Selenium vs k6(2026)
Selenium is better for teams that need most mature browser automation tool. k6 is the stronger choice if developer-friendly (js scripts). Selenium is free and k6 is open-source (from $49/month (Grafana Cloud)).
Full feature breakdown, pricing details, and pros & cons below.
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Selenium
Selenium is the original browser automation framework used for end-to-end testing across all major browsers.
Visit Seleniumk6
k6 is a modern load testing tool using JavaScript/TypeScript scripts to simulate thousands of virtual users hitting your APIs.
Starting at $49/month (Grafana Cloud)
Visit k6How Do Selenium and k6 Compare on Features?
| Feature | Selenium | k6 |
|---|---|---|
| Pricing model | free | open-source |
| Starting price | Free | $49/month (Grafana Cloud) |
| Multi-browser support | ✓ | — |
| Multiple language bindings | ✓ | — |
| Grid for parallel testing | ✓ | — |
| WebDriver protocol | ✓ | — |
| IDE recorder | ✓ | — |
| Load & performance testing | — | ✓ |
| JavaScript scripting | — | ✓ |
| Thresholds & SLOs | — | ✓ |
| Browser testing | — | ✓ |
| Extensions | — | ✓ |
| Grafana integration | — | ✓ |
Selenium Pros and Cons vs k6
Selenium
k6
Should You Use Selenium or k6?
Choose Selenium if…
- •Most mature browser automation tool
- •Multi-language (Java, Python, C#, JS)
- •Large community
Choose k6 if…
- •Developer-friendly (JS scripts)
- •Low resource usage
- •Excellent metrics output