Comparison

Selenium vs Testing Library

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
Testing Library65
Score
vioscaleAI score
Selenium72 / 100high · 76%
Testing Library65 / 100high · 77%
Pricing
Free tier
Selenium✓
Testing Library✓
Model
Seleniumopen_source
Testing Libraryopen_source
Price level
Seleniumfree
Testing Libraryfree
Transparent
Selenium✓
Testing Library✓
Integrations
Count
Selenium5
Testing Library12
Reliability
Status page
Selenium✓
Testing Library–
Adoption
Dependent repos
Selenium98,124
Testing Library1,412,044
Github stars
Selenium34,541
Testing Library3,336
Package downloads weekly
Selenium6,935,447
Testing Library85,960,772
Activity
Commits last 30d
Selenium100
Testing Library1
Release
Cadence days
Selenium30
Testing Library15
History
Selenium20 items
Testing Library20 items
License
Spdx
SeleniumApache-2.0
Testing LibraryMIT
Language
Primary
SeleniumJava
Testing LibraryJavaScript
Market
Availability
Testing Library–
Content
Faq
Selenium6 items
Testing Library5 items

Capabilities

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

Core
Test types
SeleniumUnit + integration + E2E
Testing Library-
Browser automation
Selenium✓
Testing Library✗
Built-in assertion library
Selenium-
Testing Library✓
Languages
SeleniumJava, JavaScript, Python, Ruby, .NET
Testing LibraryJavaScript, TypeScript
Isolation
Mocking / stubbing
Selenium-
Testing Library✗
Techniques
Snapshot testing
Selenium-
Testing Library✗
Performance
Parallel execution
Selenium✓
Testing Library✗
Insight
Code coverage
Selenium-
Testing Library✗
DX
Watch mode
Selenium-
Testing Library✗
Ops
CI integration
Selenium✓
Testing Library✓

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

Testing Library

A family of testing utilities that help you test UI components by simulating how users interact with them, focusing on confidence-building tests that avoid implementation details.

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 ↗

Testing Library

Open sourceFree tier

Free, open source under MIT license

as of verify ↗

Platform & deployment

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

Platforms
Web
Selenium✓
Testing Library✓
Deployment
Self-hosted
Selenium✓
Testing Library–

Integrations

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

Selenium

Leader
5 total
  • Chrome
  • Firefox
  • Edge
  • Appium
  • Chrome for Testing (CfT)
Independently observed

Testing Library

13 total
  • Jest
  • Cypress
  • GitHub Actions
  • React
  • Vue
  • Angular
  • Svelte
  • React Native
  • Mocha
  • Puppeteer
  • Testcafe
  • Nightwatch
  • JSDOM
Independently observed
Still deciding?

Selenium or Testing Library: 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.