Browserbase Alternatives: Choosing a Hosted Browser Runtime

# Browserbase Alternatives: Choosing a Hosted Browser Runtime

If you're searching for Browserbase alternatives, you've probably hit one of three walls: a pricing model that doesn't match your traffic pattern, a feature gap around CDP access or persistent profiles, or a need to run browser-use style agents against sites that reject default automation setups. This guide walks through what actually differentiates hosted browser runtimes, how to compare them on criteria that matter in production, and where Remote Browser fits as one option among several.

The short version: Browserbase is a managed browser infrastructure product. So are Browserless, Steel, Hyperbrowser, Kernel, and Remote Browser. They differ on session model, protocol surface, proxy handling, and how you're billed. Picking the wrong one usually shows up as either runaway cost or flaky sessions under load — not as a missing checkbox on a feature page.

What "Browserbase alternative" actually means

Browserbase provides hosted Chromium sessions that you drive over CDP or through their SDK. It's aimed at teams running browser agents and automation at scale without managing their own Chrome fleet. When people look for alternatives, they're usually trying to solve one of these:

• Cost predictability. Per-session or per-browser-hour pricing that scales badly with long-running agent tasks.
• Protocol flexibility. Wanting raw CDP, Playwright, Puppeteer, or Selenium access rather than a proprietary SDK.
• Session persistence. Needing profiles that survive across runs so logins and cookies aren't rebuilt every time.
• Network control. Proxy configuration, geo-targeting, or configurable browser settings for sites that block datacenter IPs.
• Live debugging. Being able to watch a session in real time when an agent gets stuck.

None of these are unique to any single vendor. The question is which combination your workload needs.

Comparison criteria that matter in production

Before comparing vendors by name, define what you're optimizing for. These are the dimensions that actually cause problems six weeks after launch.

If a vendor is vague on any of these, that's a signal to test before committing.

How the main options differ

Here's a rough map of the landscape. Treat this as orientation, not a verdict — every one of these products changes, and your requirements should drive the decision.

Browserbase — Managed Chromium with a focus on developer experience. Good SDK, session recording, and a clean API. Pricing is session-oriented, which works well for short tasks and less well for agents that hold a browser open for minutes at a time.

Browserless — Long-standing hosted browser service with strong Playwright and Puppeteer support. Broader feature set historically oriented toward scraping and testing rather than agent workloads.

Steel, Hyperbrowser, Kernel — Newer entrants targeting AI agent workloads specifically. Each has a slightly different angle: Steel leans open-source-friendly, Hyperbrowser emphasizes agent tooling, Kernel focuses on session primitives.

Remote Browser — Hosted Chromium sessions exposed over CDP, with Playwright, Puppeteer, and Selenium compatibility, persistent profiles, a live viewer, configurable browser settings, and usage controls. Positioned for browser-use style agent workloads where you want the runtime to stay out of the way.

The honest take: for a simple scraping job, most of these work. The differences show up when you're running many concurrent agent sessions with authentication, retries, and long task horizons.

The pricing model question

This is where most "Browserbase alternatives" searches originate. Two models dominate:

1. Per browser-hour. You pay for wall-clock time a browser is allocated. Predictable if your tasks are short; expensive if agents idle waiting on model calls.
2. Per session or per task. You pay per session created or per task completed. Predictable per unit of work, but harder to forecast if task complexity varies.

The trap with browser-hour pricing is idle time. An agent that spends 40 seconds thinking between actions still occupies a browser. If your agent framework doesn't release the session during model inference, you're paying for nothing.

The trap with per-session pricing is retries. A flaky site that needs three attempts costs three sessions.

Neither model is inherently better. What matters is whether the metering matches your actual usage shape. Check the current details on the pricing page rather than assuming a model from a blog post — these change.

Connecting to a hosted runtime over CDP

The practical test of any hosted browser is how cleanly it connects to your existing tooling. If you're using Playwright, the connection is a single call. Here's a TypeScript example that connects to a remote Chromium instance over CDP and runs a basic agent-style task:

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

interface SessionConfig {
  cdpUrl: string;      // wss:// endpoint from your runtime provider
  profileId?: string;  // persistent profile identifier, if supported
}

async function runAgentTask(config: SessionConfig, url: string): Promise<string> {
  const browser: Browser = await chromium.connectOverCDP(config.cdpUrl, {
    // Pass profile context if the runtime supports persistent profiles
    headers: config.profileId ? { 'X-Profile-Id': config.profileId } : {},
  });

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

  try {
    await page.goto(url, { waitUntil: 'domcontentloaded', timeout: 30_000 });

    // Wait for the agent-relevant content, not the full page load
    await page.waitForSelector('[data-testid="result"]', { timeout: 15_000 });

    const text = await page.locator('[data-testid="result"]').innerText();
    return text;
  } finally {
    // Close the page, not the browser, if the session is reused
    await page.close();
  }
}

// Usage
runAgentTask(
  { cdpUrl: process.env.REMOTE_BROWSER_CDP_URL!, profileId: 'agent-user-42' },
  'https://example.com/dashboard'
).then(console.log).catch(console.error);

Two things to note. First, connectOverCDP is Chromium-only in Playwright — see the official Playwright CDP documentation for the exact contract. Second, whether you close the page or the browser depends on whether your runtime bills per session or per browser-hour. Closing the browser ends the session; closing the page keeps it alive.

If you're wiring this into an agent loop, the remote browser for AI agents post covers the runtime-layer concerns — session reuse, retry boundaries, and where to put the agent's decision logic.

Persistent profiles and why they change the math

A persistent profile means cookies, localStorage, and session tokens survive across browser sessions. For agents that log into a site once and then run many tasks, this is the difference between one authentication flow and repeating it on every run.

Implementation varies. Some runtimes expose profiles as a first-class resource with an ID you pass at session creation. Others expect you to export and re-import storage state manually. The first is much less code.

If your agent authenticates, check profile support before anything else. It's the single feature most likely to determine whether your per-task cost is viable.

Stealth, proxies, and configurable browser settings

Sites that block automation are the second most common reason people switch runtimes. The honest framing: no hosted browser guarantees you won't get blocked. What you can control is the surface area.

• Proxy type. Datacenter IPs get flagged faster than residential IPs. If your target sites are aggressive, a proxy network with residential IPs is usually necessary.
• Browser settings. User agent, viewport, locale, timezone, and headers are configurable on most runtimes. Whether the runtime randomizes them or lets you set them explicitly is a design choice — explicit control is usually better for reproducibility.
• Session isolation. Each session should start from a clean state unless you're deliberately reusing a profile. Shared state across sessions causes weird, hard-to-reproduce failures.

Be skeptical of any vendor claiming to solve CAPTCHAs or evade detection as a guarantee. These are arms races, and the honest position is "we give you the controls; results depend on the target."

When to pick a hosted runtime over self-hosted

Self-hosting Playwright or Puppeteer on your own infrastructure is viable if you have the operational appetite. You'll need to handle:

• Browser binary updates and version pinning
• Container memory limits (Chromium is memory-hungry)
• Session cleanup and zombie process reaping
• Managing outbound IPs and proxy configuration
• A viewer or debugging path for failed runs

If you're running a handful of automations, self-hosting is fine. If you're running agent workloads where the browser is a dependency of a larger system, a hosted runtime removes a category of operational work. The trade-off is cost per session and a dependency on someone else's uptime.

For a deeper comparison of the self-hosted path, see remote browser online, which covers what you actually get from a hosted runtime versus running Chromium yourself.

A practical evaluation checklist

If you're choosing between Browserbase and its alternatives, run this process:

1. Write down your session shape. Average duration, concurrency, retry rate. This determines which pricing model wins.
2. Test CDP connectivity first. If connectOverCDP doesn't work cleanly with your existing Playwright code, the vendor is a poor fit regardless of features.
3. Check profile support. If your agent authenticates, this is non-negotiable.
4. Run a real task against a real target. Not a demo page. Something with JavaScript, network requests, and a login.
5. Watch the session in a viewer. If you can't see what the agent saw when it failed, you'll waste hours debugging.
6. Model the cost at 10x your current volume. Pricing that looks fine at 100 sessions can be brutal at 10,000.

The documentation covers the connection details for Remote Browser specifically, including CDP endpoints, profile handling, and session controls.

Where Remote Browser fits

Remote Browser is one option in this space. It provides hosted Chromium sessions with CDP access, Playwright/Puppeteer/Selenium compatibility, persistent profiles, a live viewer, configurable browser settings, session isolation, and usage controls. It's built for browser-use style agent workloads where you want the runtime to be a clean primitive rather than a framework.

It's not the right choice for everyone. If you need a batteries-included agent framework, look at browser-use or one of the agent SDKs. If you need a specific proxy network or a compliance certification, check that first. If you want a hosted Chromium you connect to over CDP and control from your own code, it's worth testing.

The broader point: "Browserbase alternatives" is a category, not a single answer. The right runtime is the one whose session model, protocol surface, and pricing shape match your workload. Everything else is marketing.

Start by defining your session shape, then test two or three options against a real task. The pricing page has current details if you want to model cost against your numbers.