A collection of awesome web crawler,spider and resources in different languages.

• Scrapy - A fast high-level screen scraping and web crawling framework.
  • django-dynamic-scraper - Creating Scrapy scrapers via the Django admin interface.
  • Scrapy-Redis - Redis-based components for Scrapy.
  • scrapy-cluster - Uses Redis and Kafka to create a distributed on demand scraping cluster.
  • distribute_crawler - Uses scrapy,redis, mongodb,graphite to create a distributed spider.
• pyspider - A powerful spider system.
• cola - A distributed crawling framework.
• Demiurge - PyQuery-based scraping micro-framework.
• Scrapely - A pure-python HTML screen-scraping library.
• feedparser - Universal feed parser.
• you-get - Dumb downloader that scrapes the web.
• Grab - Site scraping framework.
• MechanicalSoup - A Python library for automating interaction with websites.
• portia - Visual scraping for Scrapy.
• crawley - Pythonic Crawling / Scraping Framework based on Non Blocking I/O operations.
• RoboBrowser - A simple, Pythonic library for browsing the web without a standalone web browser.
• MSpider - A simple ,easy spider using gevent and js render.
• brownant - A lightweight web data extracting framework.

• Apache Nutch - Highly extensible, highly scalable web crawler for production environment.
• Crawler4j - Simple and lightweight web crawler.
• JSoup - Scrapes, parses, manipulates and cleans HTML.
• websphinx - Website-Specific Processors for HTML INformation eXtraction.
• Open Search Server - A full set of search functions. Build your own indexing strategy. Parsers extract full-text data. The crawlers can index everything.
• Gecco - A easy to use lightweight web crawler
• WebCollector - Simple interfaces for crawling the Web,you can setup a multi-threaded web crawler in less than 5 minutes.
• Webmagic - A scalable crawler framework.
• Spiderman - A scalable ,extensible, multi-threaded web crawler.
  • Spiderman2 - A distributed web crawler framework,support js render.
• Heritrix3 - Extensible, web-scale, archival-quality web crawler project.
• SeimiCrawler - An agile, distributed crawler framework.
• StormCrawler - An open source collection of resources for building low-latency, scalable web crawlers on Apache Storm

• ccrawler - Built in C# 3.5 version. it contains a simple extention of web content categorizer, which can saparate between the web page depending on their content.
• SimpleCrawler - Simple spider base on mutithreading, regluar expression.
• DotnetSpider - This is a cross platfrom, ligth spider develop by C#.
• Abot - C# web crawler built for speed and flexibility.
• Hawk - Advanced Crawler and ETL tool written in C#/WPF.
• SkyScraper - An asynchronous web scraper / web crawler using async / await and Reactive Extensions.

• scraperjs - A complete and versatile web scraper.
• scrape-it - A Node.js scraper for humans.
• simplecrawler - Event driven web crawler.
• node-crawler - Node-crawler has clean,simple api.
• js-crawler - Web crawler for Node.JS, both HTTP and HTTPS are supported.
• x-ray - Web scraper with pagination and crawler support.
• node-osmosis - HTML/XML parser and web scraper for Node.js.

• Goutte - A screen scraping and web crawling library for PHP.
  • laravel-goutte - Laravel 5 Facade for Goutte.
• dom-crawler - The DomCrawler component eases DOM navigation for HTML and XML documents.
• pspider - Parallel web crawler written in PHP.
• php-spider - A configurable and extensible PHP web spider.

• open-source-search-engine - A distributed open source search engine and spider/crawler written in C/C++.

• httrack - Copy websites to your computer.

• upton - A batteries-included framework for easy web-scraping. Just add CSS(Or do more).
• wombat - Lightweight Ruby web crawler/scraper with an elegant DSL which extracts structured data from pages.
• RubyRetriever - RubyRetriever is a Web Crawler, Scraper & File Harvester.
• Spidr - Spider a site ,multiple domains, certain links or infinitely.
• Cobweb - Web crawler with very flexible crawling options, standalone or using sidekiq.
• mechanize - Automated web interaction & crawling.

• rvest - Simple web scraping for R.

• ebot - A scalable, distribuited and highly configurable web cawler.

• web-scraper - Web Scraping Toolkit using HTML and CSS Selectors or XPath expressions.

• pholcus - A distributed, high concurrency and powerful web crawler.
• gocrawl - Polite, slim and concurrent web crawler.
• fetchbot - A simple and flexible web crawler that follows the robots.txt policies and crawl delays.
• go_spider - An awesome Go concurrent Crawler(spider) framework.
• dht - BitTorrent DHT Protocol && DHT Spider.
• ants-go - A open source, distributed, restful crawler engine in golang.
• scrape - A simple, higher level interface for Go web scraping.

• crawler - Scala DSL for web crawling.
• scrala - Scala crawler(spider) framework, inspired by scrapy.
• ferrit - Ferrit is a web crawler service written in Scala using Akka, Spray and Cassandra.