FICHA · AUR

python-viztracer

VizTracer is a low-overhead logging/debugging/profiling tool that can trace and visualize your python code execution.

  • profiling tool
  • CLI
  • Web
  • Dev
  • Launchable
  • Runs in terminal
official+codex · reviewed · Jun 3, 2026 description in en

Description

Profiling sessions can trace Python programs and visualize timing behavior with low overhead. This command-line tool helps developers find slow paths, debug execution flow, and inspect trace output in a browser view.

It runs target code under tracing and writes profiling data. Be careful when profiling programs that handle secrets, because traces and logs can capture function names, file paths, arguments, or timing details.

How to run

viztracer

Commands: viztracer

Permissions

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