RegExr is a HTML/JS based tool for creating, testing, and learning about Regular Expressions.
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Record, Replay, and Stub HTTP Interactions.
A Node.js tool to automate end-to-end web testing.
Next-gen browser and mobile automation test framework for Node.js
Test spies, stubs and mocks for JavaScript.
- stubs
- javascript
- tdd
- test-driven-development
The complete load testing platform. Everything you need for production-grade load tests. Serverless & distributed. Load test with Playwright. Load test HTTP APIs, GraphQL, WebSocket, and more. Use any Node.js module.
Sandbox for developing and testing UI components in isolation
Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.
BDD / TDD assertion framework for node.js and the browser that can be paired with any testing framework.
- javascript
- assertions
- chai
- tdd
A boilerplate for building production-ready RESTful APIs using Node.js, Express, and Mongoose
💼 An enterprise-grade Next.js boilerplate for high-performance, maintainable apps. Packed with features like Tailwind CSS, TypeScript, ESLint, Prettier, testing tools, and more to accelerate your development.
Catch CSS curve balls.
- javascript
- screen-capture
- chrome-headless
- backstopjs
Automate running Lighthouse for every commit, viewing the changes, and preventing regressions
- lighthouse
- webperf
Calculate the real cost to run your JS app or lib to keep good performance. Show error in pull request if the cost exceeds the limit.
Modern Load Testing as Code
- netty
- scala
- loadtesting
- automation
Scriptable database and system performance benchmark
Chance - Random generator helper for JavaScript
- chance
- javascript
- random
Test suites for Web platform specs — including WHATWG, W3C, and others
- testing
- html
- test-automation
- browser
tap-producing test harness for node and browsers
the Istanbul command line interface
- code-coverage
- javascript
- istanbul
:wrench: Utility library for GraphQL to build, stitch and mock GraphQL schemas in the SDL-first approach
- graphql-schema
- schema-language
- graphql
- graphql-api
Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.
- oas
- prism
- mocking
- api-testing
MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.
- mock-server
- proxy
- java-client
- javascript-client
A next-generation code testing stack for JavaScript.
- intern
- typescript
- javascript
- testing