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. Microsoft also sells a hosted parallel-runner service; the library itself has no paid tier.
Quote-based annual contracts sized by test runs.
Free tier
Everything, self-hosted
Two-week free trial.
Open source
Apache-2.0
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Category standard
Microsoft · since 2020
Emerging
Autify, Inc. · since 2016
Strengths
Limitations
Best for
Teams that write their own tests and want the lowest-flake open-source option available.
Small QA teams that need automation without an engineering hire.
All of these integrate with: GitHub Actions, Jenkins, CircleCI.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.