CSS Selector – Online Tool and C# code

Use CSS Selector to extract data from webpage. Make data extraction easy and accessible!

Online CSS Selector

CSS Query is a free and easy-to-use tool that can navigate an HTML document and extract data you need. We made data extraction quick and effective. CSS Query Selector runs in your browser and does not require installing anything on your computer. Start data extraction now!

Enter a site URL to extract data.
Enter an expression, for example img for CSS Query. In this case, the extraction tool selects all <img> elements no matter where they are in the document.
Push the Find button, get the result and copy it to the clipboard.

Steps to Extract Data using CSS Selectors

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

Data Extraction – Documentation

In the How-to Articles chapter you will find answers to popular questions about CSS selectors use. 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.

FAQ

1. Why is this CSS Query Selector useful?

This extraction tool is great for people who want to extract data from the Web. No registration, plugin, or software installation is required for you. Work from your favorite device! Moreover, you can copy and use C# code to extract data programmatically. This will be useful for developers who want to learn more about data extraction and quickly and easily create C# code for their own applications.

2. How does CSS Query Selector work?

The CSS Query Selector takes a URL and parses the entire HTML code for the page to extract all the specific data selected by the user. Finally, the CSS Query Selector will output all the collected data, which you can copy.

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

You can apply a free CSS Query Selector 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 CSS Query Selector!

Get Started with .NET HTML API

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

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

Aspose.HTML is an advanced 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.