api-testing-tool

Terminal API client for HTTP, GraphQL, gRPC, WebSocket and SSE. Plain .http files you can diff and version, with scripted tests, workflows, mocks, recorder, and a CLI runner.

AI 驱动的可视化 API 测试编排平台 | 自然语言秒变测试流程 | 可视化拖拽编排 | 零代码测试自动化 | 智能 API 采集 + AI 生成测试用例/AI-Powered Visual API Test Orchestration - Transform natural language into test flows | Drag & drop | Zero-code | Smart capture

Swagger/OpenAPI/WSDL/SOAP 接口 Fuzz 工具， —— 面向 API 安全测试的轻量化命令行工具。

TUI API testing tool.

Layang is a gRPC-first, workspace-based API workbench for testing, mocking, benchmarking, documenting, and automating API workflows across gRPC, gRPC-Web, WebSocket, and REST.

A developer and git friendly offline-only API client designed for efficient API testing and development. It stores the collections and requests as YAML files on your local file system, making it convenient to organize, reuse, and share your APIs. (Alternative to Postman and Insomnia)

Retreever is a lightweight, developer-first toolkit that automatically discovers your Spring Boot APIs and generates a clean, test-ready documentation model — zero configuration required.

terminal based api stress testing with random data + templates

API Testing & Pentesting Inside Chrome DevTools.

The Zero-Config API Integration Testing Suite for Node.js

IntelliJ HTTP Client Demo

Maven plugin and Spring Boot Test autoconfiguration for IntelliJ HTTP Client

A simple command line tool to test api http request

Highly adoptable api test Framework for large and complex projects, that need a dependency-conscious, secure and fast testing solution.

Workflow-aware API testing tool that models your API as a graph of resources, actors, and dependencies — and auto-resolves the full request chain.Postman is an HTTP client; Reqloom is an API workflow engine.

INSPECTO — a Postman-style API testing toolkit with a Flutter frontend and Node/Express backend. Features a request builder, pretty-printed response viewer, MongoDB-backed collections & environments, and a pure-black neon "cyber" UI.

Browser-based Burp-like toolbox for manual HTTP request crafting, local history, replay, and diff. Static UI deployed via GitLab Pages.

Pingstream is a lightweight, Streamlit-based API testing tool using curl under the hood. Designed for low-RAM systems, it supports GET, POST, PUT, DELETE with JSON, headers, file uploads, and Postman/OpenAPI import.

a YAML-based HTTP API test runner built for readable, composable test suites.

Postman-like API client for any Swagger UI page. Tabs, environments, saved JWT tokens and cookies, command palette, code snippets and dark mode. Works with FastAPI, NestJS, Spring Boot, ASP.NET Core and Express. No import, no setup.