k6 vs Selenium
Updated June 2026 · A structured head-to-head comparison.
The verdict
Both k6 and Selenium are credible software testing tools, and the right pick comes down to your priorities.
Choose k6 if you want broader platform coverage and a higher overall rating (4.6/5). Load testing for engineering teams.
Selenium - Open-source browser automation framework
k6 vs Selenium: side by side
| Dimension | k6 | Selenium |
|---|---|---|
| Starting price | Free | Free |
| Free plan | Yes | Yes |
| Pricing model | Freemium | Open source |
| Best for | Developers, Sre | Qa Engineers, Developers |
| Platforms | Mac, Windows, Linux, ApiWinner | Self Hosted, Api |
| Rating | 4.6/5Winner | 4.3/5 |
k6 key facts
- Vendor
- Grafana Labs
- Pricing
- Freemium - Free
- Free tier
- Yes
- Platforms
- Mac, Windows, Linux, Api
- Best for
- Developers, Sre
- Editor rating
- 4.6 / 5
- Founded
- 2017
- Headquarters
- Stockholm, Sweden
Selenium key facts
- Vendor
- Software Freedom Conservancy
- Pricing
- Open source - Free
- Free tier
- Yes
- Platforms
- Self Hosted, Api
- Best for
- Qa Engineers, Developers
- Editor rating
- 4.3 / 5
- Founded
- 2004
- Headquarters
- Remote
Frequently asked questions
Is k6 better than Selenium?
Neither is universally better - k6 edges ahead on overall rating, but the best choice depends on price, platforms, and your use case. See the side-by-side table above.
Is k6 or Selenium cheaper?
k6 is the more affordable of the two to get started, at free. k6 starts at free; Selenium starts at free.
Can k6 replace Selenium?
Yes for most teams - both are software testing tools with heavily overlapping features. The main trade-offs are pricing and platform support, covered in the comparison above.