Comparison

Selenium vs WebdriverIO

On the evidence we track, Selenium leads this comparison with a composite score of 72/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsMarkdownJSONGraphQLMarkdown is open. JSON and GraphQL need a free key.
★Selenium72
WebdriverIO47
Score
vioscaleAI score
Selenium72 / 100high · 76%
WebdriverIO47 / 100low · 22%
Pricing
Free tier
Selenium✓
WebdriverIO✓
Model
Seleniumopen_source
WebdriverIOopen_source
Price level
Seleniumfree
WebdriverIOfree
Transparent
Selenium✓
WebdriverIO✓
Integrations
Count
Selenium5
WebdriverIO14
Reliability
Status page
Selenium✓
WebdriverIO✓
Adoption
Dependent repos
Selenium98,124
WebdriverIO–
Github stars
Selenium34,541
WebdriverIO6
Package downloads weekly
Selenium6,935,447
WebdriverIO–
Activity
Commits last 30d
Selenium100
WebdriverIO3
Release
Cadence days
Selenium30
WebdriverIO–
History
Selenium20 items
WebdriverIO–
License
Spdx
SeleniumApache-2.0
WebdriverIOMIT
Language
Primary
SeleniumJava
WebdriverIOTypeScript
Market
Availability
WebdriverIO–
Content
Faq
Selenium6 items
WebdriverIO6 items

Capabilities

Feature-by-feature on the axes that matter for testing tools. “-” means undocumented, not absent.

Core
Test types
SeleniumUnit + integration + E2E
WebdriverIOUnit + integration + E2E
Browser automation
Selenium✓
WebdriverIO✓
Built-in assertion library
Selenium-
WebdriverIO✓
Languages
SeleniumJava, JavaScript, Python, Ruby, .NET
WebdriverIOJavaScript (Node.js)
Isolation
Mocking / stubbing
Selenium-
WebdriverIO✓
Techniques
Snapshot testing
Selenium-
WebdriverIO-
Performance
Parallel execution
Selenium✓
WebdriverIO-
Insight
Code coverage
Selenium-
WebdriverIO-
DX
Watch mode
Selenium-
WebdriverIO-
Ops
CI integration
Selenium✓
WebdriverIO✓

What each one is

The product in its own terms, so the numbers below have context.

Selenium

Leader

Selenium is an open-source testing framework that automates web browsers for testing applications and automating web-based administration tasks across multiple programming languages.

Independently observed

WebdriverIO

Enables automated testing of web browsers, mobile applications, and desktop software with built-in capabilities for network simulation, automatic waiting, and result reporting.

Independently observed

Pricing

List pricing as published by each vendor, with the date we read it. Always verify at the source before you buy.

Selenium

Leader
Open source
as of verify ↗

WebdriverIO

Open sourceFree tier
as of verify ↗

Platform & deployment

Where each product runs and how it can be hosted. A dash means undocumented, not unsupported.

Platforms
Web
Selenium✓
WebdriverIO✓
CLI
Selenium✗
WebdriverIO✓
Deployment
Self-hosted
Selenium✓
WebdriverIO✓

Integrations

What each product connects to. Counts come from the vendor's own integration directory where one exists.

In common (1)
  • Appium

Selenium

Leader
5 total - 4 not shared
  • Chrome
  • Firefox
  • Edge
  • Chrome for Testing (CfT)
Independently observed

WebdriverIO

16 total - 15 not shared
  • Sauce Labs
  • BrowserStack
  • TestingBot
  • TestMu AI
  • WebDriver
  • WebDriver BiDi
  • Allure
  • JUnit
  • Spec Reporter
  • Dot Reporter
  • SumoLogic
  • Concise Reporter
  • Lighthouse
  • Axe Core
  • Percy
Independently observed
Still deciding?

Selenium or WebdriverIO: which one depends on you

A composite score cannot know your constraints. Describe them and both get re-weighted against what you actually need, with the evidence behind every position.

Free to run, no account needed to start. How the evaluation works

Comparison generated from independently-sourced facts. Every value links to its source and retrieval date. See the method.