Extensible web scraper platform. Designer features: - Easy configuration using configuration tree, drag and drop, context menus and wizards. - Extensibility: use custom actions, converters, filters, data sources, user interface plugins - HTML element filters (not just XPath!) and converters to extract any data in any format in a reliable way - Custom actions to do anything that is possible on a web site (login, search, paging, submit, solve CAPTCHA, extract data, send emails & private messages, etc...) - .Net macro support to implement custom action, filtering or conversion functionality - Multiple database support - Web-based configuration file storage - Window docking Crawler features: - Multiple crawler processes - Real time graphical crawler interface - Per-page configurable browser options - Multiple browser engine support - Built-in proxy to filter and modify web pages - HTML Tidy to fix invalid HTML DOM trees - Customizable error handling and logging - Constraints to ensure data validity - Multiple data sources and record storages - API to implement custom crawlers