Hoppscotch

Hoppscotch is an open-source API development platform used for testing, debugging, and documenting REST, GraphQL, WebSocket, and other protocol-based APIs. It provides a lightweight, browser-based interface as an alternative to heavier desktop tools, allowing developers to build and send requests without installing native software. The platform supports collections, environments, variables, and pre-request scripts, enabling teams to organize and reuse API workflows. It targets individual developers, engineering teams, and organizations that need collaborative API design, with features like team workspaces, shared collections, and real-time syncing. Hoppscotch offers both a hosted web application and self-hostable deployment options, giving users control over data privacy and infrastructure.