Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia
-
Updated
Jan 10, 2026 - TypeScript
Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia
Free and open-source API Client & Interceptor.
A payment application to demonstrate real-world usage of Cypress testing methods, patterns, and workflows.
Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.
Automated API Testing and Quality Assurance
🔥 GUI client for gRPC/gRPC-Web
Port OpenAPI Specs to Postman Collections, inject test suite and run via Newman 👨🏽🚀
A next generation, full-stack acceptance testing framework optimised for collaboration, speed and scale!
A text-based HTTP client in the browser. An interface-less Postman.
Visual Studio Code extension to create and test simple and complex HTTP/s requests
Node.js SDK for capturing and replaying API calls made to/from your service
Mockbin by Zuplo. Mock, Test, and View HTTP Requests and Responses
This is a sample Automation project using Playwright and Typescript
Apitest is declarative api testing tool with JSON-like DSL.
A CLI tool to convert an OpenAPI schema to a TypeScript client to use with k6.
Tusk Drift Demo - Node.js Service
UI for Keploy platform that does API testing by dependency mocking without writing any test cases.
Observable Integration Testing using OpenTelemetry on top of Jest/Playwright/Cypress.
Yasumu is a modern, free and open-source API laboratory for designing and testing API workflows
VSCode Extension for Karate
Add a description, image, and links to the api-testing topic page so that developers can more easily learn about it.
To associate your repository with the api-testing topic, visit your repo's landing page and select "manage topics."