Sandboxer vs UpCloud

UpCloud is a cloud provider offering Cloud Servers on predefined plans, plus GPU Servers, backups and managed services. It is general infrastructure rather than an agent sandbox. Pick UpCloud for European locations and conventional VPS hosting; pick Sandboxer for ready-made agent sandboxes.

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

At a glance

Sandboxer and UpCloud compared
Capability	Sandboxer	UpCloud
Isolation	microVM Cloud Hypervisor, its own kernel
Full Linux with root	Ubuntu 24.04, sudo, systemd	Docs describe Linux or Windows servers with full control.
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
Longest session	No limit on paid plans Auto-stop is up to 30 days or off
Billing	Per second, flat rate per size Stopped sandboxes are free	hourly Docs: Cloud Servers are billed by the hour.
GPUs		GPU Servers are a separate product for AI/ML.
Self-host or open source
Regions	US East (Virginia) and EU Central (Finland)	Multiple, including Copenhagen and Stavanger Changelog also mentions expansion to Frankfurt and Warsaw; full list not read.

= not documented publicly.

Where UpCloud is strong

Hourly billing of Cloud Servers.
Starter, Premium and Cloud Native plan families (Cloud Native bills CPU, memory and traffic with storage and IPs separate).
Separate GPU Servers product.
Simple Backup for automated server backups.

Where Sandboxer differs

UpCloud is general VPS hosting; Sandboxer adds stop/resume with processes, forks and per-port URLs.
UpCloud docs read do not describe nested virtualization or Docker; Sandboxer has both.
UpCloud has several European locations; Sandboxer runs in us-east and eu-central.
UpCloud offers GPU servers; Sandboxer does not.
UpCloud bills Cloud Servers by the hour; Sandboxer bills per second.

Pick UpCloud if

You need European data centers.
You need GPU servers or Windows.
You want a conventional VPS.

Pick Sandboxer if

You want a ready-to-use Ubuntu 24.04 VM with Docker, nested KVM and coding agents preinstalled, with no cloud account or networking to set up.
You want stop/resume that brings running processes back, instant forks of a disk snapshot, and stopped sandboxes that cost nothing.
You want any port exposed as an HTTPS URL and a prompt API, MCP server and SDKs for agents out of the box.

Sources

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 If something here is out of date, email hello@sandboxer.com and we'll fix it.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

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