head to head · open source
selenium vs vitest
selenium has 34,584 GitHub stars, 8,727 forks, 188 open issues and last shipped yesterday. vitest has 17,323 stars, 2,124 forks, 425 open issues and last shipped yesterday. selenium leads on adoption by 100% (34,584 vs 17,323 stars). selenium is written in Java under Apache-2.0; vitest is written in TypeScript under MIT. selenium has attracted 25% as many forks as stars, vitest 12%. selenium was the more recently maintained of the two, and both are self-hostable with no licence fee.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
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Side by side
| selenium | vitest | |
|---|---|---|
| GitHub stars | ★ 35K | ★ 17K |
| License | Apache-2.0 | MIT |
| Written in | Java | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 8.7K | ⑂ 2.1K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick selenium if
- You weight community size — 35K stars and counting
- You want the Apache-2.0 license terms
- Your stack matches Java
- You value the larger contributor base for long-term maintenance
pick vitest if
- You want the vitest feature set and don't need the biggest community
- You prefer the MIT license terms
- Your stack matches TypeScript
- You evaluated both and vitest fits your workflow better
About selenium
Selenium Automates browsers. That's it! Contributing • Installing • Building • Developing • Testing • Documenting • Releasing Selenium is an umbrella project encapsulating a variety of tools and libraries enabling web browser automation. Selenium specifically provides an infrastructure for the W3C WebDriver specification — a platform and language neutral coding interface compatible with all major web browsers. The project is made possible by volunteer contributors who've generously donated thousands of hours in code development and upkeep. This README is for developers interested in contributing to the project…
read the full selenium overview →
About vitest
Vitest Next generation testing framework powered by Vite. Get involved! Documentation Getting Started Examples Why Vitest? 中文文档 Features Vite's config, transformers, resolvers, and plugins. Use the same setup from your app! Jest Snapshot Chai built in for assertions, with Jest expect compatible APIs Smart & instant watch mode, like HMR for tests! Native code coverage via v8 or istanbul . Jest compatible mocking, stubbing, and spies. JSDOM and happy dom for DOM and browser API mocking Browser Mode for running component tests in the browser Components testing (Vue, React, Svelte, Lit, Marko) Benchmarking support…
read the full vitest overview →
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Frequently asked questions
Is selenium or vitest more popular?
selenium has 34,584 GitHub stars and vitest has 17,323. selenium has the larger community by that measure.
Are selenium and vitest free?
Both are open source. selenium is licensed under Apache-2.0 and vitest under MIT. Neither carries a licence fee.
What is the difference between selenium and vitest?
selenium is written in Java and vitest in TypeScript. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, selenium or vitest?
Choose selenium if you want the larger community (34,584 stars) or its Apache-2.0 licence terms. Choose vitest if its feature set, stack or MIT licence fits better. Both are self-hostable.