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hoppscotch/hoppscotch

An open-source, lightweight, and versatile API development ecosystem for testing and interacting with various API types, available across web, desktop, and CLI.

Core Features

Comprehensive support for HTTP methods, WebSockets, Server-Sent Events, Socket.IO, and MQTT.

Integrated GraphQL client with schema introspection and query capabilities.

Flexible authorization options including OAuth 2.0 and OIDC, along with custom headers and parameters.

Progressive Web App (PWA) with offline support, low resource usage, and desktop installation.

Customizable theming and real-time request/response handling.

Detailed Introduction

Hoppscotch is a robust open-source API development ecosystem designed to streamline the process of building, testing, and interacting with APIs. It offers a comprehensive suite of tools for various API types, including REST, GraphQL, WebSockets, and more. Available as a web application, desktop client, and CLI tool, Hoppscotch provides flexibility for developers working in diverse environments. Its lightweight design, real-time capabilities, and extensive feature set make it a powerful, privacy-focused alternative to commercial API clients like Postman and Insomnia, supporting offline, on-premise, and cloud deployments.