Alternatives to HtmlUnit
Compare HtmlUnit alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to HtmlUnit in 2026. Compare features, ratings, user reviews, pricing, and more from HtmlUnit competitors and alternatives in order to make an informed decision for your business.
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1
jsoup
jsoup
jsoup is a Java library that simplifies working with real-world HTML and XML. It offers an easy-to-use API for URL fetching, data parsing, extraction, and manipulation using DOM API methods, CSS, and XPath selectors. jsoup implements the WHATWG HTML5 specification and parses HTML to the same DOM as modern browsers. With jsoup, you can scrape and parse HTML from a URL, file, or string; find and extract data using DOM traversal or CSS selectors; manipulate HTML elements, attributes, and text; clean user-submitted content against a safelist to prevent XSS attacks; and output tidy HTML. jsoup is designed to deal with all varieties of HTML found in the wild, from pristine and validating to invalid tag-soup, creating a sensible parse tree. For example, you can fetch the Wikipedia homepage, parse it to a DOM, and select the headlines from the "In the news" section into a list of elements. -
2
Zombie.js
Zombie.js
Zombie.js is a lightweight, headless testing framework for Node.js that enables developers to simulate browser environments for testing client-side JavaScript code without the need for a graphical browser. It allows for the automation of web interactions such as form submissions, link clicks, and navigation, facilitating full-stack testing in a simulated environment. Developers can utilize Zombie.js to perform actions like visiting web pages, filling out forms, and asserting conditions within their test suites. The framework integrates seamlessly with testing libraries like Mocha, providing a streamlined approach to writing and executing tests.Starting Price: Free -
3
jBrowserDriver
Daniel Hollingsworth
jBrowserDriver is a programmable, embeddable web browser driver compatible with the Selenium WebDriver specification. It is headless, WebKit-based, and written in pure Java. The project is open source and licensed under the Apache License v2.0. To run jBrowserDriver from a remote Selenium server, start the remote Selenium server(s) and use the appropriate code to call jBrowserDriver remotely. For building from source, install and configure Maven v3.x and run mvn clean compile install from the project root. To use in Eclipse, either import the existing Java project from the root directory or import the Maven file. For usage, jBrowserDriver can be used like any other Selenium WebDriver or RemoteWebDriver and works with Selenium Server and Selenium Grid.Starting Price: Free -
4
Jaunt
Jaunt
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. -
5
Selenium
Software Freedom Conservancy
Selenium automates browsers. That's it! What you do with that power is entirely up to you. Primarily it is for automating web applications for testing purposes, but is certainly not limited to just that. Boring web-based administration tasks can (and should) also be automated as well. If you want to create robust, browser-based regression automation suites and tests, scale and distribute scripts across many environments, then you want to use Selenium WebDriver, a collection of language specific bindings to drive a browser - the way it is meant to be driven. If you want to create quick bug reproduction scripts, create scripts to aid in automation-aided exploratory testing, then you want to use Selenium IDE; a Chrome and Firefox add-on that will do simple record-and-playback of interactions with the browser. If you want to scale by distributing and running tests on several machines and manage multiple environments from a central point. -
6
Lightpanda
Lightpanda
Lightpanda is an open source headless web browser designed specifically for AI systems and large-scale web automation workloads. Unlike traditional browsers such as Chrome or Firefox that are built primarily for human interaction and graphical rendering, Lightpanda is engineered from the ground up for machines and automated processes. It runs without a graphical interface and focuses only on the components required for programmatic web interaction, such as HTML parsing, DOM tree construction, and JavaScript execution. By eliminating visual rendering tasks like layout calculations, image loading, and pixel painting, the system dramatically reduces resource usage and improves performance for automation tasks. Lightpanda was built from scratch using the Zig programming language rather than modifying an existing browser engine, allowing it to be optimized for speed, reliability, and minimal memory consumption. -
7
trifleJS
trifleJS
TrifleJS is a headless browser designed for test automation, utilizing the .NET WebBrowser class and the V8 JavaScript engine to emulate Internet Explorer environments. Its API is modeled after PhantomJS, making it familiar to users of that framework. TrifleJS supports various versions of Internet Explorer, allowing emulation of IE7, IE8, and IE9, depending on the installed version. Developers can execute scripts via the command line, specifying the desired IE version for emulation. The platform offers an interactive mode (REPL) for debugging and testing JavaScript code.Starting Price: Free -
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Puppeteer
Puppeteer
Most things that you can do manually in the browser can be done using Puppeteer! Puppeteer-core is intended to be a lightweight version of Puppeteer for launching an existing browser installation or for connecting to a remote one. Be sure that the version of puppeteer-core you install is compatible with the browser you intend to connect to. Puppeteer will be familiar to people using other browser testing frameworks. You create an instance of Browser, open pages, and then manipulate them with Puppeteer's API. By default, Puppeteer downloads and uses a specific version of Chromium so its API is guaranteed to work out of the box. To use Puppeteer with a different version of Chrome or Chromium, pass in the executable's path when creating a Browser instance.Starting Price: Free -
9
SlimerJS
SlimerJS
SlimerJS is a free, open source scriptable browser for web developers, allowing interaction with web pages through external JavaScript scripts. It enables tasks such as opening web pages, clicking links, and modifying content, making it useful for functional tests, page automation, network monitoring, screen capture, and web scraping. Unlike PhantomJS, SlimerJS runs on top of Gecko, the browser engine of Mozilla Firefox, instead of WebKit, and can operate in both headless and non-headless modes. APIs of SlimerJS are similar to the APIs of PhantomJS but there are a few differences in their behavior. However, most of the scripts for PhantomJS run perfectly well with SlimerJS right now.Starting Price: Free -
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Selenide
Selenide
You don't need to think how to shut down browser, handle timeouts and StaleElement Exceptions or search for relevant log lines, debugging your tests. We are proud to claim that Selenide is so simple that you don't need to read tons of documentation. Selenium WebDriver is a great tool, but it’s not a tool for testing. It’s a tool for browser manipulation. There are several testing libraries around Selenium WebDriver. But it seems that they do not resolve the main problems of UI tests. Namely, instability of tests caused by dynamic content, JavaScript, Ajax, timeouts etc. Selenide was created to resolve these problems. First of all, Selenide makes your tests stable by resolving (almost) all Ajax/timing issues. We are proud to claim that Selenide is so simple that you don't need to read tons of documentation. The whole work with Selenide consists of three simple things!Starting Price: Free -
11
PhantomJS
PhantomJS
PhantomJS is a headless web browser scriptable with JavaScript, running on Windows, macOS, Linux, and FreeBSD. Utilizing QtWebKit as its back-end, it offers fast and native support for various web standards, including DOM handling, CSS selectors, JSON, Canvas, and SVG. This makes it an optimal solution for tasks such as page automation, screen capture, headless website testing, and network monitoring. For example, a simple script can load a webpage and capture it as an image.Starting Price: Free -
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Playwright
Playwright
Playwright supports all modern rendering engines including Chromium, WebKit, and Firefox. Test on Windows, Linux, and macOS, locally or on CI, headless or headed. Playwright waits for elements to be actionable prior to performing actions. It also has a rich set of introspection events. The combination of the two eliminates the need for artificial timeouts - the primary cause of flaky tests. Playwright assertions are created specifically for the dynamic web. Checks are automatically retried until the necessary conditions are met. Configure test retry strategy, capture execution trace, videos, screenshots to eliminate flakes. Browsers run web content belonging to different origins in different processes. Playwright is aligned with the modern browsers architecture and runs tests out-of-process. This makes Playwright free of the typical in-process test runner limitations.Starting Price: Free -
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HUnit
Hackage
HUnit is a unit testing framework for Haskell, inspired by the JUnit tool for Java. It's easy to use HUnit, assuming you are familiar with Haskell, though not necessarily with JUnit. A test-centered methodology for software development is most effective when tests are easy to create, change, and execute. The JUnit tool pioneered support for test-first development in Java. HUnit is an adaptation of JUnit to Haskell, a general-purpose, purely functional programming language. With HUnit, as with JUnit, you can easily create tests, name them, group them into suites, and execute them, with the framework checking the results automatically. Test specification in HUnit is even more concise and flexible than in JUnit, thanks to the nature of the Haskell language. HUnit currently includes only a text-based test controller, but the framework is designed for easy extension. Run the tests as a group.Starting Price: Free -
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JMockit
JMockit
The toolkit is provided as a set of artifacts deployed to the Maven Central repository. It requires Java 7 or newer for test execution; tests must use JUnit or TestNG. For instructions on how to add the library to a Java project, see Running tests with JMockit. In this tutorial we examine the APIs available in the library, with the help of example tests (using Java 8). The central API - a single annotation - provides support for the automatic instantiation and initialization of the objects to be tested. Then we have the mocking API (also known as the "Expectations" API), intended for tests which use mocked dependencies. Finally, there is a small faking API (aka the "Mockups" API), which can be used for the creation and application of fake implementations that avoid the full cost of external components.Starting Price: Free -
15
Roost.ai
Roost.ai
Roost.ai is an AI-powered software testing platform that leverages generative AI and large language models (LLMs) like GPT-4, Gemini, Claude, and Llama3 to automate the generation of unit and API test cases, ensuring 100% test coverage. It integrates seamlessly with existing DevOps tools such as GitHub, GitLab, Bitbucket, Azure DevOps, Terraform, and CloudFormation, enabling automated test updates in response to code changes and pull requests. Roost.ai supports multiple programming languages, including Java, Go, Python, Node.js, and C#, and can generate tests for various frameworks like JUnit, TestNG, pytest, and Go's standard testing package. It also facilitates the creation of ephemeral test environments on demand, streamlining acceptance testing and reducing the time and resources required for quality assurance. By automating repetitive testing tasks and enhancing test coverage, Roost.ai empowers development teams to focus on innovation and accelerate release cycles. -
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TestNG
TestNG
TestNG is a testing framework inspired from JUnit and NUnit but introducing some new functionalities that make it more powerful and easier to use, such as annotations, or the possibility to run your tests in arbitrarily big thread pools with various policies available (all methods in their own thread, one thread per test class, etc.). You can test that your code is multithread safe, there is flexible test configuration, support for data-driven testing (with @DataProvider), support for parameters, powerful execution model (no more TestSuite). There is a supported by a variety of tools and plug-ins (Eclipse, IDEA, Maven, etc.), it also embeds BeanShell for further flexibility, and there is default JDK functions for runtime and logging (no dependencies), and dependent methods for application server testing. TestNG is designed to cover all categories of tests, unit, functional, end-to-end, integration, etc. -
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Oorian
Corvus Engineering
Oorian is a server-side Java web framework for building interactive web applications without writing JavaScript. HTML elements are Java objects with type-safe styling, events are handled with standard Java listeners, and real-time updates flow automatically via AJAX, SSE, or WebSocket—your choice per page. Rather than reinventing UI components, Oorian wraps best-of-breed JavaScript libraries (AG Grid, Syncfusion, Chart.js, and 150+ more), so you get enterprise-grade components maintained by specialists. Battle-tested in production for over 10 years, Oorian is free for non-commercial use with commercial licensing available. -
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Ujeebu
Ujeebu
Ujeebu is a set of APIs for web scraping and content extraction at scale. Ujeebu provides a full featured API that uses proxies and headless browsers to circumvent blocks, execute JavaScript and extract data from within any web page using a simple API call. Ujeebu also features an AI powered automatic content extractor that removes boilerplate and identifies key data written in human language allowing developers to harvest the data they want online with minimal programming, or model training.Starting Price: $39.99 per month -
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Mozilla Firefox
Mozilla
Mozilla Firefox is a free, open-source web browser developed by the Mozilla Foundation, a non-profit organization dedicated to internet health and privacy. Designed to prioritize user privacy and security, Firefox offers features like Total Cookie Protection, which provides outstanding privacy by default. The browser includes tools such as Firefox View, allowing users to see tabs open on other devices and access recent history, and built-in PDF editing capabilities, enabling form edits directly within the browser. Available across various platforms, including Windows, macOS, Linux, Android, and iOS, Firefox ensures a consistent and secure browsing experience. Its commitment to user-centric development and transparency makes it a preferred choice for those seeking a trustworthy alternative to proprietary browsers.Starting Price: Free -
20
Browsera
Browsera
Browsera tests and reports cross-browser layout differences and scripting errors on your site. Browsera locates cross-browser layout problems automatically by comparing each browser's output. JavaScript errors from each browser are collected and reported after your test is complete. With the site crawling feature, it's easy to test all of the different pages on your site. Most of your sites require authentication. No sweat, Browsera can handle logging in prior to running each test. Tired of building and maintaining a physical or virtual test lab? Our service runs entirely in the cloud, so there's nothing to install. Have a bunch of AJAX and DHTML on your site? Not to worry, we wait for the page to be ready before testing it. Browsera will notify you of possible cross-browser layout problems it finds while testing your site. Instead of having to check out each screenshot on your own, you'll get a report detailing which pages have potential problems. -
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Servo
Servo
Servo’s mission is to provide an independent, modular, embeddable web engine, which allows developers to deliver content and applications using web standards. Servo is written in Rust, and shares code with Mozilla Firefox and the wider Rust ecosystem. Since its creation in 2012, Servo has contributed to W3C/WHATWG web standards by reporting specification issues and submitting new cross-browser automated tests, and core team members have co-edited new standards that have been adopted by other browsers. As a result, the Servo project helps drive the entire web platform forward while building on a platform of reusable, modular technologies that implement web standards. Pre-built nightly snapshots allow developers to try Servo and report issues without building Servo locally. Now that we’ve released our first developer preview, we’ll be investing in formal security audits and improving our security practices using both existing libraries and Rust.Starting Price: Free -
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LibreSpeed
LibreSpeed
Self-hosted Speedtest for HTML5 and more. Easy setup, examples, configurable, mobile-friendly. Supports PHP, Node, multiple servers, and more. This is a very lightweight Speedtest implemented in Javascript, using XMLHttpRequest and Web Workers. All modern browsers are supported, IE11, latest Edge, latest Chrome, latest Firefox, latest Safari. Works with mobile versions too. A reasonably fast webserver with Apache 2 (Nginx, IIS also supported). PHP 5.4 (other backends also available), MySQL database to store test results (optional, PostgreSQL and SQLite also supported), and a fast internet connection. A template to build an Android client for your LibreSpeed installation is available. A docker image is available on the Docker Hub. A partial Node.js implementation is available in the node branch. IP Address, ISP, distance from the server (optional), telemetry (optional), results sharing (optional), and multiple points of the test (optional). -
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browserless
browserless
Browser automation built for enterprises, loved by developers. Fast, scalable, and reliable browser automation. Make headless automation your competitive advantage. Integrate with one-line of code in puppeteer and playwright. Or use Selenium. Don't feel like writing code to do screenshots? Use our REST APIs to do they heavy lifting. Increase your app's performance by not having to manage Chrome or other browsers. Our smallest plan lets you run 10 browsers at once! Sessions can run as long as you want, and even keep the browser open indefinitely. Stop trying to get Chrome running in lambda, or fonts rendering properly and just use browserless. Your account page shows crucial information like sessions and queues plus includes email notifications. browserless takes care of all the dependencies, sand-boxing, and management of the web browser. You can connect remotely and automate it with open-source libraries, using our pre-built REST APIs, or write and run your own functions.Starting Price: $10 -
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RapiDoc
RapiDoc
Free of any frameworks, setups, configs, build steps, or packaging. Can be used with any framework or just with vanilla Javascript. Style it to your heart's content. Change font, logo, colors, and theme. Inject external HTML or embed it into another HTML document. Create beautiful, customizable, interactive API documentation from OpenAPI specification. Use It just like any other HTML tag, Change its attribute using JavaScript and see it react to those changes. Basic knowledge of HTML is all that's required. Minimal dependencies, no runtime, and no virtual DOM ensure the lowest memory consumption, Just the native and raw speed of modern browsers. Loved by tech writers, designers, dev-ops, testers, and developers alike, due to its simplicity, interoperability, and powerful features. No special build-steps, runtime, or framework are required. Comes with built-in console to Try out the APIs. Supports authentication mechanism. No validation ensures you can test negative cases.Starting Price: Free -
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Refraction
Refraction
Refraction is a code-generation tool for developers. It uses AI to generate code for you. You can use it to generate unit tests, documentation, refactor code, and more. Generate code using AI in 34 languages — Assembly, C#, C++, CoffeeScript, CSS, Dart, Elixir, Erlang, Go, GraphQL, Groovy, Haskell, HTML, Java, JavaScript, Kotlin, LaTeX, Less, Lua, MatLab, Objective-C, OCaml, Perl, PHP, Python, R Lang, Ruby, Rust, Sass / SCSS, Scala, Shell, SQL, Swift, and TypeScript. Join thousands of developers around the world using Refraction to generate documentation, create unit tests, refactor code, and more using AI. Use the power of AI to automate the tedious parts of software development like testing, documentation, and refactoring, so you can focus on what matters. Refactor, optimize, fix and style-check your code. Generate unit tests for your code with various test frameworks. Explain the purpose of your code to make it easier to understand.Starting Price: $8 per month -
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BFuzz
RootUp
BFuzz is an input-based fuzzer tool that takes HTML as an input, opens up your browser with a new instance, and passes multiple test cases generated by domato which is present in the recurve folder of BFuzz, more over BFuzz is an automation that performs the same task repeatedly and it doesn't mangle any test cases. Running BFuzz will ask for the option of whether to fuzz Chrome or Firefox, however, this will open Firefox from recurve and create the logs on the terminal. BFuzz is a small script that enables you to open the browser and run test cases. The test cases in recurve are generated by the domato generator and contain the main script. It contains additional helper code for DOM fuzzing.Starting Price: Free -
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Citrus
Citrus
Framework for automated integration tests supporting a wide range of message protocols and data formats! In a typical test scenario the system under test is running on a test infrastructure while interacting with Citrus over various messaging transports. During the test Citrus is able to act on both sides as client and consumer exchanging real request/response messages over the wire. With each test step you can validate the exchanged messages with expected control data including message headers, attachments and body content (e.g. XML, Json, ...). The test provides a Java fluent API to specify the test logic and is fully automated. The repeatable test is nothing but a normal JUnit or TestNG test and can easily run as integration test in a CI/CD pipeline. Kamelets represent Camel-K route snippets that act as standardized event sources and sinks in an event driven architecture.Starting Price: Free -
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Browserling
Browserling
You can interact with the browsers live as if they were installed on your computer. We run real desktop browsers on our servers in virtual machines. We don't use emulators or fake browsers. We install the latest browsers as soon as they come out. You get online access to the latest browsers instantly. You can capture, save, and share screenshots of your web pages in all browsers. You can also annotate them and send bug reports this way. Change screen resolution and resize browsers for all your responsive testing needs. All connections between you and Browserling are SSL encrypted. Your browsing is completely anonymous! Browserling is powered by HTML5 and JavaScript. You don't need to install anything. It just works.Starting Price: $19 per user per month -
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ScrapingBee
ScrapingBee
We manage thousands of headless instances using the latest Chrome version. Focus on extracting the data you need, and not dealing with concurrent headless browsers that will eat up all your RAM and CPU. Thanks to our large proxy pool, you can bypass rate limiting website, lower the chance to get blocked and hide your bots! ScrapingBee web scraping API works great for general web scraping tasks like real estate scraping, price-monitoring, extracting reviews without getting blocked. documentation. If you need to click, scroll, wait for some elements to appear or just run some custom JavaScript code on the website you want to scrape, check our JS scenario feature. If coding is not your thing, you can leverage our Make integration to create custom web scraping engines without writing a single line of code!Starting Price: $49 per month -
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Nightwatch.js
Nightwatch.js
Nightwatch.js is an integrated, easy to use End-to-End testing solution for web applications and websites, written in Node.js. It uses the W3C WebDriver API to drive browsers and perform commands and assertions on DOM elements. Simple but powerful syntax which enables you to write tests very quickly, using Javascript (Node.js) and CSS or Xpath selectors. Typescript is supported as well. Built-in command-line test runner which runs the tests either sequentially or in parallel, with retries and implicit waits. Also supports grouping of test suites and tags. Manages automatically Selenium or WebDriver services (ChromeDriver, GeckoDriver, Edge, Safari) in a separate child process. Fluent and easy to work with Page Object Model support to better organise elements and sections, with support for both CSS or Xpath selectors.Starting Price: Free -
31
PhpStorm
JetBrains
The Lightning-Smart PHP IDE. PhpStorm deeply understands your code. PhpStorm is perfect for working with Symfony, Laravel, Drupal, WordPress, Zend Framework, Magento, Joomla!, CakePHP, Yii, and other frameworks. The editor actually 'gets' your code and deeply understands its structure, supporting all the PHP language features for modern and legacy projects. It provides the best code completion, refactorings, on-the-fly error prevention, and more. Make the most of the cutting edge front-end technologies, such as HTML 5, CSS, Sass, Less, Stylus, CoffeeScript, TypeScript, Emmet, and JavaScript, with refactorings, debugging, and unit testing available. See the changes instantly in the browser thanks to Live Edit. Perform many routine tasks right from the IDE, thanks to the Version Control Systems integration, support for remote deployment, databases/SQL, command-line tools, Docker, Composer, REST Client, and many other tools.Starting Price: $199 per user per year -
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Loadsy
Loadsy
Run Performance Tests for Digital Products/Services in Minutes Avoid Steep Learning Curve… Design, Run, Save and Automate your Tests with JavaScript Code. • Design threads as complex as you need, simulate diverse and real scenarios simultaneously for your tests with JavaScript code. • Create and run any kind of performance tests with just one tool. • Tests for any platform no matter where it’s hosted, in the cloud, or an on-premise server. • Test continuously with CI/CD integrated tools, automate performance tests. • Get data in real-time, catch and solve blind spots before a user does. • Get a realistic simulation with virtual browsers and simulate hundreds of thousands of users.Starting Price: $0.05/hour/user -
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WebKit
WebKit
WebKit is a fast, open source web browser engine used by Safari, Mail, App Store, and many other applications on macOS, iOS, and Linux. It serves as the foundation for rendering web content and executing JavaScript in these applications. Developers can contribute to the project by reporting bugs or submitting code. Web developers can follow WebKit's development, check feature status, and download Safari Technology Preview to experiment with the latest web technologies. The project emphasizes real-world web compatibility, standards compliance, stability, performance, battery life, security, privacy, portability, usability, and ease of code modification. WebKit is open source and available under the BSD 2-Clause license, with the exception of the WebCore and JavaScriptCore components, which are available under the GNU Lesser General Public License.Starting Price: Free -
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Modernizr
Modernizr
Modernizr tells you what HTML, CSS, and JavaScript feature the user’s browser has to offer. It’s a collection of superfast tests, or “detects” as we like to call them, which run as your web page loads, then you can use the results to tailor the experience to the user. All web developers come up against differences between browsers and devices. That’s largely due to different feature sets, the latest versions of the popular browsers can do some awesome things which older browsers can’t, but we still have to support the older ones. Modernizr makes it easy to deliver tiered experiences and make use of the latest and greatest features in browsers that support them, without leaving less fortunate users high and dry. Modernizr is a small piece of JavaScript code that automatically detects the availability of next-generation web technologies in your user's browsers. Modernizr uses feature detection to allow you to easily tailor your user's experience.Starting Price: Free -
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Apache AntUnit
Apache Software Foundation
Initially all tests for Apache Ant tasks were written as individual JUnit test cases. Pretty soon it was clear that most tests needed to perform common tasks like reading a build file, initializing a project instance with it and executing a target. At this point BuildFileTest was invented, a base class for almost all task test cases. BuildFileTest works fine and in fact has been picked up by the Ant-Contrib Project and others as well. This approach has a couple of advantages, one of them is that it is very easy to translate an example build file from a bug report into a test case. If you ask a user for a testcase for a given bug in Ant, he now doesn't need to understand JUnit or how to fit a test into Ant's existing tests any more. AntUnit takes this approach to testing even further, it removes JUnit completely and it comes with a set of predefined <assert> tasks in order to reuse common kind of checks. -
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Inspectle
Inspectle
Inspect Element is a built-in tool in most web browsers that allows users to view and edit a website's HTML, CSS, and JavaScript code in real time. This feature is particularly useful for web developers, designers, and digital marketers to debug elements, test layout changes, and perform live CSS editing. The tool displays the HTML structure of the webpage, allowing users to select and inspect specific elements. The associated CSS styles are shown in a separate panel, where users can make temporary modifications to see how changes would affect the page's appearance. These adjustments are local and do not alter the actual website; refreshing the page will revert to the original content. This functionality is invaluable for testing design changes, troubleshooting issues, and learning how different web elements are constructed. Our platform is designed around flexibility. Each production site in the world is unique and so is the solution.Starting Price: €24 per month -
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Selenium WebDriver
Selenium
Selenium WebDriver drives a browser natively, as a real user would, either locally or on remote machines. WebDriver is simple, it is designed as a concise and compact programming interface. Through a simple setup, WebDriver can be used with all major browsers. Automate real user interactions in Firefox, Safari, Edge, Chrome, Internet Explorer and more! Selenium WebDriver refers to both the language bindings and the implementations of the individual browser controlling code. This is commonly referred to as just WebDriver. The W3C is an international community that works to develop Web standards. In June 2018, WebDriver became a W3C recommendation. Major browser vendors (Mozilla, Google, Apple, Microsoft) support WebDriver and work constantly to improve the browsers and browser controlling code, which leads to a more uniform behavior across the different browsers, making your automation scripts more stable.Starting Price: Free -
38
jQuery
jQuery
jQuery is a fast, small, and feature-rich JavaScript library. It makes things like HTML document traversal and manipulation, event handling, animation, and Ajax much simpler with an easy-to-use API that works across a multitude of browsers. If you're new to jQuery. Return a collection of matched elements either found in the DOM based on passed argument(s) or created by passing an HTML string. All the aspects of the API that were deprecated in the corresponding version of jQuery. These methods get and set DOM attributes of elements.Starting Price: Free -
39
WebScraping.ai
WebScraping.ai
WebScraping.AI is an AI-powered web scraping API that simplifies data extraction by handling browsers, proxies, CAPTCHAs, and HTML parsing on behalf of the user. By providing a URL, users can receive the HTML, text, or data from the target webpage. The platform features JavaScript rendering in a real browser, ensuring that page content appears exactly as it would on a user's computer. It also offers automatically rotated proxies, allowing users to scrape any site without limitations, with geotargeting options available. HTML parsing is performed on WebScraping.AI's servers, alleviating concerns about heavy CPU load and potential vulnerabilities in HTML parsers. Additionally, the platform includes tools powered by large language models to extract unstructured page content, provide answers to questions, generate summaries, and perform rewrites. Users can extract visible page text after JavaScript rendering and use it as a prompt for their own LLM models.Starting Price: $29 per month -
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Browserbase
Browserbase
Headless browsers that work everywhere, every time. Control fleets of stealth browsers to build reliable browser automation. Focus on your code with autoscaled browser instances, and best-in-class stealth features. Run hundreds of browsers with powerful resources to power uninterrupted long-running sessions. Work with headless browsers as you do with your browser with live access, replay, and full tools featuring logs and networks. Build and run undetectable automation with configurable fingerprinting, automatic captcha solving, and proxies. The best AI agents are built with Browserbase, navigating the most complex web pages, undetected. With a few lines of code, enable your AI agent to interact with any web pages, undetected and at scale. At any time, leverage the live session view feature to let humans help in completing complex tasks. Leverage Browserbase’s infrastructure to power your web scraping, automation, and LLM applications.Starting Price: $39 per month -
41
TheDevSpace
TheDevSpace
Complete roadmap for full-stack developers, covering coding fundamentals from HTML, CSS, and JavaScript to modern frameworks. Featuring an in-browser code playground, 10 real-world projects, and a production-ready Next.js SaaS boilerplate. -
42
Parsley
Parsley
Parsley, the ultimate JavaScript form validation library. Validating frontend forms has never been so powerful and easy. Like no other form validation library, simply write in English your requirements inside your form HTML tags, Parsley will do the rest! No need to write even a single JavaScript line for simple form validation. Parsley is now smarter, it automatically detects your forms' modifications and adapts its validation accordingly. Simply add, remove or edit fields, Parsley validation will follow! Parsley is shipped with more than a dozen useful validators. If not enough, use the awesome Parsley extra Ajax validator or tons of other extended validators provided by the community. Parsley strongly focuses on UI and UX. Override almost every Parsley default behavior to fit your exact needs. Still ships almost bug-free. Parsley is strongly tested and aims to work on every browser (including IE8).Starting Price: Free -
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OpenText Dynamic Application Security Testing (DAST) is an automated solution that simulates real-world attacks on live applications, APIs, and services to identify exploitable vulnerabilities. It operates on running production environments, requiring no source code or staging setup. Designed for modern DevSecOps teams, the platform prioritizes vulnerabilities for root cause analysis and integrates seamlessly through REST APIs and an intuitive user interface. OpenText DAST supports automation in CI/CD pipelines, reducing manual efforts while accelerating security feedback. It covers modern web technologies like HTML5, JSON, AJAX, JavaScript, and HTTP2 to ensure comprehensive testing. Flexible deployment options allow organizations to run the solution on public cloud, private cloud, or on-premises environments.
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Smart GWT
Isomorphic Software
Smart GWT combines the industry’s richest set of GWT UI components with a powerful Java server framework to deliver an end-to-end solution for building enterprise web applications. Using Google Web Toolkit, developers can create modern HTML5/Ajax interfaces entirely in Java, producing optimized JavaScript that runs in the browser for instant responsiveness and fewer server round-trips. Smart GWT is also AI native, extending its proven architecture with AI-enhanced components for intelligent filtering, summarization, and natural-language data exploration. Developers can integrate SmartClient AI features such as Answer Engine, AI Report Builder, and Instant UI to accelerate development and deliver smarter user experiences. Device-aware components automatically adapt to mobile, tablet, and desktop environments for consistent performance across all platforms.Starting Price: $745 per developer -
45
Istanbul
Istanbul
JavaScript test coverage made simple. Istanbul instruments your ES5 and ES2015+ JavaScript code with line counters, so that you can track how well your unit-tests exercise your codebase. The nyc command-line-client for Istanbul works well with most JavaScript testing frameworks, tap, mocha, AVA, etc. First-class support of ES6/ES2015+ using babel-plugin-Istanbul. Support for the most popular JavaScript testing frameworks. Support for instrumenting subprocesses, using the nyc command-line interface. Adding coverage to your mocha tests could not be easier. Now, simply place the command nyc in front of your existing test command. nyc's instrument command can be used to instrument source files outside of the context of your unit tests. nyc is able to show you all Node processes that are spawned when running a test script under it. By default, nyc uses Istanbul's text reporter. However, you may specify an alternative reporter.Starting Price: Free -
46
Stagehand
Stagehand
Stagehand is an AI-driven web browsing framework that enhances Playwright's capabilities, enabling developers to automate browsers using natural language instructions. Built by Browserbase, it introduces three intuitive APIs, act, extract, and observe, on top of Playwright's base page class, facilitating web automation through straightforward commands. For instance, developers can navigate to a webpage, identify elements like search bars, extract specific data such as product prices, and perform actions like adding items to a cart, all through natural language directives. This approach simplifies the creation of durable, self-healing, and repeatable web automation workflows, reducing the complexity and fragility often associated with traditional methods. Stagehand is fully compatible with existing Playwright code, allowing for seamless integration into current projects. By leveraging AI, it offers a more intuitive and efficient way to handle browser automation tasks.Starting Price: Free -
47
Hyperbrowser
Hyperbrowser
Hyperbrowser is a platform for running and scaling headless browsers in secure, isolated containers, built for web automation and AI-driven use cases. It enables users to automate tasks like web scraping, testing, and form filling, and to scrape and structure web data at scale for analysis and insights. Hyperbrowser integrates with AI agents to facilitate browsing, data collection, and interaction with web applications. It offers features such as automatic captcha solving to streamline automation workflows, stealth mode to bypass bot detection, and session management with logging, debugging, and secure resource isolation. The platform supports over 10,000 concurrent browsers with sub-millisecond latency, ensuring scalable and reliable browsing with a 99.9% uptime guarantee. Hyperbrowser is compatible with various tech stacks, including Python and Node.js, and provides both synchronous and asynchronous clients for seamless integration.Starting Price: $30 per month -
48
Kameleo
Kameleo
Kameleo is the ultimate anti-detect browser engineered specifically for maximized success rates in bypassing anti-bot systems, delivering cost-effective web scraping and browser automation with human-like behavior. With auto-updating fingerprint masking, built-in proxy support and lightning-fast performance, users can bypass evolving anti-bot systems and scrape at scale without bans or downtime. Deploy on-premises or in the cloud to minimize costs while enjoying 99.99% uptime. Rapid release cycles and continuous stealth testing maximize success rates, and developer-friendly SDKs for Playwright, Puppeteer or Selenium minimize maintenance hours. In under five minutes, anyone can get started via our intuitive GUI. Plus, our free trial gives everyone the opportunity to try Kameleo for both web scraping and multi-account management.Starting Price: €59 per user per month -
49
Serenity BDD
Serenity BDD
Serenity BDD helps you write cleaner and more maintainable automated acceptance and regression tests faster. Serenity also uses the test results to produce illustrated, narrative reports that document and describe what your application does and how it works. Serenity tells you not only what tests have been executed, but more importantly, what requirements have been tested. One key advantage of using Serenity BDD is that you do not have to invest time in building and maintaining your own automation framework. The aim of Serenity is to make it easy to quickly write well-structured, maintainable automated acceptance criteria, using your favourite BDD or conventional testing library. You can work with Behaviour-Driven-Development tools like Cucumber or JBehave, or simply use JUnit. You can integrate with requirements stored in an external source (such as JIRA or any other test cases management tool), or just use a simple directory-based approach to organise your requirements.Starting Price: Free -
50
EvoSuite
EvoSuite
EvoSuite is an open source tool that automatically generates JUnit test suites for Java classes, utilizing search-based software testing (SBST) techniques to optimize code coverage and detect potential defects. By analyzing Java bytecode, EvoSuite creates executable unit tests with assertions, aiming to achieve high structural coverage such as branch, line, and mutation coverage. It employs a hybrid approach that combines evolutionary algorithms with mutation testing to produce effective and minimal test suites. EvoSuite supports various Java versions and integrates with build systems and IDEs, including Maven, Eclipse, IntelliJ IDEA, and command-line interfaces. It also offers regression testing capabilities through EvoSuiteR, which generates test suites to identify differences between two versions of a Java class. EvoSuite has been benchmarked on numerous open source projects and has been utilized in both academic research and industrial applications to enhance software testing.Starting Price: Free
