All testing tools

Developer-first browser testing with an interactive runner developers actually enjoy.

Google's native Android UI testing framework. Fast, stable, Android-only.

The JavaScript testing incumbent: batteries included, snapshots, huge ecosystem.

The Java testing standard, rebuilt with extensions and parameterised tests.

Intercept requests at the network layer so your app code never knows it is mocked.

The PHP testing standard, integrated into every major PHP framework.

The de facto Python testing framework: fixtures, parametrisation, plugins.

Build components in isolation, then test the stories you already wrote.

Real databases and services in throwaway Docker containers, per test run.

Query the DOM the way a user would, not the way the framework does.

Vite-native test runner with instant watch mode and a Jest-compatible API.

Apple's native UI testing framework, built into Xcode.

The modern .NET testing framework, and the one Microsoft's templates default to.

Visual testing and review built by the Storybook team, for Storybook.

Minimal, unopinionated Node.js test runner you assemble to taste.

The long-standing .NET test framework with the richest assertion set.

A friendlier front end for PHPUnit with a function-based, expressive API.

Ruby's behaviour-driven testing framework with an exceptionally readable DSL.

Java test framework built for suite configuration, grouping and data providers.

Python's standard-library xUnit framework. Always there, never exciting.

Concurrent Node.js test runner that isolates every file in its own process.

Behaviour-driven JavaScript testing framework with no external dependencies.

Node.js's built-in test runner. Zero dependencies, already installed.