Open source web crawler for Java
Distributed proxy IP pool for web crawlers using Scrapy and Redis
Asyncio-based Python framework for building fast web crawling spiders
Convert websites into structured APIs automatically with Python tool
Lightweight Java web crawler framework with jQuery-style extraction
Perl Web Scraping Project
PHP multiprocess web crawling framework with distributed support
Android app for saving webpages for offline reading
news headline collecting for analysis in determining the category
Finds all the security information for a given domain name
anonymous tools [uncontinued]
An extensible web spider (crawler) for Joomla!
Open source Search Engine and Enterprise Search
Compile your mobile web pages into mobile aps via build.phonegap.com
A web crawler oriented to information security.