Best Headless Browsers for JSON

Without the need to use a proxy, you can access valuable data in HTML format from any website. HasData (formerly Scrape-It.Cloud) is the solution to your frustrations with proxy servers, headless browsers and captchas. We'll send you the URL you want and return an HTML response. You can work without worrying about blocking and headaches. Chrome browser is used in headless mode to display your website exactly the same way it would in a browser. The web scraping API doesn't require additional headers. You should be able to focus on the code and we will take care of data aggregation. Javascript has an impact on what the user sees on the site. Javascript can be output with a simple parameter. This parameter can be used to scrape any website, including single-page applications that use React, AngularJS or Ajax or other libraries. A large proxy pool allows you to bypass site speed limits, hide scrapers, and reduce the risk of being blocked. We offer residential and data center proxies. We'll take care of the rest.

PhantomJS is a scriptable headless web browser that operates on multiple operating systems, including Windows, macOS, Linux, and FreeBSD, and is powered by QtWebKit as its back-end. It provides robust and rapid support for a wide array of web standards such as DOM manipulation, CSS selectors, JSON processing, Canvas, and SVG rendering. Because of these features, it serves as an excellent tool for a variety of applications including page automation, screen capturing, testing websites without a graphical interface, and monitoring network activity. For instance, users can easily write a straightforward script that loads a webpage and saves it as an image file for later reference. Additionally, its versatility allows developers to incorporate it into larger testing frameworks or automation processes seamlessly.

Jaunt is a Java library tailored for web scraping, web automation, and querying JSON data. It features a lightweight, fast headless browser that allows Java applications to execute web scraping, manage forms, and interact with RESTful APIs. This library can parse various formats such as HTML, XHTML, XML, and JSON, while also providing functionalities like manipulation of HTTP headers and cookies, support for proxies, and options for customizable caching. Although Jaunt does not execute JavaScript, users looking to automate JavaScript-capable browsers are encouraged to use Jauntium. Distributed under the Apache License, Jaunt has a monthly version that requires periodic updates, compelling users to download the latest release once it expires. It is particularly effective for tasks that involve extracting and parsing data from web pages, submitting filled forms, and managing HTTP requests and responses. Additionally, users can find extensive tutorials and documentation to help them efficiently navigate and utilize the features of Jaunt, making it an accessible choice for developers.