Northflank Sandboxes
NorthflankRuns untrusted and AI-generated code in microVM-backed sandboxes isolated with Kata Containers and gVisor, booting in under a second with no forced session time limit. Sandboxes sit inside Northflank's wider runtime platform alongside services, jobs, databases and GPU workloads, and can run on Northflank's cloud or inside a customer VPC. Northflank Ltd operates it as a commercial managed service.
Openness
1 high confidence- license
- Proprietary
- service
- proprietary(Northflank managed SaaS)
- source
- closed
- isolation
- microVM
Northflank publishes no source for its sandbox platform. Sandboxes run on Northflank Cloud, inside a customer VPC or on premises as a commercial deployment option, and the microVM layer is built on third-party open projects, Kata Containers and gVisor, rather than on anything Northflank releases.
- https://northflank.com/ recorded 2026-09-29
Homepage of the commercial Northflank platform, headed "One governed path from AI-generated code to production, across any cloud, VPC, or on premises." with no source repository or license offered; the body has no open source, self-host, license or proprietary terms, and its only GitHub mention is the integration line "Works with GitHub, GitLab and Bitbucket".
- https://northflank.com/product/sandboxes recorded 2026-09-29
Sandboxes product page states "Run Northflank sandboxes on our infrastructure or inside your own VPC." and names "Kata Containers or gVisor" as isolation; the body has no open source, self-host or license terms, and its only GitHub mention is the integration line "Works with GitHub, GitLab and Bitbucket", so no source release or open runtime is offered.
Adoption
3 medium confidenceNorthflank publishes only platform-wide adoption figures — developers and organizations across the whole product, not Sandboxes specifically — and the newer Sandboxes feature is read against that base instead. Its one Sandboxes-specific claim, a monthly count of microVMs run, is a vendor figure with no countable artifact behind it, so no reach is recorded.
- https://northflank.com/ recorded 2026-09-29
Homepage platform-level figures: "Trusted by 2,000+" start-ups and enterprises and "Developers in production" (100k+), with no Sandboxes-specific usage figure.
- https://northflank.com/product/sandboxes recorded 2026-09-29
Sandboxes page claims "running millions of microVMs monthly since 2021" and "Run 10,000+ isolated workloads", vendor figures with no per-customer or per-session usage count.
Capability
4 medium confidenceNorthflank Sandboxes runs each workload in its own microVM through Kata Containers or gVisor, boots a microVM in under a second, supports ephemeral or persistent sandboxes with no forced time limit, and can deploy inside a customer VPC. Its isolation and start-up speed match the leading sandbox platforms, but its evidence of scale is platform-wide rather than specific to sandboxes.
- https://northflank.com/ recorded 2026-09-29
Homepage environment animation lists "microVM 200ms" among platform events next to "Bring Your Own Cloud", and a customer testimonial cites "Compliant Cloud via BYOC and optional on-prem deployment".
- https://northflank.com/product/sandboxes recorded 2026-09-29
Sandboxes page: "Boot a microVM in under a second" with "Every workload runs in its own microVM with Kata Containers or gVisor." and "Sandboxes can be ephemeral or persistent."
- https://northflank.com/product/sandboxes recorded 2026-09-29
Sandboxes page: "No forced time limits—run for seconds or weeks" and "Bring-your-own-cloud deployment in your VPC or use our managed infrastructure."
- https://www.computesdk.com/benchmarks/sandboxes/ recorded 2026-08-13
ComputeSDK TTI leaderboard (independent, 2026-08-07 run, 24 providers): Northflank median time-to-interactive 0.25s, P95 0.29s, P99 0.30s, 100% success; 3rd by composite score
Verified 2026-09-29