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Sandboxer vs Kedge

Kedge is a cloud platform for hosting sites, apps and databases that also offers sandboxes, dev machines and persistent agent workspaces, all in hardware-isolated VMs. Its sandboxes expire after minutes to an hour and have no ingress, whereas Sandboxer sandboxes are persistent full VMs with public URLs per port. Pick Kedge to host apps across ten regions alongside its dev machines; pick Sandboxer for long-lived agent VMs with any port exposed.

Checked against Kedge's public docs on October 24, 2026. Sources are linked in the table and listed below.

At a glance

Sandboxer and Kedge compared
CapabilitySandboxerKedge
IsolationmicroVM
Cloud Hypervisor, its own kernel
hardware-isolated VM with its own Linux kernel
Hypervisor not named.
Full Linux with root
Ubuntu 24.04, sudo, systemd
Docker inside
Preinstalled
Nested virtualization (/dev/kvm)
Pause and resume with memory
Running processes come back
Fork a sandbox
Copy-on-write disk copy that boots fresh
HTTPS URL per port
Private with a token, or public
Docs state a sandbox has no ingress (apps are served separately at public HTTPS URLs).
Longest sessionNo limit on paid plans
Auto-stop is up to 30 days or off
5 min idle expiry; up to 1 h TTL
Sandbox expires 5 minutes after its last command unless ttl_seconds (max 1 hour) is set; one command is capped at 10 minutes.
BillingPer second, flat rate per size
Stopped sandboxes are free
per second, vCPU-month and GB-month rates (estimates)
Billing page does not say whether sandboxes are billed the same way.
GPUs
Self-host or open source
RegionsUS East (Virginia) and EU Central (Finland)ten compute regions plus a Los Angeles edge point
Falkenstein, Helsinki, Virginia, Oregon, Sao Paulo, Tokyo, Singapore, Mumbai, Sydney, Cape Town.

= not documented publicly.

Where Kedge is strong

  • Ten compute regions across Europe, the Americas, Asia, Africa and Oceania.
  • One platform for apps, databases, handlers, CI runners, dev machines and sandboxes.
  • Cold restore of idle apps from a snapshot at a 33 ms fleet median, per Kedge's homepage.
  • Every instance, handler, sandbox and CI job runs in a hardware-isolated VM with its own kernel.

Where Sandboxer differs

  • Kedge sandboxes expire after 5 idle minutes or at most 1 hour and cannot take inbound traffic; Sandboxer sandboxes can run with no time limit on a paid plan and expose any port.
  • Kedge is an app-hosting platform first; Sandboxer is built around agent sandboxes with coding agents preinstalled.
  • Kedge's published prices are estimates for a future paid service during a public preview.
  • Kedge docs do not mention root, Docker or nested virtualization inside sandboxes.

Pick Kedge if

  • You want to host web apps, databases and handlers in many regions.
  • You need short, disposable eval sandboxes spread across a global fleet.
  • You want agents and dev machines on the same platform as your deployed app.

Pick Sandboxer if

  • You need machines that persist for hours or days and keep processes across stop and resume.
  • You need to reach a service inside the sandbox over HTTPS.
  • You need Docker, systemd and nested KVM in a full Ubuntu VM.

Sources

Products change. If something here is out of date, email hello@sandboxer.com and we'll fix it. Kedge is a trademark of its owner. Sandboxer is an independent product and is not affiliated with Kedge.

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