# elixir-crawly/crawly

Crawly, a high-level web crawling & scraping framework for Elixir.

Repository: https://github.com/elixir-crawly/crawly
Canonical: https://ross.abutalabs.com/products/crawly
Homepage: https://hexdocs.pm/crawly
Language: Elixir
License: Apache-2.0
License Family: permissive
Topics: elixir, erlang, scraper, scraping, scraping-websites, extract-data, spider, crawler, crawling
Last push: 2025-07-16T13:44:19+00:00

## Health v2 (maintenance only)
Score: 37/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 32, release rhythm 8, longevity 100
- inputs: {"age_days": 2734, "days_push": 413, "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 1114, forks 123 (observed 2026-08-28T04:03:38.147888+00:00)

## What it is
Crawly is a high-level web crawling and scraping framework for Elixir, modeled after Scrapy, where developers define spiders that fetch pages and extract structured data. It ships with built-in support for concurrent requests, retries, request throttling, automatic link following, and pluggable item-processing pipelines.

## Use cases
- scrape product prices and titles from e-commerce sites
- crawl a website and extract structured data into a database
- build a scalable web crawler in Elixir
- follow pagination links automatically while collecting items
- collect news articles or listings for data mining
- archive website content periodically
- extract data from HTML pages for downstream ETL pipelines

## When to choose
- You are building a medium-to-large scale crawler in Elixir and want BEAM concurrency for parallel fetches
- You want a Scrapy-like workflow with spiders, item pipelines, and configurable middleware
- You need out-of-the-box features like retries, rate limiting, robots.txt handling, and automatic URL deduplication
- You want structured data extraction integrated with parsers like Floki

## When to avoid
- You only need a one-off simple HTTP fetch, where a plain HTTP client like Req or HTTPoison is simpler
- You need to scrape heavily JavaScript-rendered pages without setting up browser rendering yourself
- Your project is not on the Elixir/Erlang platform
- You need a turnkey scraping service rather than a framework you write spider code in

## Facets
- artifact type: framework
- maturity: active
- function: web-scraping, http-client, parser, etl
- domain: crawlers, web-development, data-science
- platform: elixir, windows, bsd, cross-platform
- tags: crawler, spider, data-extraction, html-parsing, scrapy-inspired, erlang, beam-concurrency, data-engineering, linux, macos

## Member repositories
- elixir-crawly/crawly (main) score 37

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:38.147888+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 2026-08-30T06:42:30.576814+00:00, confidence not recorded.
  - readme: https://github.com/elixir-crawly/crawly (fetched 2026-08-28T04:03:38.147888+00:00, sha 4add3e649426)
  - homepage: https://hexdocs.pm/crawly (fetched 2026-08-29T12:46:06.236974+00:00, sha 84fd8c9cc750)
- Data as of 2026-08-30T08:39:29.467469+00:00.