Testing — independent software & tools
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Chaos-MCP
Chaos-MCP is an MCP stdio server that runs isolated mutation testing against a target codebase to expose gaps in its test suite. It wraps four language engines — StrykerJS (TS/JS), cosmic-ray (Python), cargo-mutants (Rust), Infection (PHP) — and exposes three tools: audit_code_resilience, triage_test_coverage, and estimate_audit.
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debug-recorder-mcp
TypeScript MCP server for structured debug session capture, reproducible diagnostics, event recording, and developer workflow observability.
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suitest
Self-hostable, MCP-native testing platform. Manual test management, deterministic runs, optional AI. Your stack, your LLM, your data.
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appium-android-driver
Android UiAutomator and Chrome support for Appium
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@appium/support
Support libs used across Appium packages
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@applitools/eyes-testcafe
Applitools Eyes SDK for TestCafe
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@applitools/screenshoter
Applitools universal screenshoter for web and native applications
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archunit
ArchUnit TypeScript is an architecture testing library, to specify and assert architecture rules in your TypeScript app
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@avalix/chroma
End-to-end testing library for Polkadot, Ethereum, and Solana wallet interactions
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axe-core
Accessibility engine for automated Web UI testing
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@axe-core/playwright
Provides a method to inject and analyze web pages using axe
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@browserbasehq/stagehand
An AI web browsing framework focused on simplicity and extensibility.
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@cucumber/cucumber
The official JavaScript implementation of Cucumber.
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expect-type
[](https://github.com/mmkal/expect-type/actions/workflows/ci.yml)  [](ht
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fast-check
Property based testing framework for JavaScript (like QuickCheck)
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jasmine-core
Simple JavaScript testing framework for browsers and node.js
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jest-preset-angular
Jest preset configuration for Angular projects
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mailosaur
The Mailosaur Node library lets you integrate email and SMS testing into your continuous integration process.
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mocha
simple, flexible, fun test framework
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mockserver-client
A node client for the MockServer
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msw
Seamless REST/GraphQL API mocking library for browser and Node.js.
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@mswjs/interceptors
Low-level HTTP/HTTPS/XHR/fetch request interception library.
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nightwatch
Easy to use Node.js based end-to-end testing solution for web applications using the W3C WebDriver API.
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nise
Fake XHR and server
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obsidian-integration-testing
Simplifies integration testing of Obsidian plugins.
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obsidian-test-mocks
Comprehensive test mocks for the Obsidian API.
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@prisma/dev
A local Prisma Postgres server for development and testing
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@rickcedwhat/playwright-smart-table
Smart, column-aware table interactions for Playwright
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selenium-webdriver
The official WebDriver JavaScript bindings from the Selenium project
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sinon
JavaScript test spies, stubs and mocks.
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stably
AI-powered E2E Playwright testing CLI. Stably can understand your codebase, edit/run tests, and handle complex test scenarios for you.
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@storybook/addon-vitest
Storybook Vitest addon: Blazing fast component testing using stories
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@temporalio/testing
Temporal.io SDK Testing sub-package
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testcafe
Automated browser testing for the modern web development stack.
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@testcontainers/postgresql
PostgreSQL module for Testcontainers
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@testing-library/cypress
Simple and complete custom Cypress commands and utilities that encourage good testing practices.
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@testing-library/svelte
Simple and complete Svelte testing utilities that encourage good testing practices.
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ts-jest
A Jest transformer with source map support that lets you use Jest to test projects written in TypeScript
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@usebruno/cli
With Bruno CLI, you can now run your API collections with ease using simple command line commands.
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@vitest/browser-playwright
Browser running for Vitest using playwright
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termless
Like Playwright, but for terminal apps — headless testing across xterm.js, Ghostty, Alacritty, WezTerm, and more
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cli-assured
Java DSL for testing command line applications
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DamageBDD
Behaviour Verification at Planetary Scale
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LogHarbor
🚢 Streamline your logging with LogHarbor, a fast log aggregation service in Go that offers simple RESTful APIs for efficient log management.
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Vitest
Fast unit-test framework powered by Vite for JavaScript and TypeScript projects.
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appium-tizen-driver
Tizen support for Appium
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aws-sdk-client-mock
Easy and powerful mocking of AWS SDK v3 Clients
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browserstack
A client for working with the BrowserStack APIs.
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chai
BDD/TDD assertion library for node.js and the browser. Test framework agnostic.
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chai-as-promised
Extends Chai with assertions about promises.
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constitute
Minimalistic Dependency Injection (DI) for ES6
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cypress-mailosaur
Extends Cypress' cy commands that let you integrate email and SMS testing into your continuous integration process.
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@cypress/schematic
Official Cypress schematic for the Angular CLI
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deep-eql
Improved deep equality testing for Node.js and the browser.
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enzyme-shallow-equal
Adaptation of react-addons-shallow-compare, for independent usage
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eslint-plugin-testing-library
ESLint plugin to follow best practices and anticipate common mistakes when writing tests with Testing Library
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jest-extended
Additional Jest matchers
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jest-preview
Preview your Jest tests in a browser
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karma
Spectacular Test Runner for JavaScript.
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@knapsack-pro/core
Knapsack Pro Core library splits tests across CI nodes and makes sure that tests will run in optimal time on each CI node. This library gives core features like communication with KnapsackPro.com API. This library is a dependency for other projects specif