Selenium WebDriver vs QA Wolf

Free and open source

Quote on request

Free and open source. The real cost is grid infrastructure or a device-cloud subscription.

Annual service contracts. Substantially cheaper than hiring an in-house automation team, substantially more expensive than a tool licence.

Everything, self-hosted

Category standard

Software Freedom Conservancy · since 2004

Emerging

QA Wolf · since 2019

• The widest language and browser support of anything in the category, including legacy browser versions.
• A W3C standard, so it will outlive any single vendor. Skills transfer between employers.
• Every device cloud speaks Selenium, which keeps you portable between vendors.

• Removes the maintenance burden entirely — no flaky-test triage on your side.
• You own the Playwright code, so leaving is possible.
• Coverage arrives in weeks rather than quarters.

• No built-in waiting strategy, reporting, parallelism or assertions — expect to assemble and maintain a framework around it.
• Explicit waits are your problem, and getting them wrong is the number one source of flake in real Selenium suites.
• Out-of-process communication makes it slower than Playwright or Cypress.

• It is headcount, not software — the cost profile is completely different from a licence.
• External team needs deep product context to test meaningfully.
• Fast-moving products can outpace the feedback loop with an external author.

Enterprises with polyglot teams, legacy browser requirements, or an existing grid investment.

Funded startups that need coverage now and have no QA hire in the plan.