Submilli Alternatives

Apps similar to Submilli include OpenShell, which is free and open source. Other options are Cloudflare Sandbox and Monty - Python Interpreter. In total there are three apps like Submilli for Mac, Windows and Linux.

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Submilli alternatives page was last updated Oct 27, 2026

OpenShell
1 like
NVIDIA OpenShell is an open, secure runtime for agents. It governs agent execution, access, and where inference goes.
Cost / License
Free
Open Source (Apache-2.0)
Origin
United States
Since
New
Platforms
Rust
Linux
Mac
Windows
United States
Good alternative?Is OpenShell a good alternative to Submilli?
Cloudflare Sandbox
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The Sandbox SDK enables you to run untrusted code securely in isolated environments. Built on Containers, Sandbox SDK provides a simple API for executing commands, managing files, running background processes, and exposing services — all from your Workers applications.
3 Cloudflare Sandbox alternatives
Cost / License
Free
Open Source
Origin
United States
Since
Since 2025
Platforms
Docker
Node.JS
Cloudflare
Good alternative?Is Cloudflare Sandbox a good alternative to Submilli?
M
M
Monty - Python Interpreter
1 like
A minimal, secure Python interpreter written in Rust for use by AI.
3 Monty - Python Interpreter alternatives
Cost / License
Free
Open Source (MIT)
Origin
United Kingdom
Since
Since 2026
Platforms
Python
Rust
Linux
Mac
Windows
BSD
M
Good alternative?Is this a good alternative to Submilli?

3 of 3 Submilli alternatives