Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.
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A library that allows you to easily mock out tests based on AWS infrastructure.
Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.
Record your test suite's HTTP interactions and replay them during future test runs for fast, deterministic, accurate tests.
A client-side server to build, test and share your JavaScript app
Ministack: Free, open-source local AWS emulator - 60+ services, Terraform compatible, real databases. Free forever. MIT licensed.
Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.
- oas
- prism
- mocking
- api-testing
Stub your network requests easily! Test your apps with fake network data and custom response time, response code and headers!
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
Let your Python tests travel through time
A modern, fast and flexible .NET testing framework
HTTP Toolkit is a beautiful & open-source tool for debugging, testing and building with HTTP(S) on Windows, Linux & Mac :tada: Open an issue here to give feedback or ask for help.
- feedback
- developer-tools
- http
Pure Go Redis server for Go unittests
- redis
- go
- unittest
Automatically mock your HTTP interactions to simplify and speed up testing
DummyJSON.com provides different types of REST Endpoints filled with JSON data which you can use in developing the frontend with your favorite framework and library without worrying about writing a backend.
- json
- json-api
- json-server
- javascript
Manage & spin up mongodb server binaries with zero(or slight) configuration for tests.
🔮 Proxies nodejs require in order to allow overriding dependencies during testing.
🎲 Mock or extend your GraphQL API with faked data. No coding required.
An in memory postgres DB instance for your unit tests
- hacktoberfest
- pg-promise
- typeorm
- node-postgres
The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation incubating project 🚀
Generate custom HTTP responses, the simpler way to test your Web Services
- scala
- mocky
- javascript
- mock
Insomnia Mockbin is the underlying backend for the API mocks capability of Insomnia. It is built and used by Kong, the author of the open-source Kong Gateway.
- apis
- mocking
- api-management
- api-testing
WireMock.Net is a flexible product for stubbing and mocking web HTTP responses using advanced request matching and response templating. Based on WireMock Java, but extended and different functionality. Full documentation can be found at https://wiremock.org/dotnet/.
- wiremock
- mock-server
- http-listener
- tdd
Record and replay your HTTP interactions for fast, deterministic and accurate tests
- go
- golang
- testing