Insomnia Core is a powerful open-source REST client designed for developers who need to test and debug APIs. It provides a comprehensive suite of tools for working with HTTP requests, including support for REST, GraphQL, and WebSocket protocols. The software is built for efficiency, offering a user-friendly interface that streamlines the process of creating, testing, and modifying API requests.

With Insomnia Core, users can easily manage collections of API requests, organize them into workspaces, and share them with team members. The tool also supports environment variables, which allow developers to define different settings for various environments (e.g., development, production). It integrates with various authentication methods, including OAuth 2.0, JWT, and basic authentication, making it flexible and adaptable for different API security requirements.

Insomnia Core also features advanced functionalities like request chaining, where the output of one request can be used as input for another, and customizable response view options, enabling users to better analyze data. It supports plugins, allowing for extended functionality based on the user's needs.

This open-source tool has become a favorite among developers for its ease of use, robust feature set, and active community support.

Key Features:

• API Request Management: Allows users to design, test, and debug REST, GraphQL, and gRPC APIs.
• Environment Variables: Supports environment management with variables for different setups (e.g., production, development).
• Authentication Support: Integrates various authentication methods like OAuth, Basic Auth, and API Keys for secure API testing.
• GraphQL Support: Provides built-in features for testing and querying GraphQL APIs, including query auto-completion and syntax highlighting.
• Response Visualization: Offers various ways to visualize API responses, such as JSON formatting, HTML, and more.
• Plugins & Extensibility: Supports a rich plugin ecosystem for extending functionality, including custom scripts and integrations.
• Code Generation: Automatically generates code snippets for various programming languages based on the API request made.
• Team Collaboration: Allows easy sharing of requests, environments, and collections within teams.
• Request History: Keeps a history of past requests, making it easy to refer back to previously tested endpoints.