# webrecorder/pywb

Core Python Web Archiving Toolkit for replay and recording of web archives

Repository: https://github.com/webrecorder/pywb
Canonical: https://ross.abutalabs.com/products/pywb
Homepage: https://pypi.python.org/pypi/pywb
Language: JavaScript
License: GPL-3.0
License Family: copyleft
Topics: python, wayback, pywb, web-archiving, web-archives
Last push: 2026-08-26T07:49:35+00:00

## Health v2 (maintenance only)
Score: 78/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 39, longevity 100
- inputs: {"age_days": 4650, "days_push": 7, "days_rel": 331, "gap_med": 85.5, "n_releases_24m": 3}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1695, forks 239 (observed 2026-08-28T04:05:23.806825+00:00)

## What it is
pywb is a Python 3 web archiving toolkit for replaying and recording web archives, providing Wayback Machine-style functionality. It supports multi-collection configuration, live-web recording, Memento API aggregation, HTTP/S proxy mode, and pluggable content rewriting.

## Use cases
- replay WARC web archives like the Wayback Machine
- record web pages from the live web into a WARC archive
- self-host a wayback machine for my organization
- serve archived websites with accurate rewriting of modern JavaScript
- query multiple web archive collections via the Memento API
- block or embargo access to certain archived URLs

## When to choose
- you need to replay or record WARC-format web archives at scale
- you want a self-hosted Wayback Machine with access control and localization
- you need Memento API support or proxy-mode archiving

## When to avoid
- you only need to scrape or crawl the live web without archiving/replay
- you need a simple screenshot or single-page capture tool rather than a full archive server
- you require a non-GPL license

## Facets
- artifact type: framework
- maturity: active
- function: http-server, web-framework, proxy, search-engine, middleware
- domain: web-development, self-hosted, developer-tools
- platform: python, self-hosted
- tags: web-archiving, wayback-machine, warc, replay, memento, recording, archives, linux, web-server, docker

## Member repositories
- webrecorder/pywb (main) score 78

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:23.806825+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 2026-08-30T03:37:58.118263+00:00, confidence not recorded.
  - readme: https://github.com/webrecorder/pywb (fetched 2026-08-28T04:05:23.806825+00:00, sha 5f0156ab5aef)
  - homepage: https://pypi.python.org/pypi/pywb (fetched 2026-08-29T11:13:13.031334+00:00, sha 52177021342d)
- Data as of 2026-08-30T08:39:29.467469+00:00.