Browser platforms / Remote Browser alternative

Remote Browser alternative

Remote-browser.dev offers hosted Chromium with CDP, reusable browser profiles and live human takeover. Its browser-hour allowance is charged while the browser remains alive, and profile limits differ from recording retention. Compare those browser services with the durable Linux environment for the agent itself.

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

When Remote Browser fits

Remote Browser fits applications that want managed Chromium, authenticated browser-state reuse and live observation or takeover from an existing agent. Keep those features as a remote tool if they match the workflow.

When to consider Sandbox0

Consider Sandbox0 when the agent also installs Linux packages, changes system configuration and accumulates files beyond browser state. Retain the remote browser or configure a compatible one explicitly; a runtime does not automatically supply its proxy, viewer and profile-management layer.

Capabilities

Remote Browser and Sandbox0: what persists?

Feature comparison with documentation and verification status
Environment and runtime lifetimeRemote BrowserNot established in this reviewSandbox0ttl 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 filesRemote BrowserBrowser profile data, including tabs/history, is retained; an independent durable Linux disk is not established.View evidence ↗Sandbox0The writable RootFS survives successful checkpoints, including software, system configuration, dependencies, and user data.Read documentation →
Whole RootFSRemote BrowserA saved browser profile is not whole writable Linux RootFS persistence.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 stateRemote BrowserIdle closure and profile reuse do not establish arbitrary-machine checkpoint/restore.View evidence ↗Sandbox0Pause compute between tasks; resume on available capacity. Default resume starts fresh processes from the saved filesystem.Read documentation →
Memory and process stateRemote BrowserProtocol-event recording is not arbitrary process-memory capture/restore.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.

Remote Browser retains selected browser state, including tabs and history. The reviewed profile and architecture material does not establish complete Linux RootFS retention or automatic online disk growth. Sandbox0 retains the surrounding toolchain and accumulating 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.

Reopening a named browser profile or viewing a recording is different from reading and editing the entire paused Linux RootFS. The reviewed Remote Browser docs do not establish that full filesystem interface.

See paused file operations →

The profile saves tabs and history as well as login data

The profile guide lists cookies, localStorage, IndexedDB, tabs, history and site preferences. A stable profileName loads or creates that state. Avoid sharing a profile across unrelated agents that may overwrite each other’s tabs or session data. This is a real browser-state feature, but not an entire Linux filesystem checkpoint.

Source 1 ↗

Alive browser time includes idle time before closure

The pricing page meters a session while it remains alive and available, rather than only while a script issues commands. The architecture guide describes idle closure after no CDP traffic, with a plan-dependent timeout and ping support. A cold tab costs no active runtime after closure; an open idle browser is a different state.

Source 1 ↗Source 2 ↗

Recordings and live viewers have their own limits

The service records protocol events rather than video by default and provides a viewer URL with human takeover. Free and Developer have different viewer counts and recording-retention periods. A replay or retained recording does not establish process-memory restore or a retained whole Linux installation.

Source 1 ↗Source 2 ↗

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.

Remote Browser

Pricing reviewed 2026-10-18

Free
$0/month including 1 browser-hour
One active browser, one viewer, one profile and one-day recording retention.
Rate source ↗
Developer introductory month
$0.10 for the first month
Then $4.90/month; 30 browser-hours, ten active browsers, 20 profiles, three viewers per browser and seven-day recordings.
Rate source ↗
Developer recurring price
$4.90/month after the first month
The introductory amount is not the permanent monthly price.
Rate source ↗
One-time top-up
$4.90 for 20 browser-hours
No subscription required; this is a one-off pack rather than a monthly allowance.
Rate source ↗

Browser-hours, simultaneous browser/viewer caps, saved profiles and recording retention are separate constraints. Do not turn the headline introductory price into a long-term cost estimate or treat recording retention as filesystem retention. Proxy and other external application costs still need the terms of the actual setup.

Check current Remote Browser 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 Remote Browser

  1. Record profile names, required tabs/data, viewer and recording needs, idle policies and introductory versus recurring billing.
  2. Move compatible agent code and durable outputs to Sandbox0, keeping Remote Browser as the managed web tool or configuring a tested alternative.
  3. Test authenticated tab restoration, concurrent profile safety, idle cleanup, RootFS growth, paused files and complete browser/runtime costs.

Common questions

Is Sandbox0 a drop-in Remote Browser 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 ↗remote-browser.dev/documentation/browser/authentication/profiles ↗remote-browser.dev/pricing ↗remote-browser.dev/architecture ↗remote-browser.dev/documentation/browser/live-preview-recording ↗Sandbox0 RootFS capacity →

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