Stack Trace Beautifier

Paste a stack trace from any major language; get a clean, indented, easy-to-read version. Auto-detects JavaScript, Python, Java, Ruby, Go, and Rust traces. Strips common noise (timestamps, log prefixes, ANSI color codes).

How to use the Stack Trace Beautifier

Paste a stack trace. The tool detects the language by trace shape and produces a cleaner version. Filtering options de-emphasize lines from node_modules / site-packages / vendor — these are rarely where your bug is, but they fill up traces.