Browser platforms / Skyvern alternative

A Skyvern alternative for the execution layer

Skyvern packages browser automation with agent/workflow execution, saved credentials and browser profiles. It can keep a live browser across Runs or save sign-in state for later sessions. Compare that complete automation service with the persistent Linux execution environment beneath an agent you operate.

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Reviewed 2026-10-18 · Published by the Sandbox0 team

When Skyvern fits

Skyvern fits teams wanting managed browser workflows, model-assisted actions, replay, credential handling and operational integrations. Its cloud provides reusable browser identity and interactive session access; those functions would need to remain in a replacement architecture.

When to consider Sandbox0

Consider Sandbox0 when compatible agent code needs installed tools, configuration and files across a durable growing RootFS, plus supported paused-file access. Model-driven browser decisions, credential integration, workflow state and replay still require software above the runtime.

Capabilities

Skyvern and Sandbox0: what persists?

Feature comparison with documentation and verification status
Environment and runtime lifetimeSkyvernThe documented hosted browser-session settings extend up to 6 hours; reusable profile lifetime is separate.View evidence ↗Sandbox0ttl and hard_ttl default to 0 (disabled). Configure idle pause and deletion policies for the same persistent sandbox identity; an idle running sandbox still accrues compute charges.Read documentation →
Persistent filesSkyvernSaved browser profiles retain sign-ins/storage; a general-purpose persistent Linux disk is not established.View evidence ↗Sandbox0The writable RootFS survives successful checkpoints, including software, system configuration, dependencies, and user data.Read documentation →
Whole RootFSSkyvernA reusable browser profile is not a verified complete writable RootFS.View evidence ↗Sandbox0Persistence extends beyond /workspace to paths such as /usr/local, /etc, and /home. Runtime tmpfs and virtual filesystems are excluded.Read documentation →
Release compute, keep stateSkyvernA live billed browser and stored profile do not establish compute-free arbitrary-machine checkpointing.View evidence ↗Sandbox0Pause compute between tasks; resume on available capacity. Default resume starts fresh processes from the saved filesystem.Read documentation →
Memory and process stateSkyvernProfile serialization is not a documented arbitrary-process RAM snapshot.View evidence ↗Sandbox0Experimental memory checkpoints can preserve compatible process state. Use memory: true on both pause and resume on a compatible deployment. A filesystem checkpoint alone does not preserve running processes.Read documentation →

Online RootFS growth

On growth-enabled images, Sandbox0 automatically expands the writable RootFS as free space runs low, within a configured sparse logical ceiling up to 64 TiB. Agent processes keep running. Growth is enabled in the qualified Cloud region; confirm activation for other regions. Existing images and snapshots retain their captured storage geometry. The ceiling is logical capacity, not preallocated host disk.

Skyvern’s reusable profiles and longer live browser sessions preserve browsing continuity, not a verified automatic whole-Linux-RootFS growth contract. An agent can use Skyvern as a remote tool while a separate Sandbox0 environment retains its installed system and accumulated files.

Files while compute is paused

Sandbox0's Files API reads persistent files without resuming compute. Filesystem-only pauses also permit edits; retained-memory pauses are read-only and reject mutations with 409. SSH, SFTP, file watching, and runtime-only mounts require running compute.

Skyvern stores browser profiles without billing an open browser, which is useful for intermittent automation. The reviewed docs do not establish no-wake edits of an arbitrary paused Linux root filesystem. Sandbox0’s supported Files API addresses that separate system-state workflow.

See paused file operations →

A live browser and a saved profile have different lifetimes

The browser guide distinguishes sessions, billed while open even when idle, from stored profiles that are not billed while retained. Sessions can span Runs, with 5-minute to 4-hour creation settings and extension up to 6 hours. Profiles retain signed-in browser state until deleted, rather than keeping an arbitrary Linux process running.

Source 1 ↗

Actions and uptime both draw from credits

The account guide defines a credit as $0.001, with 30 credits for a regular action, 15 for a cached action, 200 per browser-hour and 10 for a one-time-code parse. Plan action estimates are not guaranteed run counts: navigation/replay mix, time and authentication affect usage.

Source 1 ↗

Keep plan features and contract-specific limits explicit

The current price page lists Hobby and Pro credit/concurrency bundles and a custom Enterprise offer with 100 concurrent runs. The account guide describes Enterprise as unlimited. Confirm contractual limits rather than promising unlimited use. Saved-credential and 2FA integrations are application services, separate from a raw sandbox machine.

Source 1 ↗Source 2 ↗Source 3 ↗

Pricing

Compare billing models, then price your workload

CPU allocation, memory, billing minimums, disk, plan fees, and supported workload differ. These meters are not equal-performance machine quotes. Confirm region, resource units, and included allowances before estimating a total.

Skyvern

Pricing reviewed 2026-10-18

Free
$0 with 5,000 one-time credits
One concurrent run; free credits do not reset.
Rate source ↗
Hobby
$29/month with 30,000 monthly credits
Ten concurrent runs.
Rate source ↗
Pro
$149/month with 150,000 monthly credits
25 concurrent runs; optional SMS numbers cost extra.
Rate source ↗
Regular / cached action
$0.03 / $0.015 per action
30 / 15 credits; the actual number of actions varies by workflow.
Rate source ↗
Open browser uptime
$0.20 per browser-hour
200 credits/hour, including idle open sessions.
Rate source ↗
One-time-code parse
$0.01 each
Rate source ↗

Credit balances fund multiple usage types, so do not promise fixed actions or hours from a plan total. Pro SMS numbers are advertised at $10/number-month. Enterprise credit/concurrency descriptions differ between the price page and account guide; obtain the effective agreement. No equal-performance VM-hour comparison follows from browser-action rates.

Check current Skyvern pricing ↗

Sandbox0

$0.015/GiB-hour compute (billed by the second at approximately $0.000004167/GiB-second), plus $0.02/GiB-month of retained incremental RootFS and memory checkpoint data. Shared base images and platform recovery retention are excluded; paused sandboxes accrue storage charges only.

Compute / GiB-hour
$0.015
Retained data / GiB-month
$0.02
Paused compute
$0.00

A 4 GiB agent, 100 running hours

$6.00 compute

4 GiB × 100 hours, billed by the second. Keeping 20 GiB of billable incremental data for a full billing month adds $0.40. CPU is derived from memory by the platform; choose a tier that fits your workload.

Understand storage billing →

Before migrating from Skyvern

  1. Preserve workflow/agent definitions, required artifacts and browser-profile/credential dependencies through supported account workflows before ending a cloud plan.
  2. Run a compatible agent harness on Sandbox0, retaining Skyvern or supplying browser drivers, model actions, replay, authentication and workflow orchestration explicitly.
  3. Test signed-in continuity, system files outside browser storage, RootFS growth, paused files and total action/cache/uptime/authentication versus runtime cost.

Common questions

Is Sandbox0 a drop-in Skyvern replacement?

Evaluate API compatibility and product scope. These products serve different core workflows, so a change may require a different architecture.

Does keeping files also keep a running agent?

Filesystem state and volatile process state are separate. Sandbox0 requires explicit compatible memory checkpoints to preserve running processes; its default filesystem resume starts fresh processes.

Sources and review scope

The Boat team's Battleships directory is the discovery source. References below describe the product and plan discussed on this page. Check current availability, regional terms and billing units before migrating. Where the cited material does not establish a capability or price, the comparison identifies that uncertainty.

Battleships research record ↗www.skyvern.com/docs/browsers.md ↗www.skyvern.com/docs/cloud/account.md ↗www.skyvern.com/pricing ↗www.skyvern.com/docs/credentials.md ↗Sandbox0 RootFS capacity →

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