Jest vs TestNG

Free and open source

Free and open source

Free and open source. You pay in engineering time and CI minutes.

Free and open source. You pay in engineering time and CI minutes.

Everything, self-hosted

Everything, self-hosted

Category standard

OpenJS Foundation · since 2014

Widely used

TestNG Team · since 2004

• Everything in one dependency, with defaults that work for most projects on day one.
• The largest ecosystem of matchers, reporters and framework presets in JavaScript.
• Snapshot testing is genuinely useful for serialisable output when used with restraint.

• Mature parallel-execution and grouping model, ideal for large Selenium suites.
• Data providers make data-driven testing straightforward.
• Test dependencies and ordering, which JUnit deliberately avoids.

• Native ESM support remains awkward, and the Babel transform layer is a recurring configuration tax.
• Noticeably slower than Vitest on large suites.
• jsdom is not a browser; subtle DOM and CSS behaviour differs from reality.

• XML suite configuration is dated and error-prone.
• Test dependencies encourage ordering coupling that makes suites fragile.
• Community momentum favours JUnit 5 for new projects.

Existing JavaScript codebases, React Native, and teams that value ecosystem depth over raw speed.

Java Selenium automation frameworks and large integration suites.