microsandbox
Hacker ApprovedShares rank 5 of 17 agent sandboxes by recommenders
Open-source microVM sandbox for AI agents, praised for fast startup and fine-grained network policies. Caveats: early-stage and no GPU support.
Open-source microVM sandbox for AI agents, praised for fast startup and fine-grained network policies. Caveats: early-stage and no GPU support.
15 people gave an opinion
- recommend it
- 13
- criticize it
- 2
- approval share
- 87%
Recommended in 6 of 13 months
- November 2025: not recommended
- December 2025: not recommended
- January 2026: not recommended
- February 2026: not recommended
- March 2026: recommended
- April 2026: not recommended
- May 2026: recommended
- June 2026: recommended
- July 2026: recommended
- August 2026: recommended
- September 2026: not recommended
- October 2026: recommended
- November 2026: not recommended (month in progress)
Why it carries the badge
- 13 people recommend itNeeds 10 or more, met.
- 6.5 recommenders for every criticNeeds 2 to 1 or better, met.
- Recommended in 6 of 13 monthsNeeds 4 or more, met.
The same three rules apply to every product, and the badge can’t be bought. How the badge works
What people say about it
The reasons people give, with the number of comments that give each one. Open a reason to read what they said.
Why people recommend it
Each mark is one comment
Preferred over other open-source sandboxes
“we think https://github.com/superradcompany/microsandbox/ is the closest OSS to it and we have a great DX and improving”
Comment from 11 Aug 2026 in “Docker Sandboxes – Disposable, isolated sandboxes for AI agents” “I can recommend microsandbox. More mature than smolmachines.”
Comment from 8 Jun 2026 in “Podman 6: machine usability improvements” “smolvm or microsandbox are great options”
Comment from 18 Aug 2026 in “Ask HN: Alternatives to GitHub” Fast startup and light resource use
“Microsandbox microVMs start super fast though, and so far I have not had an issue with resource consumption.”
Comment from 4 Aug 2026 in “Show HN: Isolade, a local-first coding agent workbench with secretless microVMs” “much lighter, and more elastic”
Comment from 23 Oct 2026 in “OpenShell – A safe, private runtime for fleets of autonomous AI agents” Fine-grained network policies and security tools
“microsandbox is designed to work with most security products”
Comment from 11 Aug 2026 in “Docker Sandboxes – Disposable, isolated sandboxes for AI agents” “Fine grained network policies is supported by microsandbox”
Comment from 9 Oct 2026 in “MXC - a sandboxed code execution system” Solid foundation and SDK direction
“They're working on an SDK-first experience so you can build whatever applications you want on top”
Comment from 22 May 2026 in “We Reverse-Engineered Docker Sandbox's Undocumented MicroVM API” “it looks to have a solid foundation”
Comment from 27 Jun 2026 in “Run isolated sandboxes with full lifecycle control: AWS introduces MicroVMs”
What people warn about
Each mark is one comment
Early-stage and still maturing
“been watching microsandbox but its pretty early”
Comment from 9 Mar 2026 in “Agent Safehouse – macOS-native sandboxing for local agents” Lacks GPU support
“One thing it's lacking is GPU support.”
Comment from 9 Jun 2026 in “Podman 6: machine usability improvements”
Other agent sandboxes people recommend
The four most recommended other agent sandboxes, with the same counts for each, so you can compare like for like. The tick on each bar marks the 2 to 1 line the badge needs.
| Product | Recommend | Criticize | Approval | Months | Owned | Badge |
|---|---|---|---|---|---|---|
| Docker Sandboxes | 50 | 39 | 56% | 9 | — | — |
| NVIDIA OpenShell | 36 | 8 | 82% | 9 | — | Approved |
| Claude Code sandbox | 16 | 18 | 47% | 6 | — | — |
| MXC (Microsoft Execution Containers) | 15 | 17 | 47% | 1 | — | — |
| microsandboxThis page | 13 | 2 | 87% | 6 | — | Approved |
What people said
18 of the 19 comments that mention it, newest first. Each links to the original comment.
“much lighter, and more elastic”
“I run --yolo but I'm running opencode in a VM”
“Fine grained network policies is supported by microsandbox”
“It is unsuitable for running untrusted code on Linux.”
“microsandbox by default speak ssh without you needing to have a ssh server in the vm”
“smolvm or microsandbox are great options”
“microsandbox is designed to work with most security products”
“we think https://github.com/superradcompany/microsandbox/ is the closest OSS to it and we have a great DX and improving”
“It sounds like Microsandbox would be the perfect fit for what you are describing.”
“Microsandbox microVMs start super fast though, and so far I have not had an issue with resource consumption.”
“Only folks i’ve seen solve these are folks who run the sandboxes locally and take that to the cloud”
“very simple to get started with at least”
“it looks to have a solid foundation”
“One thing it's lacking is GPU support.”
“I can recommend microsandbox. More mature than smolmachines.”
“They're working on an SDK-first experience so you can build whatever applications you want on top”
“been watching microsandbox but its pretty early”
“I've been trying to get microsandbox to play nicely.”
Counts come from 1,795,640 Hacker News comments, November 2025 to November 2026. How we count. Report a mistake.