Selenium
A framework for automating web browser interactions
- Also known as
- selenium
Available worldwide
What is Selenium?
Selenium is an open-source testing framework that automates web browsers for testing applications and automating web-based administration tasks across multiple programming languages.
Selenium pricing
We don't have Selenium's full plan breakdown yet (its pricing page resisted automated reading). Here's what we could confirm. Always check live pricing for exact numbers.
What Selenium does
The capabilities that matter for testing tools, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Test types
- Unit + integration + E2E
- Browser automation
- ✓
- Built-in assertion library
- -
- Languages
- Java, JavaScript, Python, Ruby, .NET
- Mocking / stubbing
- -
- Snapshot testing
- -
- Parallel execution
- ✓
- Code coverage
- -
- Watch mode
- -
- CI integration
- ✓
Platform & deployment
Independently observed- Web
- Self-hosted
Integrations (5)
Independently observed- Chrome
- Firefox
- Edge
- Appium
- Chrome for Testing (CfT)
Security & compliance
Known vulnerabilities: 0 (0 in the last 12 months) sourcea count reflects scale & disclosure, not quality
Selenium FAQ
Common questions about Selenium, answered from independent, dated evidence.
What is Selenium?
Open-source tool that automates web browsers to enable automated testing of web applications, regression testing, and automation of repetitive web-based administrative tasks. Includes WebDriver for robust test automation, IDE for record-and-playback scripting, and Grid for distributed test execution. It is indexed under Testing Tools.
Source: https://www.selenium.dev
Is Selenium free to use?
Selenium is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Pricing changes often, so verify at source before relying on it.
Source: https://www.selenium.dev
What platforms does Selenium support?
Selenium supports Windows, macOS, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.
Source: https://www.selenium.dev
Can Selenium be self-hosted?
Yes. Selenium can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.
Source: https://www.selenium.dev
What does Selenium integrate with?
We have confirmed 4 integrations for Selenium, including Chrome, Firefox, Edge and Appium. This is what we could verify from public sources, so the vendor may support others we have not indexed.
Source: https://www.selenium.dev
Is Selenium open source?
Yes. Selenium is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.
Selenium alternatives
Other testing tools we track, ranked by the same independent score.
- JestA straightforward testing framework for JavaScript projectsmedium · 69%
- PlaywrightA browser automation and testing framework supporting Chromium, Firefox, and WebKithigh · 76%
- pytestPython testing framework emphasizing simplicity with sophisticated scalabilitymedium · 72%
- VitestA Vite-powered testing framework for modern developmentmedium · 70%
- PuppeteerControl browsers programmatically from JavaScriptmedium · 66%
- CypressEnd-to-end testing framework that executes tests in real browsers with built-in debugging and team collaboration featureshigh · 77%
Compare Selenium
Side by side against other testing tools, attribute by attribute, with a source on every value.
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Selenium, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Package downloads | 89 | 0.17 | 15.4 | ✓ |
| Development activity | 63 | 0.12 | 7.6 | ✓ |
| Capabilities | 81 | 0.08 | 6.7 | ✓ |
| Dependent projects | 83 | 0.08 | 6.7 | ✓ |
| Release cadence | 83 | 0.07 | 5.6 | ✓ |
| Stars | 86 | 0.03 | 2.8 | ✓ |
| Security score | 29 | 0.05 | 1.5 | ✓ |
| Integrations | 22 | 0.05 | 1.2 | ✓ |
| Security posture | 0 | 0.09 | 0.0 | - |
| Developer Q&A activity | 0 | 0.08 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 100 | mediumsource · 2026-10-13 · 65% |
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 6 items | mediumsource · 2026-09-10 · 67% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Protocol: multi · Languages: Java, JavaScript, Python, Ruby, .NET · Test types: e2e · Open source: Yes · Headless mode: Yes · Ci integration: Yes | mediumsource · 2026-10-13 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 5 | mediumsource · 2026-08-14 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | Java | mediumsource · 2026-10-13 · 63% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | Apache-2.0 | highsource · 2026-10-13 · 99% |
Market
| Attribute | Value | Evidence |
|---|---|---|
| Availability | PrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: … | highsource · 2026-08-14 · 75% |
Pricing
Release
Reliability
| Attribute | Value | Evidence |
|---|---|---|
| Status page | Yes | mediumsource · 2026-10-13 · 60% |
Security
| Attribute | Value | Evidence |
|---|---|---|
| Scorecard | 2.9 | highsource · 2026-10-13 · 90% |
| Vulnerabilities | Count: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=maven&package_name=org.seleniumhq.selenium%3Aselenium-java&per_page=100 · Last 12m: 0 | highsource · 2026-10-13 · 90% |
| Trust center | https://www.selenium.dev/categories/security/ | mediumsource · 2026-10-13 · 60% |
Is Selenium the right choice for you?
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