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Sandboxer vs BrowserCloud

BrowserCloud is a hosted browser automation service for agents and web apps, with over 1,000 simultaneous sessions advertised. Sandboxer is a different category: each sandbox is a full Ubuntu VM with root, Docker and nested KVM, not a browser instance. Pick BrowserCloud for browsers; pick Sandboxer for full machines.

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

At a glance

Sandboxer and BrowserCloud compared
CapabilitySandboxerBrowserCloud
IsolationmicroVM
Cloud Hypervisor, its own kernel
container
Stated to run browser sessions in isolated containers.
Full Linux with root
Ubuntu 24.04, sudo, systemd
Not offered; the product is a remote browser driven over CDP/API, not a general machine
Docker inside
Preinstalled
Not offered; the product is a remote browser driven over CDP/API, not a general machine
Nested virtualization (/dev/kvm)
Not offered; the product is a remote browser driven over CDP/API, not a general machine
Pause and resume with memory
Running processes come back
Fork a sandbox
Copy-on-write disk copy that boots fresh
No VM fork; browser sessions only
HTTPS URL per port
Private with a token, or public
Not offered; the product is a remote browser driven over CDP/API, not a general machine
Longest sessionNo limit on paid plans
Auto-stop is up to 30 days or off
BillingPer second, flat rate per size
Stopped sandboxes are free
GPUs
No GPU machines described; browser sessions only
Self-host or open source
RegionsUS East (Virginia) and EU Central (Finland)Globally distributed (specific regions not listed)

= not documented publicly.

Where BrowserCloud is strong

  • Sessions start in under 300 ms with dedicated CPUs per browser.
  • Supports 1,000+ simultaneous sessions.
  • Stealth, proxies, captcha solving, live view and recording.
  • SDKs for Python, JavaScript, PHP, Java and C#.

Where Sandboxer differs

  • BrowserCloud offers browsers, not VMs with root, Docker or KVM.
  • Pricing is not shown on its landing page; Sandboxer lists exact rates.
  • Session limits are not stated.

Pick BrowserCloud if

  • You need browser automation from PHP, Java or C#.
  • You want no-code integrations such as n8n, Zapier or Make.
  • You need very fast browser start times.

Pick Sandboxer if

  • You need a full Ubuntu 24.04 VM with root, systemd, Docker and nested KVM rather than a browser only.
  • You want stop/resume that brings running processes back, and sandboxes that cost nothing while stopped.
  • You want coding agents (Claude Code, Codex and others) preinstalled and any port exposed as an HTTPS URL.

Sources

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

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