PhantomJS

Gaffa is a REST API for browser automation that enables developers to control real, full browsers at scale with a single API call, eliminating the need to manage headless-browser frameworks, proxies, scaling, or infrastructure. It handles JavaScript rendering by default, ensuring that pages load exactly as they would for a real user, and supports a variety of automation tasks: scraping websites, taking screenshots, exporting pages to PDF, converting pages into clean, LLM-ready Markdown, infinite-scroll scraping of dynamic sites, form filling, capturing full-page screenshots, and archiving pages in offline form. Gaffa includes a rotating residential proxy network to ensure reliable access from different geographies, automatic CAPTCHA handling (where needed), and a credit-based usage model where you pay for actual browser execution time and bandwidth, simplifying scaling and cost control.

Jaunt is a Java library designed for web scraping, web automation, and JSON querying. It provides a fast, ultra-light headless browser that enables Java programs to perform tasks such as web scraping, form handling, and interfacing with REST APIs. Jaunt supports parsing of HTML, XHTML, XML, and JSON, and offers features like HTTP header and cookie manipulation, proxy support, and customizable caching. The library does not support JavaScript execution; however, for automating JavaScript-enabled browsers, Jauntium is recommended. Jaunt is available under the Apache License, with a monthly edition that expires periodically, requiring users to download the latest version upon expiration. The library is suitable for tasks such as parsing and extracting data from web pages, filling out and submitting forms, and handling HTTP requests and responses. Comprehensive tutorials and documentation are available to assist users in getting started with Jaunt.