Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.
Entry price
Free and open source
Open sourceQuote on request
Quote onlyWhat drives the bill
The metric that actually scales your invoice.
Free and open source. You pay in engineering time and CI minutes.
Quote-based. Human-executed runs are billed separately from automated ones and are the expensive component.
Free tier
Everything, self-hosted
Free tier for a small number of automated tests.
Open source
Apache-2.0
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Widely used
Google · since 2017
Emerging
Rainforest QA · since 2012
Strengths
Limitations
Best for
Automation jobs that are not tests, or Chrome-only tooling where you want minimal dependencies.
Teams that need broad release-gate coverage including flows nobody wants to automate.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.