Skip to content
sandboxer
Start free trial
Compare · Agent sandboxes

Sandboxer vs Tangle Sandbox

Tangle Sandbox runs agent tasks in dev containers or microVMs with SDK and CLI access to shell, files, ports, snapshots and GPUs. Public documentation is thin on isolation details, root, Docker and pricing. Pick Tangle if you need on-demand GPU leases for a command; pick Sandboxer for full Ubuntu VMs with root, Docker, nested KVM and resumable processes.

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

At a glance

Sandboxer and Tangle Sandbox compared
CapabilitySandboxerTangle Sandbox
IsolationmicroVM
Cloud Hypervisor, its own kernel
dev container or microVM
Which one applies per sandbox is not detailed in the pages read.
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
stop() and resume() keep the workspace; memory state is not mentioned.
Fork a sandbox
Copy-on-write disk copy that boots fresh
partial
Create a new sandbox from an existing sandbox's snapshot (fromSandboxId, fromSnapshot); it has its own lifecycle. Not called fork.
HTTPS URL per port
Private with a token, or public
previewLinks.create(port) makes a per-port preview URL, documented as public.
Longest sessionNo limit on paid plans
Auto-stop is up to 30 days or off
configurable
idleTimeoutSeconds and maxLifetimeSeconds set per sandbox; suspension rather than deletion on supporting deployments.
BillingPer second, flat rate per size
Stopped sandboxes are free
metered per second
No rates published in the pages read.
GPUs
Attach a GPU lease to a single command; leases are spend-capped and released when done.
Self-host or open source
RegionsUS East (Virginia) and EU Central (Finland)

= not documented publicly.

Where Tangle Sandbox is strong

  • GPU can be attached only to the command that needs it, with a spend cap.
  • One API key and SDK/CLI covering shell, files, ports and snapshots.
  • Public per-port preview links from the SDK.
  • Configurable idle timeout and max lifetime per sandbox.

Where Sandboxer differs

  • Tangle's docs do not state root access, Docker or nested virtualization; Sandboxer documents all three in a full Ubuntu VM.
  • Tangle snapshots capture the workspace and new sandboxes start from them; Sandboxer also keeps RAM and processes on stop and resume.
  • Tangle's public pricing is not published in the pages read; Sandboxer lists per-second rates.
  • Sandboxer preinstalls coding agents with a prompt API; Tangle exposes agent harnesses through its SDK.

Pick Tangle Sandbox if

  • You need a GPU only for specific commands, billed as a lease.
  • You want dev-container sandboxes tied into Tangle's wider network and tooling.
  • You prefer per-second metered usage under a single API key.

Pick Sandboxer if

  • You need a full VM with root, systemd, Docker and nested KVM.
  • You need running processes to survive stop and resume.
  • You want published per-size prices and coding agents preinstalled.

Sources

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

Other comparisons

Sandboxer vs E2B

Firecracker microVMs with memory-preserving pause and fork, and an open-source stack.

Compare
Sandboxer vs Daytona

Many sandbox classes, from containers to VMs, Windows and GPUs.

Compare
Sandboxer vs Modal

Massive scale and GPUs for short-lived sandboxes, gVisor by default.

Compare
Sandboxer vs Vercel Sandbox

Firecracker microVMs billed on active CPU, inside the Vercel platform.

Compare
All 201 comparisons