Comparison

Jest vs k6

On the evidence we track, Jest leads this comparison with a composite score of 80/100. Scores are only directly comparable because these tools share a category; the full breakdown and every source is below.

Machine formatsJSONMarkdownGraphQLor send Accept: application/json
Jest80
k647
Score
Vioscale score
Jest80 / 100medium · 71%
k647 / 100medium · 73%
Pricing
Free tier
Jest
k6
Price level
Jestfree
k6low
Integrations
Count
Jest6
k66
Reliability
Status page
Jest
k6
Adoption
Dependent repos
k6
Github stars
Jest45,474
k6
Package downloads weekly
k6
Stackoverflow questions
Jest44,000
k6
Activity
Commits last 30d
Jest92
k6
Release
Cadence days
Jest17
k6
History
k6
License
Spdx
JestMIT
k6
Language
Primary
k6
Content
Faq
k6

Capabilities

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

Core
Test types
Jest-
k6-
Browser automation
Jest
k6
Built-in assertion library
Jest
k6
Languages
JestJavaScript, TypeScript
k6JavaScript
Isolation
Mocking / stubbing
Jest
k6-
Techniques
Snapshot testing
Jest
k6-
Performance
Parallel execution
Jest
k6
Insight
Code coverage
Jest
k6-
DX
Watch mode
Jest
k6-
Ops
CI integration
Jest
k6

What each one is

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

Jest

Leader

A testing tool for JavaScript projects that provides assertions, mocking, snapshot testing, and code coverage analysis with parallel test execution and zero-configuration defaults.

Independently observed

k6

Open source and SaaS load testing platform for engineering teams. Supports load testing, end-to-end web testing, synthetic monitoring, fault injection testing, infrastructure testing, and regression testing.

Independently observed

Pricing

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

Jest

Leader
Open sourceFree tier

Free and open source

as of verify ↗

k6

HybridFree tier

Open source (free) and cloud-based SaaS (pricing not detailed)

as of verify ↗

Platform & deployment

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

Platforms
Web
Jest
k6
CLI
Jest
k6
Deployment
Cloud / SaaS
Jest
k6
Self-hosted
Jest
k6
Hybrid
Jest
k6

Integrations

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

Jest

Leader
6 total
  • React
  • Angular
  • Vue
  • TypeScript
  • Babel
  • Node
Independently observed

k6

6 total
  • Postman
  • New Relic
  • Visual Studio
  • Grafana
  • IntelliJ IDEA
  • Datadog
Independently observed

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

Jest vs k6: an evidence-based comparison · Vioscale