Keywords AI

Browserbase vs Google Project Mariner

Compare Browserbase and Google Project Mariner side by side. Both are tools in the Browser Agents category.

Quick Comparison

	Browserbase	Google Project Mariner
Category	Browser Agents	Browser Agents
Pricing	Usage-based	—
Best For	Developers building AI browser agents who need reliable cloud browser infrastructure	—
Website	browserbase.com	deepmind.google
Key Features	Cloud browser infrastructure for AI Headless browser sessions Session recording and replay Stealth mode for bot detection API and SDK access	—
Use Cases	Running browser agents in the cloud Web scraping at scale Automated web testing Browser-based workflow automation AI agent infrastructure	—

When to Choose Browserbase vs Google Project Mariner

Choose Browserbase if you need

Running browser agents in the cloud
Web scraping at scale
Automated web testing

Pricing: Usage-based

How to Choose a Browser Agents Tool

Key criteria to evaluate when comparing Browser Agents solutions:

ReliabilityHow consistently the agent completes tasks without getting stuck or making errors.

Website compatibilityAbility to handle dynamic sites, SPAs, authentication, and CAPTCHAs.

Cloud infrastructureManaged browser infrastructure vs requiring your own browser instances.

Developer experienceQuality of APIs, SDKs, and debugging tools for building browser automation.

Security modelSandboxing, credential handling, and data isolation between sessions.

About Browserbase

Browserbase provides cloud browser infrastructure for AI agents. It offers headless browser instances with stealth capabilities, session management, and debugging tools that enable AI agents to navigate websites, fill forms, extract data, and complete web-based tasks. Browserbase handles the infrastructure complexity of running browsers at scale for autonomous AI workflows.

View Browserbase profile →Visit website

About Google Project Mariner

Google Project Mariner brings agentic browsing directly into Chrome, powered by Gemini. It can understand and interact with web pages — reading content, clicking buttons, filling forms, and navigating across sites. As a native Chrome feature for AI subscribers, Project Mariner represents the shift of browser agents from standalone tools to built-in browser capabilities, leveraging Google's unmatched understanding of web structure.

View Google Project Mariner profile →Visit website

What is Browser Agents?

AI agents and infrastructure for autonomously navigating web browsers—clicking, typing, scraping, and completing multi-step web tasks for testing and automation.

Browse all Browser Agents tools →

Frequently Asked Questions

What is a browser agent?▾

A browser agent is an AI that can autonomously control a web browser — navigating pages, clicking buttons, filling forms, and extracting information. Unlike traditional scrapers, browser agents can handle dynamic websites and make decisions.

How reliable are browser agents?▾

Reliability varies by task complexity. Simple, well-defined tasks are highly reliable. Complex multi-step tasks across unfamiliar websites still have meaningful failure rates. The technology is improving rapidly.