# openwpm/OpenWPM

A web privacy measurement framework

Repository: https://github.com/openwpm/OpenWPM
Canonical: https://ross.abutalabs.com/products/openwpm
Homepage: https://openwpm.readthedocs.io
Language: Python
License: NOASSERTION
License Family: other
Topics: python3, privacy, crawler, firefox
Last push: 2026-08-25T17:39:07+00:00

## Health v2 (maintenance only)
Score: 95/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 87, longevity 100
- inputs: {"age_days": 4467, "days_push": 8, "days_rel": 9, "gap_med": 53.5, "n_releases_24m": 7}
- flags: no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1417, forks 333 (observed 2026-08-28T04:04:40.041496+00:00)

## What it is
OpenWPM is a web privacy measurement framework built on Firefox with Selenium automation, designed to collect data from thousands to millions of websites. It provides instrumentation hooks for privacy research studies at scale.

## Use cases
- measure tracking cookies across millions of websites
- run large-scale web privacy audits
- collect browser fingerprinting data for research
- crawl websites to study third-party trackers
- automate Firefox for privacy measurement studies
- analyze online tracking behavior at scale

## When to choose
- you need to conduct large-scale web privacy or tracking measurement studies
- you want automated Firefox-based browsing with instrumentation hooks
- you need reproducible crawls of thousands to millions of sites

## When to avoid
- you need Windows support, which is not available
- you want a general-purpose scraper without privacy instrumentation
- you need a lightweight single-site scraping tool

## Facets
- artifact type: framework
- maturity: active
- function: web-scraping, privacy, security, developer-tools, data-science
- domain: privacy, security, web-development, crawlers
- platform: python
- tags: web-privacy-measurement, browser-automation, firefox, selenium, measurement-studies, crawler, research, linux, macos, docker

## Member repositories
- openwpm/OpenWPM (main) score 95

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:40.041496+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 2026-08-30T04:38:02.011103+00:00, confidence not recorded.
  - readme: https://github.com/openwpm/OpenWPM (fetched 2026-08-28T04:04:40.041496+00:00, sha 94d3e8f77e27)
- Data as of 2026-08-30T08:39:29.467469+00:00.