# nvdv/vprof

Visual profiler for Python

Repository: https://github.com/nvdv/vprof
Canonical: https://ross.abutalabs.com/products/vprof
Language: Python
License: BSD-2-Clause
License Family: permissive
Topics: python, visualization, profiler, developer-tools, d3, javascript, cpu-flame-graph, stats
Last push: 2022-07-15T07:43:03+00:00

## Health v2 (maintenance only)
Score: 23/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 0, release rhythm 8, longevity 100
- inputs: {"age_days": 4083, "days_push": 1510, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 3977, forks 151 (observed 2026-08-28T04:08:30.954101+00:00)

## What it is
vprof is a Python package providing rich and interactive visualizations for Python program characteristics such as running time and memory usage. It runs as a CLI tool and renders CPU flame graphs, profiler stats, memory graphs, and code heatmaps in the browser using D3.

## Use cases
- profile cpu usage of a python script with a flame graph
- visualize memory usage of python code line by line
- generate a code heatmap showing execution counts and run times
- profile a single python function remotely and view results in the browser
- save profiling results to a  file and render them later

## When to choose
- you want interactive, visual profiling output instead of text-based profiler reports
- you need to inspect both CPU and memory characteristics of Python programs
- you want to profile individual functions via a remote server mode

## When to avoid
- you need CPU flame graphs on Windows, which are not supported
- you need a profiler under very active development with frequent updates
- you need profiling for non-Python languages

## Facets
- artifact type: cli-tool
- maturity: maintenance
- function: benchmarking, data-visualization, developer-tools
- domain: developer-tools, performance
- platform: python, cli
- tags: profiler, flame-graph, memory-profiling, heatmap, d3, command-line, linux, macos

## Member repositories
- nvdv/vprof (main) score 23

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:08:30.954101+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-29T18:24:18.846123+00:00, confidence not recorded.
  - readme: https://github.com/nvdv/vprof (fetched 2026-08-28T04:08:30.954101+00:00, sha 006a4b07e0c6)
  - registry_pypi: https://pypi.org/pypi/vprof/json (fetched 2026-08-29T09:17:36.910233+00:00, sha b437ec6a20ed)
- Data as of 2026-08-30T08:39:29.467469+00:00.