PhaseLab is a macOS application that allows developers to easily switch between different versions of Chrome, Chromium, and Chrome for Testing. It's essential for browser testing, web scraping, and automation workflows.

Does PhaseLab offer a free trial?

Yes! PhaseLab offers a 7-day free trial with full access to all features. No credit card required to start. After the trial, it's just $7.99/month.

What operating systems does PhaseLab support?

PhaseLab is currently available for macOS 12.0 (Monterey) and later. Full support for Apple Silicon (M1/M2/M3) and Intel Macs is included.

Can I use PhaseLab for Selenium, Puppeteer, or Playwright testing?

Absolutely! PhaseLab is perfect for browser automation. It manages Chrome for Testing versions which are specifically designed for tools like Selenium, Puppeteer, and Playwright.

How does CDP scripting work in PhaseLab?

PhaseLab connects directly to Chrome via Chrome DevTools Protocol (CDP). You can execute JavaScript across all running instances, navigate pages, and collect data without using Selenium or WebDriver. It's faster and doesn't trigger automation detection.

Are browser sessions truly isolated?

Yes. Each browser instance runs in a completely separate sandbox with its own cookies, localStorage, cache, and session data. Sites cannot link sessions together, making it ideal for multi-account workflows and research.

Can I use different proxies for each browser instance?

Yes! PhaseLab supports per-session proxies. Configure HTTP, HTTPS, or SOCKS5 proxies for each instance individually. No system-wide VPN switching required.

Where does PhaseLab download Chrome versions from?

PhaseLab downloads directly from official Google sources: the Chrome for Testing API and Chromium archives. No third-party binaries - the same builds Google publishes.

PhaseLab - Browser Research Command Center

PhaseLab