Browserbase alternative on your own machine: 6 limits compared

Browserbase is a common choice for putting an agent in front of a browser without running one, and for many teams it is the right one. The question behind "Browserbase alternative" is usually narrower: what happens when the agent needs the same identity every day, runs longer than a session allows, or signs in to accounts with a second factor. We read Browserbase's own documentation and pricing on 24 September 2026 and set the six limits that matter for an agent next to a browser on your own machine.

What does Browserbase offer?

Browserbase offers hosted Chromium sessions that an agent reaches over a connect address, with no machine to operate. Its homepage names "10,000 customers, including Ramp, Microsoft, and Lovable" and states that it "runs 35m+ browser sessions a month". Its plans include SOC 2 on every tier, 100 concurrent sessions on the 99 USD Startup plan and a HIPAA agreement on the Scale plan. Stagehand, its open-source agent SDK, had 25,362 GitHub stars on the day we read it. For a team without spare hardware, or with compliance requirements, that covers the operating side entirely.

Which 6 limits matter for an agent?

Six limits decide whether an agent's work fits a hosted session, and all six are written down in Browserbase's own documentation.

The fingerprint row carries two details from the Verified documentation. "Viewport customization is not available for Verified sessions regardless of the selected OS", and a session without an operating system chosen "falls back to the default desktop fingerprint". A fleet of Verified desktop sessions therefore presents one screen size across all of them. The last two rows come from the website authentication guide, which lists "Disable 2FA or create an app password" as the first strategy for two-step verification and recommends to "disable or bypass" passkeys in automated sessions.

When is a local browser the better fit?

A local browser is the better fit when the agent keeps accounts, works for hours and needs a device that stays the same from one run to the next. In an agent browser on your machine, the screen and the graphics card are the machine's own, the profile with its cookies and passkeys stays on your disk, and a second factor is computed where the secret is stored instead of waiting for a person. The price moves from minutes to machines: you pay for the computer and for how many browsers run on it at once, not for the time each one is open.

A hosted browser is the better fit when you have no machine to keep running, when a burst of 100 sessions matters more than any single identity, or when a signed compliance agreement is part of the purchase.

How does a cloud browser compare in general?

The other hosted browsers price the same limits differently rather than removing them. Browser Use charges 0.02 USD per browser hour and 5 USD per GB for its residential proxies, or 0.20 USD per GB with your own proxy. Kernel prices a browser with a real graphics card at 2.88 USD an hour, 48 times its headless rate, and its own bot detection documentation calls software rendering "a strong bot signal". Each of them runs the browser on hardware you do not control, which is the one limit a plan cannot change.

So which should you pick?

Our verdict: Browserbase is the right tool when the browser is a short-lived utility, and a browser on your own machine is the right tool when the browser is an identity the agent has to keep. If you are moving existing Browserbase code, the Browserbase migration guide shows the three places where a session's connect address, context and proxy become a profile.