1VMTool vs OrbStack
These two are often shortlisted together and they should not be. OrbStack is a container platform that also runs Linux machines; 1VMTool is a hypervisor front end whose managed Docker engine is new and deliberately narrower.
Side by side
| 1VMTool | OrbStack | |
|---|---|---|
| Docker and Compose | A managed Debian engine since 0.3.0 — private socket, own Docker context, workspace grouped by Compose project. Runs inside a VM; its RAM counts against the library budget. | The entire point, and very good at it. |
| Snapshot mechanism | APFS clone of the disk bundle. Take and restore in well under a millisecond, independent of disk size. | Not a documented machine-snapshot feature. |
| Windows guests | Experimental first-party engine. | None; explicitly out of scope. |
| macOS guests | Supported. | None. |
| Isolation | A full virtual machine with its own kernel and disk. | Shared-kernel Linux machines; their docs say this is not a security boundary. |
| Speed to a Linux shell | Create from a template or a prepared recipe — still a full VM boot. | Faster for a supported distribution. |
| Command line | 1vm covers every GUI action. | orb and a drop-in docker command. Excellent. |
| Price | One-time purchase. | Free personally; $96 per user per year commercially. |
Highlighted cells mark the stronger side of each row. Competitor details checked September 2026 against vendor documentation — pricing and features move, so verify anything decision-critical at the source.
When you should stay on OrbStack
Your actual job is docker compose and a couple of Linux boxes with excellent filesystem and network integration and low idle CPU. 1VMTool does ship a managed Docker engine now — a Debian VM with its own socket and an owned Docker context — but it runs containers inside a machine it provisions, where OrbStack's entire design is that workload. For container-first work OrbStack remains materially better.
Where OrbStack frustrates people
- It is not a hypervisor product. There are no Windows guests and no macOS guests, and Linux machines share a kernel rather than being fully isolated.
- Machine snapshots are not a documented, shipped feature. The long-standing request drew a reply that data snapshots might be possible but runtime snapshots probably were not.
- Personal use is free but using the same app at work needs a paid seat, which catches people out.
- Booting an arbitrary ISO or a custom root filesystem is a second-class path; the curated distribution picker is the product.
Why someone moves to 1VMTool
- You need a real virtual machine with its own kernel and disk rather than a shared-kernel Linux environment.
- You need macOS or Windows guests, neither of which OrbStack offers.
- You want snapshots and rollback as first-class, documented features.
- You want to boot your own ISO or image rather than choosing from a catalog.
Frequently asked questions
Should I replace OrbStack with 1VMTool for Docker?
Not for a container-first job. Since 0.3.0 1VMTool ships a managed Docker engine — a real socket, an owned Docker context and a Compose-aware workspace — so `1vm docker` and the host CLI do work. But it is Docker inside a VM, there is no Kubernetes, and it is much younger than OrbStack's engine. If containers are the job, OrbStack still wins outright.
Can OrbStack run Windows?
No, and the maintainers have said it is out of scope. If you need Windows on ARM you need Parallels, Fusion, UTM, VirtualBox or 1VMTool's experimental engine.
Which is faster to get a Linux environment?
OrbStack, for a distribution it already supports. 1VMTool is the better answer when you need a real disposable disk, an ISO install, a macOS guest, or reset-to-snapshot.
Try it against your own workflow
The limits are stated on every screen before you commit to anything, which is the fastest way to find out whether this is your tool.