Keywords AI

Browserless vs Google Project Mariner

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

Quick Comparison

	Browserless	Google Project Mariner
Category	Browser Agents	Browser Agents
Pricing	Freemium	—
Best For	Developers who need headless browser infrastructure for scraping, testing, and automation	—
Website	browserless.io	deepmind.google
Key Features	Headless browser as a service Chrome DevTools Protocol Session management Puppeteer and Playwright compatible Docker-based deployment	—
Use Cases	Headless browser infrastructure Web scraping at scale PDF generation Screenshot services Automated testing infrastructure	—

When to Choose Browserless vs Google Project Mariner

Choose Browserless if you need

Headless browser infrastructure
Web scraping at scale
PDF generation

Pricing: Freemium

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 Browserless

Browserless provides headless browser infrastructure as a service for web scraping, testing, and AI automation. It offers managed Chrome and Firefox instances with Puppeteer and Playwright compatibility, automatic scaling, session recording, and anti-detection features. Browserless is used by thousands of companies for web data extraction and automated browser testing.

View Browserless 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.