GoVisual is a zero-config HTTP request visualizer and debugger for Go. Wrap your handler in one line and you get live inspection of requests, responses, headers, and timings, without external tooling, agents, or configuration files. It exists because of a pattern in my client work: I am regularly dropped into Go services I did not write, and the first hour is always the same archaeology, figuring out what is actually flowing through the system.

Zero-config is the entire philosophy. A debugging tool you have to configure is a debugging tool you will not use when production is on fire. It is my most popular open source project, with 685 stars on GitHub, and part of a family of developer tools I maintain: FastAPI Radar, K9Sight, and LLMDog. All born from real problems in real work, then released for everyone.