Flamegraph Python Packages

viztracer

A debugging and profiling tool that can trace and visualize python code execution

prompt-flamegraph

Lightweight, zero-dependency Python package to profile LLM prompt tokens with interactive flamegraphs, waste detection, prompt diffs and HTML/SVG/Markdown/terminal exports.

perflens

Real-time Linux perf profiling in your browser. A tiny static C agent streams perf data from any ARM or x86 Linux device, big-endian included, and a Python server renders live flame graphs, function tables and line-level annotated source. Session replay, perf.data import, and an MCP server for AI agents.

flameshow

A terminal Flamegraph viewer.

callsight

Exact per-call timing for the C/C++ code you choose — compile-time entry/exit tracing from one config file, zero source edits.

codesnap

A debugging and profiling tool that can trace and visualize python code execution

pylaprof

A Python sampling profiler for AWS Lambda functions (and not only).

flametrace

Build flamegraph charts for process trees, based on strace

pysample-profiler

Sampling profiler for Python programs

pybenchkit

A declarative framework for composable performance evaluation of system software.

yapflame

Multi-threaded flame graphs for the Yappi profiler.

metaflow-profiler

Profile any Metaflow step — interactive flamegraph card in the UI with one decorator

difflame

Visualise differences using flamegraphs