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Selenium

Automated web browser control for testing and task automation

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Also known as
selenium

Available worldwide

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.

Independently observed

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.

Pricing as of verify at live pricing ↗Independently observed
Open sourceFree tier

Free and open-source (Apache 2.0 license)

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.

Core
Test types
-
Browser automation
✓
Built-in assertion library
-
Languages
Java, JavaScript, Python, Ruby, .NET
Isolation
Mocking / stubbing
-
Techniques
Snapshot testing
-
Performance
Parallel execution
✓
Insight
Code coverage
-
DX
Watch mode
-
Ops
CI integration
✓
Independently observed

Platform & deployment

Independently observed
Platforms
  • Web
Deployment
  • 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.

Source: https://github.com/SeleniumHQ/selenium

Selenium alternatives

Other testing tools we track, ranked by the same independent score.

All Selenium alternatives, ranked →

Compare Selenium

Side by side against other testing tools, attribute by attribute, with a source on every value.

Independent · unbought · dated

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.

Balanced composite 73 / 100
high · 77%
Signal contributions to the composite score
SignalScoreWeightContributionEvidence
Package downloads930.1716.0✓
Dependent projects970.087.7✓
Development activity630.127.6✓
Capabilities670.085.6✓
Release cadence830.075.6✓
Stars860.032.8✓
Security score310.051.6✓
Integrations220.051.2✓
Security posture00.090.0-
Developer Q&A activity00.080.0-

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

AttributeValueEvidence
Commits last 30d100mediumsource · 2026-09-10 · 65%

Adoption

AttributeValueEvidence
Github stars34,486highsource · 2026-09-10 · 90%
Package downloads weekly13,857,103highsource · 2026-08-26 · 85%
Dependent repos622,782highsource · 2026-09-10 · 85%

Content

AttributeValueEvidence
Faq6 itemsmediumsource · 2026-09-10 · 67%

Features

AttributeValueEvidence
CapabilitiesLanguages: Java, JavaScript, Python, Ruby, .NET · Ci integration: Yes · No code recorder: Yes · Browser automation: Yes · Parallel execution: Yesmediumsource · 2026-09-10 · 60%

Integrations

AttributeValueEvidence
Count5mediumsource · 2026-08-14 · 60%

Language

AttributeValueEvidence
PrimaryJavahighsource · 2026-09-10 · 90%

License

AttributeValueEvidence
SpdxApache-2.0highsource · 2026-09-10 · 95%

Market

AttributeValueEvidence
AvailabilityPrimaryMarkets: … · AvailabilityScope: global · AvailableCountries: … · NotAvailableCountries: …highsource · 2026-08-14 · 75%

Pricing

AttributeValueEvidence
Free tierYesmediumsource · 2026-08-14 · 60%
Modelopen_sourcemediumsource · 2026-08-14 · 60%
Price levelfreemediumsource · 2026-08-14 · 60%
TransparentYesmediumsource · 2026-08-14 · 60%

Release

AttributeValueEvidence
Cadence days30mediumsource · 2026-09-10 · 70%
History20 itemsmediumsource · 2026-09-10 · 70%

Reliability

AttributeValueEvidence
Status pageYesmediumsource · 2026-08-14 · 60%

Security

AttributeValueEvidence
Scorecard3.1highsource · 2026-09-10 · 90%
VulnerabilitiesCount: 0 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=npm&package_name=selenium-webdriver&per_page=100 · Last 12m: 0highsource · 2026-09-10 · 90%
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