Resonance is a clean and minimal API client application designed to provide an excellent user experience for testing and interacting with APIs. It offers a modern and intuitive interface for developers.

Features:

• OpenAPI/Swagger collection imports - Import OpenAPI 3.0 specifications in YAML or JSON format
• Variable templating system - Use template variables with {{ variableName }} syntax for API keys, base URLs, and more
• Multiple HTTP methods - Support for GET, POST, PUT, DELETE, and PATCH requests
• Request body schema generation - Automatically generate example request bodies from OpenAPI schemas
• Clean, organized interface - Split layout with collections sidebar and tabbed request/response sections
• Theme support - Light, dark, system, and blueprint themes with CSS custom properties
• Multi-language support - Available in English, German, Spanish, French, and Italian
• Secure architecture - Built with context isolation and secure IPC communication