HTTP Debugger vs NetworkSpy
HTTP Debugger
httpdebugger.com
NetworkSpy
networkspy.appSide by side
| Figure | HTTP Debugger | NetworkSpy |
|---|---|---|
| Price from | $7.42/mo | $1.50/mo |
| Free plan | — | Yes |
| Free trial | Yes | Yes |
| Open source | — | Yes |
| Windows | Yes | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 3 | 7 |
| Spec score · Web Debugging Proxies | 8.0 (#13) | 9.1 (#3) |
| Protocols | The product captures HTTP/1.1, HTTP/2, WebSocket, Server-Sent Events, and gRPC traffic. | The pricing FAQ says NetworkSpy supports gRPC, including Protobuf decoding, and WebSockets with real-time message streaming. |
| Purpose | HTTP Debugger captures, inspects, and replays HTTP/HTTPS traffic from browsers, desktop applications, and AI agents without changing proxy settings. | NetworkSpy is an application-level HTTP/HTTPS debugging tool for capturing and analyzing network traffic. |
| Request inspection | Request and response panels include viewers for headers, cookies, URL parameters, JSON and XML trees, images, highlighted bodies, hex, and request timing. | Each captured request can expose headers, raw bodies, timing information and payload validation details. |
Plans
HTTP Debugger
- Pro$129, paid once
- Maintenance renewal$89 a year
- HTTP Debugger Pro$129, paid once
NetworkSpy
- FreeFree
- Personal$18 a year
- Professional$29 a year
- Team Starter$49 a month
- Lifetime$99, paid once
- Business$149 a month
- EnterprisePriced on request
In their own words
HTTP Debugger
HTTP Debugger has no write-up on Specifiction yet; its figures are above.
NetworkSpy
NetworkSpy is an application-level HTTP/HTTPS debugging tool for capturing and analyzing network traffic. It can intercept HTTPS, inspect request metadata, compare requests side by side, and let users edit and replay captured traffic. Breakpoints can pause or change live requests, and response mocking is supported. It also handles WebSocket message streaming and gRPC with Protobuf decoding. Its LLM analyzer visualizes streaming tokens, tracks token usage, and reports latency for each chunk; custom viewers can display proprietary binary formats or other structured data. NetworkSpy runs on macOS, Linux, and Windows, and physical iOS and Android devices can be configured to route traffic through it for inspection. The privacy policy says inspected traffic stays on the user's machine and is not collected or monitored. The free plan has limits on LLM token analysis and other features. Personal costs $18 a year, Professional $29 a year, Team Starter $49 a month, and Business $149 a month. An individual license is limited to one device.