Notte vs Browserless

The decision

Browserless has several product and deployment paths, including self-hosting, reconnect mechanisms and authenticated profiles. Notte combines its cloud sessions with Python Functions and managed connections. Browserless Cloud's unit-based, 30-second browser billing also needs a different cost calculation from a simple published hourly rate.

Notte combines cloud browser sessions with deployed Python automations and website authentication tools. You can control the browser over CDP or use Notte's actions, then deploy repeated work as a Function.

Browserless provides hosted browser access and self-hosted options. Its documentation separates BaaS, BrowserQL and BAP, with different ways to control sessions, preserve state and use credentials.

At a glance

Sources: docs.notte.cc [1] ↗docs.notte.cc [2] ↗docs.notte.cc [3] ↗docs.notte.cc [4] ↗docs.notte.cc [5] ↗docs.notte.cc [6] ↗docs.browserless.io [7] ↗docs.browserless.io [8] ↗docs.browserless.io [9] ↗docs.browserless.io [10] ↗docs.browserless.io [11] ↗docs.browserless.io [12] ↗

What survives a session

Notte: Profiles save cookies, local storage and session storage. Sessions start with fresh state by default. Persisting a profile writes state back when the session ends; a running session can also save its state explicitly.

Browserless: Browserless documents authenticated profiles and reconnect flows. A retained profile and a reconnectable live browser preserve different state; choose the mechanism based on whether the running page must continue.

Sources: docs.notte.cc [1] ↗docs.browserless.io [2] ↗

Website login

Notte: Vaults substitute credential placeholders in supported browser actions outside the model context. Managed Auth checks requested saved connections before automation. Personas supply an inbox and optional phone number for verification workflows.

Browserless: BAP documents loadSecret() with a configured 1Password integration. Profiles provide another way to reuse authenticated state. Check the selected product's prerequisites before treating these as interchangeable login options.

Sources: docs.notte.cc [1] ↗docs.browserless.io [2] ↗

Where the code runs

Notte: Functions deploy Python code with a run() entry point. Invoke them over HTTP or with an SDK, inspect run history, and roll back code by redeploying an earlier version as the latest version.

Browserless: Browserless supports several code and control surfaces. Compare the exact runtime endpoint or external runner you intend to use, including its language, deployment, versioning and invocation contract.

Sources: docs.notte.cc [1] ↗docs.browserless.io [2] ↗

Published browser measurements

These are the latest provider runs in the saved BrowserArena snapshot checked on October 18, 2026. Dates and runner environments can differ. A lifecycle test opens, connects, navigates and releases a browser; the throughput test runs a separate browser action sequence. Neither measures managed authentication or deployed Function reliability.

Use these observations to choose what to test in your application. An account-configuration failure, an incompatible page action and a timed-out navigation require different interpretations. BrowserArena is maintained by Notte and publishes its source and methodology.

Sources: browserarena.ai [1] ↗browserarena.ai [2] ↗github.com [3] ↗

Pricing model

Notte: The public usage rates are $0.01 per browser-hour, $0.05 per Function-hour and $10 per GB of managed proxy traffic. Paid plans return their price as usage credits. Price the relevant meters and plan eligibility for the workload.

Browserless: Browserless Cloud uses units. Browser time consumes one unit per 30-second increment, rounding partial increments upward; proxy traffic and other services also consume units. Included units and overage depend on the plan.

Sources: notte.cc [1] ↗docs.browserless.io [2] ↗

Capacity and limits

Notte: The public plans list 5, 25 and 100 concurrent browser sessions, with custom limits on Enterprise. Session duration and concurrent capacity are separate plan limits; a larger technical API limit does not override the plan.

Browserless: Account concurrency and session routing affect a Browserless deployment. Use its concurrent-session guidance, and distinguish shared cloud, managed dedicated and self-hosted capacity.

Sources: notte.cc [1] ↗docs.browserless.io [2] ↗

Which approach fits?

Choose Notte when your browser workflow needs saved logins, credential fill or scheduled Python code alongside the browser.

Notte tradeoff: A saved profile restores browser state; it does not prove that a website still considers the user signed in. Use Managed Auth when the workflow needs connection readiness before it starts.

Choose Browserless when you need a browser service that fits existing automation libraries or a self-hosted deployment, and can select the appropriate Browserless product.

Browserless tradeoff: The connection route and product matter. A feature documented for BAP or a managed dedicated deployment should not be assumed to exist on every shared BaaS endpoint.

Sources: docs.notte.cc [1] ↗docs.browserless.io [2] ↗

Check the browser connection

Install playwright-core in your application and provision a session through the provider's documented creation flow. Run this smoke test from the intended controller region with the returned CDP endpoint. It checks connection and navigation, not login, rendering parity or a complete business workflow.

Keep browser connection URLs on your backend. After the test, release the owned session through the provider's API. Product-specific lifecycle APIs and profile identifiers are not portable between providers.

import { chromium } from "playwright-core";

// Provision the owned browser using the provider's documented session API.
// Keep the connection URL in your backend's secret environment.
const endpoint = process.env.BROWSER_CDP_URL;
if (!endpoint) throw new Error("Set BROWSER_CDP_URL for an owned session");

const browser = await chromium.connectOverCDP(endpoint);
try {
  const context = browser.contexts()[0] ?? await browser.newContext();
  const page = context.pages()[0] ?? await context.newPage();
  await page.goto("https://example.com", { waitUntil: "domcontentloaded" });
  if ((await page.title()) !== "Example Domain") {
    throw new Error("The browser did not reach the expected page");
  }
  console.log({ connected: true, expectedPage: true });
} finally {
  await browser.close();
  // Release the owned session with the provider's documented API as well.
  // A disconnected socket alone is not a portable session-cleanup contract.
}

Sources: playwright.dev ↗

Before you switch

Keep the same target workflow when evaluating both products. Separate infrastructure facts from measurements and test the required account state, action sequence and artifacts. A successful connection test does not establish that a long or authenticated task will complete.

Use the focused guides for Notte and Browserless below when the deciding requirement is pricing, persistence or code execution. Provider-owned resources such as session IDs, profiles and managed connections need a new mapping during migration.

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