Browser Use Alternative: Hosted Chromium for Agents

# Browser Use Alternative: Hosted Chromium for Agents

If you are evaluating a browser use alternative, the real question is not which library has the nicer agent loop. It is where the browser actually runs, who keeps it alive, and how your code reaches it. Browser Use is a capable agent framework, but it assumes you supply a browser. That assumption is where most production friction starts: local Chrome versions drift, headless flags break, sessions die between tasks, and every worker needs its own Chromium install.

Remote Browser takes the opposite approach. It is a hosted Chromium runtime that exposes sessions over CDP, so Playwright, Puppeteer, and Selenium connect to a browser that already exists in the cloud. You keep your agent logic. You stop operating browsers. This guide covers the trade-offs, the connection mechanics, and the production criteria that matter when you move off a local-only setup.

What "browser use alternative" actually means

The phrase gets used two ways, and conflating them causes bad architecture decisions.

Framework alternative. You want a different agent loop, planner, or tool-calling layer than Browser Use provides. This is a code-level swap. You can run any of these frameworks against a hosted browser.

Runtime alternative. You want to stop managing Chromium yourself. This is an infrastructure decision, and it is independent of which agent framework you pick.

Most teams searching for a browser use alternative actually need the second thing. Their agent logic works fine in a notebook. It falls apart when ten workers try to launch Chromium simultaneously on a box with 8 GB of RAM, or when a task needs a logged-in profile that persists across runs.

Remote Browser addresses the runtime layer. You can still use Browser Use, LangChain, a custom ReAct loop, or raw Playwright scripts on top of it. The browser is just no longer your problem.

Where local browser execution breaks down

Before comparing options, it helps to name the failure modes precisely. These are the ones that show up in production, not in demos.

• Version drift. playwright install pins a Chromium build per Playwright version. Upgrade Playwright in CI and your local browser cache may not match, producing launch failures that only appear on some machines.
• Resource contention. Each Chromium instance consumes a substantial amount of memory. Running N agents on one host means N browsers competing for memory and CPU.
• Session loss. A local browser dies when the process dies. Long-running or multi-step tasks that span deploys, restarts, or worker recycling lose all state.
• Profile management. Logged-in state, cookies, and local storage live in a user data directory on disk. Sharing that safely across concurrent workers is genuinely hard.
• Network identity. Local execution means your datacenter IP. Sites that care about origin will treat every request the same way.

None of these are Browser Use bugs. They are consequences of running the browser inside your own process boundary.

Hosted Chromium vs. local browser: a comparison

The table is not an argument that local execution is wrong. For a single script on a developer laptop, chromium.launch() is the fastest path. The comparison matters once you have more than one concurrent task or any requirement for state that outlives a process.

Connecting Playwright to a hosted browser

The core mechanic is connectOverCDP. Instead of launching a browser, you attach to one that is already running and exposing a DevTools Protocol endpoint. Playwright documents this in its BrowserType.connectOverCDP reference.

import { chromium, Browser, BrowserContext, Page } from 'playwright';

// The session endpoint comes from your Remote Browser session.
// Treat it like any other CDP URL — no local Chromium install required.
const CDP_ENDPOINT = process.env.REMOTE_BROWSER_CDP_URL!;

async function runTask(): Promise<void> {
  const browser: Browser = await chromium.connectOverCDP(CDP_ENDPOINT, {
    // Slow networks benefit from a longer handshake timeout.
    timeout: 30_000,
  });

  // A hosted session usually arrives with a default context already open.
  const context: BrowserContext =
    browser.contexts()[0] ?? (await browser.newContext());

  const page: Page = context.pages()[0] ?? (await context.newPage());

  await page.goto('https://example.com', { waitUntil: 'domcontentloaded' });

  // Your agent logic runs here — extraction, form filling, assertions.
  const title = await page.title();
  console.log('Loaded:', title);

  // Do NOT call browser.close() on a shared session unless you intend
  // to tear it down. Disconnecting leaves the remote browser alive.
  await browser.close();
}

runTask().catch((err) => {
  console.error('Task failed:', err);
  process.exitCode = 1;
});

Two details matter here and are easy to get wrong.

First, connectOverCDP returns a Browser whose lifecycle you do not fully own. Calling close() disconnects your client. Whether the remote session terminates depends on the runtime's session policy, so check your provider's semantics rather than assuming.

Second, connectOverCDP is Chromium-only in Playwright. If your stack needs Firefox or WebKit, CDP is not the transport. This is a real constraint, not a footnote — see the Playwright CDP documentation for the supported matrix.

Puppeteer and Selenium against the same session

The CDP endpoint is not Playwright-specific. Puppeteer connects with puppeteer.connect({ browserWSEndpoint }), and Selenium can attach through its CDP bridge. This means a single hosted session can serve multiple client libraries, which is useful when your test harness and your agent use different tools.

The practical benefit: you stop running puppeteer browsers install chrome in every container image. Your Dockerfile loses a few hundred megabytes and a network-dependent build step. The browser is provisioned once, remotely, and your images stay thin.

If you are migrating from a local Puppeteer setup, the change is usually a one-line swap from puppeteer.launch() to puppeteer.connect(), plus moving any launchOptions.args configuration into the session request. Flags you used to pass at launch — window size, locale, proxy — become session parameters instead.

Production criteria for choosing a runtime

When you compare a browser use alternative at the runtime layer, evaluate against these criteria rather than feature lists.

Connection protocol. Does it expose CDP directly, or only a proprietary SDK? Direct CDP means you are not locked into one client library and can debug with standard tooling.

Session lifecycle. Can a session outlive a single script run? Persistent profiles matter for anything involving authentication or multi-step workflows.

Isolation. Are sessions isolated from each other? Shared browser state across concurrent agents produces nondeterministic failures that are painful to debug.

Observability. Is there a live viewer? When an agent fails at step seven, being able to watch the session in real time beats reading a stack trace.

Network configuration. Can you set proxies and browser settings per session? This is often the difference between a task succeeding and being blocked.

Usage controls. Are there per-session or per-account limits you can reason about? Unbounded concurrency sounds good until a runaway loop spawns fifty browsers.

Remote Browser exposes hosted Chromium sessions with CDP access, a live viewer, persistent profiles, configurable browser settings, session isolation, and usage controls. Current limits and pricing live on the /pricing page — check there rather than relying on secondhand numbers.

When to keep Browser Use, when to switch runtimes

This is not a binary. The honest breakdown:

Keep local execution if you run single tasks interactively, you need Firefox or WebKit, or your workload is small enough that a laptop browser is genuinely sufficient. Adding a remote runtime to a one-off script is overhead with no payoff.

Move to a hosted runtime if you run concurrent tasks, need sessions that survive process restarts, need consistent network identity, or are tired of maintaining browser binaries in CI. These are the conditions where local execution stops being convenient and starts being a liability.

You can do both. Browser Use's framework can point at a remote CDP endpoint just as easily as a local one. The framework choice and the runtime choice are orthogonal. If you want the background on why the runtime layer matters for agents specifically, /blog/remote-browser-for-ai-agents covers the architecture in more depth.

Migration checklist

If you are moving an existing Browser Use or Playwright setup to a hosted runtime, the sequence is short.

1. Provision a session through the API and capture the CDP endpoint.
2. Swap `launch()` for `connectOverCDP()` in your browser initialization code.
3. Move launch flags to session parameters. Anything you passed via launchOptions.args — viewport, locale, proxy — belongs in the session request now.
4. Decide your close semantics. Disconnect per task, or keep the session alive for a multi-step workflow.
5. Verify profile persistence if your tasks depend on logged-in state.
6. Wire up the live viewer for debugging before you need it, not after an incident.

For a walkthrough of the connection flow with more detail, see /blog/remote-web-browser. The /documentation section covers session creation, CDP endpoints, and client setup for each supported library.

The short version

A browser use alternative is usually a runtime question wearing a framework costume. Browser Use gives you an agent loop; it does not give you a browser that survives production. Hosted Chromium closes that gap by moving the browser out of your process and behind a CDP endpoint that Playwright, Puppeteer, and Selenium already know how to talk to.

The migration is small — one connection call instead of a launch call — but the operational difference is large. No browser binaries in your images, no version drift across workers, sessions that persist, and a live viewer when something goes wrong. Start with a session, connect over CDP, and keep your agent logic exactly where it is.