No. 6 of 18 ·JavaScript Package Managers

Deno Sandbox

Web · API · paid plans from $0.20/mo

Freedom report

Two barsScore 6.4

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely1 of 6 device platforms
DocumentedPlans, terms and facts published

Deno Sandbox is ranked #6 of 18 in JavaScript package managers on Freedom251. It runs on API, Web. There is a free plan. Paid plans start at $0.20/mo.

Deno Sandbox plans and pricing

All plans

Free Free $0 /month Sandbox not included · 1M requests/month · 10 hr active CPU deno.com · 30 Sept 2026

Deno Sandbox usage $0.20/mo Volume usage: $0.20/GiB-month CPU time · memory · persistent volume usage deno.com · 30 Sept 2026

Pro $20/mo $20 /month Sandbox included · 3 concurrent sandboxes per region · 5 GiB volume storage deno.com · 30 Sept 2026

Builder $200/mo $200 /month Sandbox included · 20 concurrent sandboxes per region · 50 GiB volume storage deno.com · 30 Sept 2026

Enterprise Not published Custom Custom sandbox concurrency and volume storage · contact sales deno.com · 30 Sept 2026

Compared on JavaScript package managers

Free plan: Yes
Paid from: $20/mo
Deployment target: edge
Bandwidth limit: 200 GB/mo
Edge locations: 2 locations

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The record

What it is: Deno Sandbox is an SDK for creating and managing secure, isolated Linux microVMs in the cloud on Deno Deploy.
Target workloads: Deno identifies AI agents, copilots, plugin systems, collaborative IDEs, ephemeral CI runners, smoke tests, user supplied code, and preview environments as use cases.
Runtime support: The SDK is tested and supported on Deno latest stable, Node.js 24+, and Python 3.10 or later.
Packages and API: The JavaScript SDK is available on npm and JSR, the Python SDK is on PyPI, and direct API access is available through a REST API.
Isolation: Each sandbox is a Linux microVM isolated at the hypervisor level with its own filesystem, network stack, and process tree.
Outbound access: Outbound networking is unrestricted by default, and an allowlist can restrict connections to specified hosts.
Secret handling: Secrets remain placeholders inside the sandbox and are substituted only for outbound requests to approved hosts.
Storage cleanup: Sandbox files are ephemeral unless a volume is mounted, and the VM is destroyed and its disk wiped when its last reference is dropped or it is killed.
Resource limits: The documented limits include 2 vCPU, 10 GB ephemeral disk, configurable 768 MB to 4096 MB memory, and a maximum 30-minute lifetime per sandbox.
Concurrency limit: The docs state a default prerelease limit of 5 concurrent sandboxes per organization and invite users to contact Deno for a higher limit.
Regions: The docs list Amsterdam and Chicago as supported sandbox regions.
Connectivity and development: Sandboxes can expose a dev server over HTTP, provide SSH access, and expose an on-demand VS Code editor.
Observability: Commands, HTTP requests, and SSH sessions can be traced in the Deno Deploy dashboard.
Support: The pricing page includes community support on every listed plan, email support on Pro, Builder, and Enterprise, and an email support SLA on Enterprise.
Price from: $0.20/mo

Where it ranks on Freedom251

Best JavaScript Package Managers in 2026#6 of 18

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Sources

deno.com/deploy/sandbox· checked 30 Sept 2026
docs.deno.com/sandbox/· checked 30 Sept 2026
docs.deno.com/sandbox/security/· checked 30 Sept 2026
deno.com/deploy/pricing· checked 30 Sept 2026