JavaScript API for Chrome and Firefox
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Open-Source API Development Ecosystem • https://hoppscotch.io • Offline, On-Prem & Cloud • Web, Desktop & CLI • Open-Source Alternative to Postman, Insomnia
Opensource IDE For Exploring and Testing API's (lightweight alternative to Postman/Insomnia)
The elegant testing framework for PHP developers and AI agents.
Test Automation Made Simple
Testcontainers for Go is a Go package that makes it simple to create and clean up container-based dependencies for automated integration/smoke tests. The clean, easy-to-use API enables developers to programmatically define containers that should be run as part of a test and clean up those resources when the test is done.
The interactive web server
AutoFixture is an open source library for .NET designed to minimize the 'Arrange' phase of your unit tests in order to maximize maintainability. Its primary goal is to allow developers to focus on what is being tested rather than how to setup the test scenario, by making it easier to create object graphs containing test data.
Lightweight service virtualization/ API simulation / API mocking tool for developers and testers
Self-hosted iOS & Android simulator streaming for the whole team
Faker is a pure Elixir library for generating fake data.
Fast, native API client for REST, gRPC, WebSocket and GraphQL. A local-first Postman alternative written in Go: no Electron, no account, no cloud.
Keyscope is a key and secret workflow (validation, invalidation, etc.) tool built in Rust
go-test-coverage is a tool designed to report issues when test coverage falls below a specified threshold
A powerful testing framework for ZSH projects
SMTP mock server written on Golang. Mimic any 📤 SMTP server behavior for your test environment with fake SMTP server.
High-performance, multi-protocol mock server. HTTP, WebSocket, gRPC, MQTT, SSE, GraphQL, SOAP in one binary.
DNS mock server written on 💎 Ruby. Mimic any DNS records for your test environment with fake DNS server.
Catch silent failures in agent workflows by verifying real system state