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Sandboxer vs Anchor Browser

Anchor Browser is cloud browser infrastructure for agents, with CDP/REST control, saved identities and persistent profiles. Sandboxer is a different category: each sandbox is a full Ubuntu VM with root, Docker and nested KVM, not a browser instance. Pick Anchor for authenticated web agents; pick Sandboxer for full machines.

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

At a glance

Sandboxer and Anchor Browser compared
CapabilitySandboxerAnchor Browser
IsolationmicroVM
Cloud Hypervisor, its own kernel
browser instance
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
usage: $0.09/h browser, $8/GB proxy, $0.01/AI step; plus monthly plan credits
Plans $0/$50/$500/$2,000; the page's calculator is internally inconsistent
GPUs
No GPU machines described; browser sessions only
Self-host or open sourcepartial
Bring your own cloud listed on Enterprise
RegionsUS East (Virginia) and EU Central (Finland)Custom regions (EU, Asia, Australia) on Enterprise
Other regions not listed

= not documented publicly.

Where Anchor Browser is strong

  • Managed authentication including MFA identities.
  • Persistent volumes and profiles.
  • Natural-language tasks and versioned TypeScript automations.
  • SOC2 Type 2, ISO 27001 and GDPR on the Growth plan.

Where Sandboxer differs

  • Anchor provides browsers, not Linux machines with root, Docker or KVM.
  • Anchor plans run $0, $50, $500 and $2,000 a month plus usage-based browser time, proxy data and AI steps.
  • Maximum session duration is not stated; Sandboxer sandboxes can run with no limit on paid plans.

Pick Anchor Browser if

  • Your agent logs into sites and needs saved identities and MFA handling.
  • You want a hosted browser agent that takes plain-English tasks.
  • You need enterprise compliance such as BAA or SSO.

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. Anchor Browser is a trademark of its owner. Sandboxer is an independent product and is not affiliated with Anchor Browser.

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