Network Spy

Network Spy is a cross-platform network proxy and traffic analyzer built with Tauri, Rust, and React. It helps developers intercept, inspect, decrypt, and debug HTTP(S) traffic through a fast and modern desktop interface.

What makes Network Spy different is its first-class Custom Viewer system. Developers can inspect payloads in ways that match their workflow instead of digging through massive raw JSON responses.

For example:

authentication payloads require different inspection workflows than mutation or analytics payloads large API responses often contain only a few important fields GraphQL implementations vary significantly between companies proprietary payload formats can be difficult to inspect using traditional proxy tools

With Custom Viewers, teams can build tailored visualizations and debugging interfaces for their own APIs, GraphQL structures, authentication flows, or internal protocols. This helps developers focus on the data that matters and can save hours of debugging time.

Network Spy is especially useful for:

REST APIs GraphQL debugging large JSON payload inspection mobile and web backend debugging proprietary or company-specific API formats developer teams that need workflow-specific traffic inspection