Selenium
The de facto standard for browser automation — drives any major browser via WebDriver protocol, mature ecosystem with grid for parallel execution.
74
Hero Score
Popularity
88
Performance
30
Ecosystem
100
Maturity
85
Dev Experience
65
⭐ 34,142 stars⬇ 11.2M downloads/wkFirst release: Apr 2008Last release: May 2026
Async Support: NoPlugin Extensions: Very highSpeed: MediumDoc Quality: HighLearning Curve: Medium
Pros
- • Massive ecosystem — bindings in every language, integrations everywhere
- • Selenium Grid enables large-scale parallel browser automation
- • Mature, battle-tested across 15+ years of QA and scraping use cases
Cons
- • Slower and more flaky than modern alternatives like Playwright
- • No native async support; requires threads or external libs for concurrency
- • Manual waits often needed; less ergonomic auto-waiting than newer tools