Stack Trace Beautifier

Parse and format stack traces from JavaScript, Python, Java, and Go. Extract file paths and line numbers.

Hide node_modules / vendor frames

Paste Stack Trace

Beautified (0 frames)

Supported Formats:

• JavaScript/Node.js (V8 format)
• Firefox/Safari stack traces
• Python tracebacks
• Java stack traces
• Go panic stack traces

Stack Traces - Technical Details

Stack traces show the call stack at the point where an error occurred. Each frame includes the function name, file path, and line number. Different languages have different formats: JavaScript uses 'at', Python uses 'File', Java uses 'at package.Class.method'.

Command-line Alternative

// JavaScript stack trace\nError: Something went wrong\n    at doSomething (app.js:10:5)\n    at main (app.js:20:3)