# Supported Browsers and Viewport Presets

URL: https://docs.testvibe.com/reference/supported-browsers-and-viewports

TestVibe runs browser tests through Playwright. The exact options available in a project come from its Playwright configuration, but most teams start with a small set of browser and viewport presets.

## Browser Choices

| Browser | Use it for | Chromium | Default daily coverage for Chrome-like browsers. | Firefox | Cross-browser checks for Firefox behavior. | WebKit | Safari-like coverage, especially for layout and mobile-sensitive behavior. 

Your project's Playwright configuration may define named projects such as `chromium-desktop` , `mobile-webkit` , `staging-smoke` , or `debug` . Choose the configuration that matches the coverage you want for the run.

## Viewport Presets

| Preset | Size | Use it for | Mobile portrait | `390x844` | Phone layouts with narrow navigation and vertical flow. | Mobile landscape | `844x390` | Horizontal phone layouts and responsive menus. | Tablet | `820x1180` | Tablet navigation, sidebars, and touch-friendly layouts. | Desktop 1080p | `1920x1080` | Standard desktop validation. 

Teams can also define custom viewports in Playwright configuration.

## Choosing A Profile

| Goal | Recommended choice | Fast everyday validation | Chromium with desktop 1080p. | Check responsive layout | Mobile portrait and tablet. | Reproduce a user report | Match the user's browser and viewport as closely as possible. | Prepare for release | Run the important tests across desktop, mobile, and the browsers your users rely on. 

## Related Pages

- [Choose browser, viewport, and configuration](/run-tests/browser-viewport-configuration)
- [Run one test](/run-tests/run-one-test)
- [Run the full suite](/run-tests/run-full-suite)