhead.

• Open-source with active community

  Over 5,000 stars and 418 forks on GitHub.

• Flexible filesystem and network restrictions

  Allows specific process-level restrictions.

Pricing

Free tier

Yes

Paid from

—

Model

N/A

Enterprise plan

No

Pricing last confirmed Sep 28, 2026.