Sandboxer vs Omnara

Omnara is an open-source platform for running managed agents: it stores agent state in an event log and runs shell work on machines from Omnara, your own Daytona/Blaxel/E2B/Modal-type accounts, or a daemon on your own hardware. It is an agent runtime layer rather than a VM product. Pick Omnara to orchestrate agents over any machine provider; pick Sandboxer when you want the VM itself with root, Docker and nested KVM.

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

At a glance

Sandboxer and Omnara compared
Capability	Sandboxer	Omnara
Isolation	microVM Cloud Hypervisor, its own kernel	Depends on machine provider Machines can be Omnara-paid, BYO provider pools (e.g. Daytona, E2B, Modal) or the omnarad daemon on your hardware.
Full Linux with root	Ubuntu 24.04, sudo, systemd	Not stated on the official pages checked.
Docker inside	Preinstalled	Not stated on the official pages checked.
Nested virtualization (/dev/kvm)		Not stated on the official pages checked.
Pause and resume with memory	Running processes come back	partial Machines can be asleep and woken; mechanics not described. Agents themselves use no compute while idle.
Fork a sandbox	Copy-on-write disk copy that boots fresh	Not stated on the official pages checked.
HTTPS URL per port	Private with a token, or public	Not stated on the official pages checked.
Longest session	No limit on paid plans Auto-stop is up to 30 days or off	Not stated on the official pages checked.
Billing	Per second, flat rate per size Stopped sandboxes are free	pay-as-you-go credits: models at provider token rates, machines by active time; no platform fee BYO keys and machines are free; self-hosting free.
GPUs		partial GPUs are listed as a use for bring-your-own machines; GPU support on provider pools is not stated.
Self-host or open source		Apache 2.0, self-host in your own VPC.
Regions	US East (Virginia) and EU Central (Finland)	Not stated on the official pages checked.

= not documented publicly.

Where Omnara is strong

Open source under Apache 2.0, self-hostable.
Agents are durable event-log objects that use no compute when idle.
Works with Omnara machines, your own providers, or a daemon on your laptop or server.
Tool permissions, approvals, audit history and MCP support.

Where Sandboxer differs

Omnara runs agents over machines from others; Sandboxer is the microVM and its own agent runtime.
Machine isolation, Docker and root access depend on the chosen provider and are not specified by Omnara.
Omnara has no fixed per-size machine price page; Sandboxer publishes per-size hourly rates.

Pick Omnara if

You want an open-source agent orchestration layer you can self-host.
You want to bring your own machine provider, model keys or laptop.
You need human approvals and audit history around agent tool calls.

Pick Sandboxer if

Sandboxer gives each sandbox a full Ubuntu 24.04 VM with root, systemd and Docker preinstalled.
Sandboxer stop/resume keeps memory and running processes.
Sandboxer exposes any port as an HTTPS URL and bundles Claude Code, Codex and other coding agents.

Sources

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

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