Browserless Alternative Free: Open-Source and Hosted Options

# Browserless Alternative Free: Open-Source and Hosted Options

If you are searching for a browserless alternative free option, you are usually trying to solve one of two problems: you want to stop paying a per-session bill, or you want to stop operating the browser infrastructure yourself. Those are different problems, and conflating them is why so many teams bounce between tools for months.

This guide breaks down what "free" actually means across the Browserless ecosystem, what open-source alternatives give you, and where a hosted runtime like Remote Browser fits when self-hosting stops being cheap in the ways that matter. It is written for developers running Playwright, Puppeteer, or Selenium workloads — including AI agents that drive real Chromium sessions.

What "free" means in the Browserless conversation

Browserless itself is a commercial product with a self-hostable open-source core. When people search for a free alternative, they are usually reacting to one of these:

• Per-session or per-unit pricing that scales faster than expected.
• Concurrency limits on lower tiers that cap parallel agents.
• Session timeouts that kill long-running agent tasks.
• Feature gating — stealth, proxies, or persistent profiles locked behind higher plans.

The honest framing: nothing is free. You either pay a vendor or you pay in engineering time, compute, and operational risk. The question is which cost lands on your P&L in a form you can actually manage.

A self-hosted Chromium fleet on your own cloud account looks free because the invoice goes to your existing infrastructure budget. It is not free. You are now responsible for:

• Container images and Chromium version pinning.
• Zombie process cleanup and memory leaks.
• Session isolation between tenants or tasks.
• Proxy configuration and IP reputation management.
• CDP endpoint stability under load.
• Observability when a session dies mid-task.

For a solo developer running a few hundred sessions a month, that overhead is tolerable. For a team running thousands of concurrent agent tasks, it becomes a second product you did not intend to build.

Open-source Browserless alternatives worth knowing

If your goal is genuinely to run everything yourself, the open-source landscape is healthy. Here are the options developers most often evaluate.

Browserless (self-hosted)

The Browserless Docker image is the most direct path. You get a REST API, a WebSocket endpoint, and Playwright/Puppeteer compatibility. You run it, you scale it, you debug it. The trade-off is that you are now operating a browser fleet, and the open-source image does not include the managed features (hardened Chromium, CAPTCHA handling, managed proxy pools) that the hosted product sells.

Playwright and Puppeteer directly

You do not need a wrapper at all. playwright.chromium.launch() and puppeteer.launch() work fine locally and in containers. The reason teams reach for Browserless-style tools is that raw Playwright does not give you a session API, a connection URL, or multi-tenant isolation out of the box. You build those yourself.

Steel, Hyperbrowser, and similar runtimes

Several newer projects offer open-source browser runtimes with hosted tiers. They generally follow the same shape: a Docker image you can self-host, plus a cloud offering with usage-based pricing. Evaluate them on CDP compatibility, session persistence, and how they handle proxy configuration — not on marketing pages.

Browserbase

Browserbase is hosted-only and does not offer a self-hosted path. It is a strong product, but it is not a "free alternative" in the self-hosting sense. If you are comparing Browserbase vs Browserless vs Chrome on your own infra, the axis that matters is who owns the browser lifecycle.

Comparison: free, self-hosted, and hosted runtimes

The pattern is consistent: the lower the upfront cost, the higher the operational cost. There is no configuration where you get managed isolation, proxies, and persistent profiles for zero dollars and zero maintenance.

Where self-hosting quietly gets expensive

The cost of self-hosting is not the compute. It is the failure modes.

Session leakage. If two agent tasks share a browser context, cookies and storage bleed between them. You need per-session isolation, which means either one browser per session (memory-heavy) or careful context management (bug-prone).

Chromium drift. Chromium ships a new stable release roughly every four weeks. If you pin a version, sites start breaking. If you auto-update, you get regressions you did not test for. Managed runtimes absorb this; you do not.

Proxy and IP reputation. Agents that hit protected sites need proxies with clean IP reputation. Sourcing, configuring, and monitoring proxy pools is a real operational discipline. It is also the single biggest reason teams move off self-hosted setups.

Debugging blind. When a session fails at 3 a.m., you need a live view, a session recording, or at minimum a CDP endpoint you can attach to. Building that observability layer is a project in itself.

Concurrency math. A headless Chromium instance with a typical page loaded can consume 150–400 MB of RAM. At 50 concurrent sessions, you are provisioning 8–20 GB of headroom plus the orchestration layer. That is a real bill, and it is not the one you were trying to avoid.

What a hosted alternative actually needs to provide

If you are leaving a self-hosted setup, the hosted runtime has to be better on the axes that made self-hosting painful. At minimum:

• CDP access so your existing Playwright or Puppeteer code connects without a rewrite.
• Persistent profiles so login state survives across sessions.
• Session isolation so concurrent agents do not contaminate each other.
• Configurable browser settings for proxy routing and request headers.
• A live viewer so you can watch and debug a running session.
• Usage controls so you can cap spend per project or per key.

Remote Browser provides hosted Chromium sessions with CDP access, Playwright/Puppeteer/Selenium compatibility, a live viewer, persistent profiles, session isolation, and configurable browser settings. It is designed for the browser-use and AI-agent workload specifically — long-running sessions, authenticated flows, and tasks that need to survive a network hiccup.

You can read the runtime model in more detail at /blog/remote-browser-for-ai-agents.

Connecting Playwright to a hosted runtime over CDP

The migration path from local Chromium to a hosted runtime is usually a one-line change. Instead of launching a browser, you connect to one over the Chrome DevTools Protocol.

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

// The connection URL comes from your Remote Browser session.
// See /documentation for how to create a session and retrieve it.
const CDP_ENDPOINT = process.env.REMOTE_BROWSER_CDP_URL!;

async function runAgentTask(): Promise<void> {
  const browser: Browser = await chromium.connectOverCDP(CDP_ENDPOINT);

  // Reuse the default context so persistent profile state is honored.
  const context: BrowserContext = browser.contexts()[0] ?? await browser.newContext();
  const page: Page = await context.newPage();

  try {
    await page.goto('https://example.com/login', { waitUntil: 'domcontentloaded' });
    await page.fill('#username', process.env.APP_USER!);
    await page.fill('#password', process.env.APP_PASS!);
    await page.click('button[type="submit"]');
    await page.waitForURL('**/dashboard');

    const title = await page.title();
    console.log('Landed on:', title);
  } finally {
    await page.close();
    // Do NOT call browser.close() on a hosted session unless you intend
    // to terminate it. Disconnecting leaves the session alive for reuse.
    await browser.close();
  }
}

runAgentTask().catch((err) => {
  console.error('Agent task failed:', err);
  process.exit(1);
});

Two details matter here. First, connectOverCDP is the correct entry point for a remote Chromium endpoint — see the Playwright CDP documentation for the full API surface. Second, calling browser.close() on a hosted session typically terminates it, whereas you often want to disconnect and let the session persist. Check your runtime's semantics before you ship.

If you are coming from Puppeteer, the equivalent is puppeteer.connect({ browserWSEndpoint }). Selenium users connect via a remote WebDriver URL. The protocol differs; the mental model is the same.

Free tiers, trials, and what to expect

Most hosted runtimes offer some form of free entry — a trial credit, a limited free tier, or a pay-as-you-go model with no minimum. Remote Browser pricing is usage-based; current rates and any free allowance are listed at /pricing. We do not publish invented numbers here because they change.

What you should evaluate on any free tier:

• Does it include CDP access, or only a REST wrapper?
• Are persistent profiles available, or do sessions reset?
• Is there a concurrency cap that blocks parallel agents?
• Does the free tier expire, and what happens to your sessions when it does?

A free tier that lets you connect Playwright over CDP and run a real authenticated flow is worth more than a generous credit that only supports screenshot endpoints.

Choosing between open-source and hosted

Use this as a decision rule rather than a preference:

Stay self-hosted if you have platform engineers who already run containerized workloads, your sessions are short and unauthenticated, and you do not need managed proxy infrastructure.

Move to hosted if your agents run long sessions, need persistent login state, hit protected sites, or your team's time is better spent on the agent than on the browser fleet.

Hybrid is legitimate. Many teams run local Chromium for development and a hosted runtime in production. The CDP connection string is the only thing that changes. That is the entire point of building on an open protocol.

If you want to see what a hosted session looks like before committing, the practical walkthrough at /blog/remote-browser-online covers the connection flow end to end.

The bottom line

There is no free lunch in browser automation, but there is a cheaper configuration for your specific workload. Open-source Browserless alternatives give you control at the cost of operations. Hosted runtimes give you operations at the cost of usage fees. The right answer depends on whether your bottleneck is engineering hours or infrastructure dollars — and for most teams running AI agents at any real volume, it is engineering hours.

Start by connecting your existing Playwright code to a hosted CDP endpoint. If the migration is a one-line change and the session behaves, you have your answer. If it does not, you have learned something specific about your requirements, which is more than any comparison table can tell you.

Review current usage rates and any free allowance at /pricing, and check /documentation for the session creation and CDP connection flow.