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

• Scrapy - A fast high-level screen scraping and web crawling framework.
• pyspider - A powerful spider system.
• cola - A distributed crawling framework.
• Demiurge - PyQuery-based scraping micro-framework.
• feedparser - Universal feed parser.
• 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.

• 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.
• Heritrix3 - Extensible, web-scale, archival-quality web crawler project.
• SeimiCrawler - An agile, distributed crawler framework.

• 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.
• Abot - C# web crawler built for speed and flexibility.
• Hawk - Advanced Crawler and ETL tool written in C#/WPF.

• 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.

• 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++.

• 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.

• gocrawl - Polite, slim and concurrent web crawler.
• fetchbot - A simple and flexible web crawler that follows the robots.txt policies and crawl delays.

• 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.