Comparison

TestNG vs Vitest

On the evidence we track, Vitest leads this comparison with a composite score of 74/100. 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.
TestNG55
★Vitest74
Score
vioscaleAI score
TestNG55 / 100low · 41%
Vitest74 / 100medium · 70%
Pricing
Free tier
TestNG✓
Vitest✓
Model
Price level
TestNGfree
Vitestfree
Transparent
TestNG–
Vitest✓
Integrations
Count
TestNG4
Vitest2
Reliability
Status page
TestNG✓
Vitest–
Adoption
Dependent repos
TestNG112,338
Vitest30,558
Github stars
TestNG2,061
Vitest17,212
Package downloads weekly
TestNG–
Stackoverflow questions
TestNG–
Vitest1,200
Activity
Commits last 30d
TestNG100
Vitest100
Release
Cadence days
TestNG103
Vitest5
History
TestNG12 items
Vitest20 items
License
Spdx
VitestMIT
Language
Primary
TestNGJava
Content
Faq
TestNG6 items
Vitest8 items

Capabilities

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

Core
Test types
TestNG-
Vitest-
Browser automation
TestNG✗
Vitest✓
Built-in assertion library
TestNG✓
Vitest✓
Languages
TestNGJava
VitestTypeScript, JSX
Isolation
Mocking / stubbing
TestNG-
Vitest✓
Techniques
Snapshot testing
TestNG-
Vitest✓
Performance
Parallel execution
TestNG✓
Vitest✓
Insight
Code coverage
TestNG-
Vitest✓
DX
Watch mode
TestNG-
Vitest✓
Ops
CI integration
TestNG✓
Vitest-

What each one is

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

TestNG

An open-source testing framework that provides utilities and tools for Java developers to write and execute automated tests

Independently observed

Vitest

Leader

A testing framework powered by Vite, offering Jest-compatible features including snapshots, code coverage, and mocking capabilities. It provides native TypeScript and JSX support, browser-based testing, watch mode, and benchmarking.

Independently observed

Pricing

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

TestNG

Open sourceFree tier
as of verify ↗

Vitest

Leader
Open source
as of verify ↗

Platform & deployment

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

Platforms
Web
TestNG✗
Vitest✓
CLI
TestNG✓
Vitest✓
Deployment
Self-hosted
TestNG✓
Vitest✓

Integrations

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

TestNG

4 total
  • Eclipse
  • IntelliJ
  • Maven
  • Gradle
Independently observed

Vitest

Leader
2 total
  • Vite
  • Jest
Independently observed
Still deciding?

TestNG or Vitest: 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.