Online Web Scraper

Web Scraper is a free and easy-to-use tool that can navigate a website and extract data you need. We made web scraping quick and effective. Data extraction runs in your browser and does not require installing anything on your computer. Start data scraping now!

  • Enter a site URL to scrape data.
  • Choose a data selector from the drop-down menu - CSS Query or XPath.
  • Enter an expression, for example img for CSS Query or //img for XPath. In this case, the Web Scrater selects all <img> elements no matter where they are in the document. We covered in detail how to use XPath expressions in the How to use XPath documentation article.
  • Push the Find button, get the result and copy it to the clipboard.

Steps to Extract Data using C#

  1. Use the HTMLDocument() constructor to initialaze an HTML document from a URL.
  2. Use the QuerySelectorAll(selector) method that returns a list of all elements in the document, which match the selector.
  3. Iterate through the list of elements and print the content of the element.
  4. Copy C# code for the web scraper and use it in your project.

Note: Using the Web Scraper require you to accept our Terms of Service and Privacy Policy. Web scraping becomes illegal when non-publicly available data is extracted.


Web Scraping in Documentation

Web Scraping section describes how to inspect, capture and extract data from the web pages automatically using Aspose.HTML for .NET. In the How-to Articles chapter you find answers to popular questions about web scraping. In addition, the articles contain C# examples that provide the necessary information about using the Aspose.HTML class library to solve specific tasks.

  • HTML Navigation - In this article, you learn how to perform a detailed inspection of the HTML document and its elements using the API, about custom filters usage for iterating over the document elements, and how to navigate over the document by using CSS Selector or XPath.
  • How to use CSS Selector - QuerySelector() and QuerySelectorAll() - In this article, discover how to effectively apply selectors to select the elements.
  • How to use XPath Query in HTML - Evaluate() method - This article introduces how to navigate through an HTML document and select nodes by various criteria. You will learn with C# examples, how to select all Nodes with specified Name using XPath query.
  • How To Use XPath To Select XML Nodes - You will learn how to navigate through an XML document and select nodes using XPath. The article considers a С# example of selecting the required information from an XML file using XPath queries.

FAQ

1. Why is this Web Scraper useful?

This extraction tool is great for people who want to extract data from the Web. Web Scraper uses data selectors that tell the scraper how to traverse the target site and what data to extract. No registration, plugin or software installation is required for you. Work from your favorite device! Moreover, you can copy and use C# code to scrape data programmatically. Our Web Scraper will be helpful for developers who want to learn more about web scraping and quickly and easily create C# code for your own application.

2. Is web scraping legal?

Web scraping is not illegal. However, some rules must be observed. Web scraping becomes illegal when data that is not publicly available is extracted. When discussing the legality of web scraping, we need to be clear about what public data is. This is data that can be accessed by anyone with an internet connection. For example, an online store, a news site, or a public LinkedIn profile.

3. How does Web Scraper work?

The web scraper takes a URL and downloads all the HTML for the page in question. The parser will then extract all the specific data selected by the user before running the tool. Finally, the web scraper will output all the collected data, and you can copy it.

3. Can I scrape data on Linux, Mac OS, Android or iOS?

You can apply a free Web Scraper on any operating system with a web browser. Use this extracting tool on a computer, tablet, or smartphone. You can scrape data quickly and easily regardless of whether you use Windows, Mac OS, Linux, Android, or iOS. Automate your tasks with our Web Scraper!

Get Started with .NET HTML API

You can use several ways to install the Aspose.HTML library for .NET on your system:

  1. Install a NuGet Package using the NuGet Package Manager GUI.
  2. Install a NuGet Package using the Package Manager Console. You may use the following command PM> Install-Package Aspose.Html.
  3. Install Aspose.HTML for .NET through MSI.

Aspose.HTML is an advanced web scraping and HTML parsing library. One can create, edit, navigate through nodes, extract data, merge and convert HTML, XHTML, MD, EPUB and MHTML files to PDF, DOCX, Images and other popular formats. Moreover, it also handles CSS, HTML Canvas, SVG, XPath and JavaScript out-of-the-box to extend manipulation tasks. It’s a standalone API and does not require any software installation. Use the Aspose.HTML C# library to convert, merge, edit HTML documents, extract data from the web, and more! For more details about C# library installation and system requirements, please refer to Aspose.HTML Documentation.

Other Supported Aspose.HTML for .NET API Features

Use the Aspose.HTML for .NET library to convert, merge, edit HTML, EPUB, MHTML, XHTML, MD documents, extract data from the web, and more!