DebugProbe.AspNetCore is a lightweight ASP.NET Core debugging tool for inspecting HTTP traffic directly inside your application.
It captures request and response data, exposes a local dashboard, and helps compare traces during API development without requiring a proxy, browser extension, or external SaaS service.
- Website: debugprobe.dev
- Documentation: debugprobe.dev/docs
- Live demo: demo.debugprobe.dev/debug
- Demo API: demo.debugprobe.dev/swagger
- NuGet: DebugProbe.AspNetCore
dotnet add package DebugProbe.AspNetCorebuilder.Services.AddDebugProbe();
app.UseDebugProbe();Start your application and open:
http://localhost:{port}/debugbuilder.Services.AddDebugProbe(options =>
{
options.MaxEntries = 10;
options.MaxBodyCaptureSizeKb = 256;
options.AllowLocalCompareTargets = true;
options.IgnorePaths =
[
"/api/auth/login",
"/api/auth/refresh"
];
});
app.UseDebugProbe();- Request inspection
- Response inspection
- Headers, query string, and body capture
- Error visibility
- Local debugging dashboard
- Trace comparison across runs or environments
- JSON formatting for captured payloads
- Configurable body capture limits
- Ignored path configuration for noisy or sensitive endpoints
- Sensitive header masking
- Outgoing
HttpClientrequest tracing
DebugProbe masks common sensitive headers automatically:
AuthorizationCookieSet-Cookie
DebugProbe is designed primarily for local development and controlled development environments.
If you use it outside local development, protect the dashboard with authentication, restrict network access, and avoid capturing sensitive endpoints or payloads.
For full setup details, screenshots, dashboard behavior, configuration options, and live examples, see the documentation:
Contributions are welcome. Please read CONTRIBUTING.md before opening an issue or pull request.
DebugProbe.AspNetCore is licensed under the Apache License 2.0.