What it does
Sauce Labs Web App Testing provides cloud-hosted browsers and devices for testing websites. A tester can open a live browser session to check a user flow, or connect an automation project such as Selenium to run scripted tests remotely. Sauce Labs maintains the browser infrastructure and records test artifacts such as videos and screenshots. The target website and the checks still come from the team doing the testing.
Manual checks and automated suites
For a quick compatibility check, start a live cross-browser session and select a supported browser and operating system. Open the website you want to validate and exercise a user path such as search, sign-in, or checkout layout. The live-testing guide covers desktop and mobile browser sessions and notes that simultaneous sessions are limited by the concurrency allowance on the account.
For repeatable checks, the Selenium quickstart shows a remote WebDriver workflow. It requires a Sauce Labs account, the account username and access key, plus an existing test project. Keep credentials in the CI system's secret store rather than committing them with test code. The cloud runs the browser session; the test author supplies the expected behavior and assertions.
Sauce Labs lists recurring monthly and annual plans and a trial route. The product page emphasizes parallel execution and captured videos or screenshots. It is useful when a team needs coverage across combinations it does not want to maintain locally, but the account plan controls concurrency and session allowances. Exact plan prices are not repeated here.
Strengths
- Live testing supports manual checks across remote browser, operating-system, and device combinations.
- Automated workflows can use existing frameworks such as Selenium rather than requiring the team to adopt a proprietary test language.
- Recorded videos, screenshots, and Selenium logs help reviewers inspect a remote test result.
Watch out for
- Automated sessions require a Sauce Labs account and access credentials, and parallel live sessions are limited by the account's concurrency allowance.
Best for
- Checking a web application across browser versions and operating systems without maintaining a local device grid
- Running existing Selenium tests on cloud browsers in a development or CI workflow
- Manually reproducing browser-specific layout or interaction issues
Sources
- Cross Browser Testing Tool (Oct 25, 2026)
- Web App Testing | Sauce Labs Documentation (Oct 25, 2026)
- Live Cross Browser Testing | Sauce Labs Documentation (Oct 25, 2026)
- Selenium Quickstart | Sauce Labs Documentation (Oct 25, 2026)
- Pricing | Sauce Labs (Oct 25, 2026)