Best Apptainer Alternatives in 2026
Updated
20 tools from container engines ranked against Apptainer on the same published basis.
- 1Apptainer vs BuildKit
- 2Apptainer vs Docker Desktop
- 3Apptainer vs Incus
- 4Apptainer vs LXD
- 6Apptainer vs gVisor
- 7Apptainer vs Podman
- 8Apptainer vs containerd
- 9Apptainer vs crun
- 10Apptainer vs Buildah
- 11Apptainer vs Moby
- 12Apptainer vs Kata Containers
- 13Apptainer vs ocijail
- 14Apptainer vs Mirantis Container Runtime
- 15Apptainer vs SingularityCE
- 16Apptainer vs youki
- 17Apptainer vs balenaEngine
- 18Apptainer vs CRI-O
- 19Apptainer vs Enroot
- 20Apptainer vs LXC
- 21Apptainer vs PouchContainer
Apptainer alternatives compared
| # | Tool | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | BuildKit | 7.5 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 2 | Docker Desktop | 7.5 | Free plan | $9/mo | Linux, Mac, Web, Windows |
| 3 | Incus | 7.5 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 4 | LXD | 7.5 | Free plan | $2.08/mo | API, Linux, self-hosted, Web |
| 6 | gVisor | 7.1 | Free plan | Free | Linux, self-hosted |
| 7 | Podman | 7.1 | Free plan | Free | API, Linux, Mac, self-hosted, Windows |
| 8 | containerd | 7.0 | Free plan | Free | Linux, self-hosted, Windows |
| 9 | crun | 7.0 | Free plan | Free | Linux, self-hosted |
| 10 | Buildah | 6.9 | Free plan | Free | API, Linux, self-hosted |
| 11 | Moby | 6.8 | No | — | API, Linux, Mac, self-hosted, Windows |
| 12 | Kata Containers | 6.7 | Free plan | Free | Linux, self-hosted |
| 13 | ocijail | 6.1 | No | — | self-hosted |
| 14 | Mirantis Container Runtime | 6.0 | No | — | Linux, Windows |
| 15 | SingularityCE | 6.0 | No | — | Linux |
| 16 | youki | 6.0 | No | — | Linux |
| 17 | balenaEngine | 5.9 | No | — | Linux |
| 18 | CRI-O | 5.9 | No | — | Linux |
| 19 | Enroot | 5.9 | No | — | Linux |
| 20 | LXC | 5.9 | No | — | Linux |
| 21 | PouchContainer | 5.9 | No | — | Linux |
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Questions about Apptainer alternatives
What is the best alternative to Apptainer?
BuildKit, number 1 in container engines with a score of 7.5 out of 10. The others here: Docker Desktop, Incus, LXD and 16 more.
What is the best free alternative to Apptainer?
BuildKit is the best-ranked alternative with a free plan. 10 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked on what each maker publishes, the fullest spec sheet first: how deeply the product is documented, the platforms it runs on, a free tier or trial to test it, and its standing.