Stack Trace Formatter & Analyzer

Parse, prettify, and analyze raw stack traces from Node.js, Python, Java, or .NET applications to instantly pinpoint root exception frames.

Raw Stack Trace:

Error: NullReferenceException: Object reference not set to an instance of an object.
    at UserService.GetUserDetails(Int32 userId) in C:\Projects\DevDocs\Services\UserService.cs:line 42
    at AuthController.Login(LoginRequest req) in C:\Projects\DevDocs\Controllers\AuthController.cs:line 28
    at Microsoft.AspNetCore.Mvc.Infrastructure.ActionMethodExecutor.TaskOfIActionResultExecutor.Execute(IActionResultTypeMapper mapper, ObjectMethodExecutor executor, Object controller, Object[] arguments)
    at Microsoft.AspNetCore.Mvc.Infrastructure.ControllerActionInvoker.<InvokeActionMethodAsync>g__Awaited|12_0(ControllerActionInvoker invoker, ValueTask`1 actionResultValueTask)

Formatted & Highlighted Frames: Parsed

How to Use the Formatter

Paste any multi-line exception stack trace into the input box on the left. The formatter automatically groups exception headers and highlights application-level frames while subduing framework internals for rapid debugging.

Frequently Asked Questions (FAQ)

The analyzer supports stack traces from .NET (C#), Node.js (JavaScript/TypeScript), Python, and Java frameworks by identifying standard method call formats and file path indicators.

Yes. All parsing and formatting occur locally within your browser; your logs and error traces are never transmitted to external servers.

Stack Trace Formatter & Analyzer

How to Use the Formatter

Frequently Asked Questions (FAQ)

Which programming languages and runtimes are supported?

Is my sensitive stack trace data secure?