Open Source JavaScript Web Scrapers
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JavaScript Web Scrapers
View 211 business solutionsBrowse free open source JavaScript Web Scrapers and projects below. Use the toggles on the left to filter open source JavaScript Web Scrapers by OS, license, language, programming language, and project status.
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Lux
Fast Go CLI tool for downloading videos from many streaming sites
Lux is an open source command-line tool designed for downloading videos from a wide variety of online media platforms. Written in the Go programming language, the project focuses on providing a fast and lightweight downloader that can retrieve media content directly from supported websites. Lux works by extracting video information from a given page and downloading the available streams to the user’s system. Lux supports downloading individual videos as well as playlists and can display multiple available quality options before the user selects which stream to download. It includes features for resuming interrupted downloads, allowing users to continue large downloads without starting over. It also provides network-related options such as proxy support and cookies to access restricted or authenticated content. With its modular architecture and command-line interface, Lux can function both as a standalone downloader and as a library. -
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EasySpider
A visual no-code/code-free web crawler/spider
A visual code-free/no-code web crawler/spider, supporting both Chinese and English. -
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pandora-box
Lightweight cross-platform desktop client for managing Mihomo proxies
Pandora-Box is a lightweight desktop client designed to provide a graphical interface for the Mihomo proxy core. It allows users to manage proxy configurations and subscriptions through a simple and user-friendly interface rather than working directly with configuration files. Pandora-Box supports multiple proxy protocols and provides tools to organize and control network routing rules. It is designed to work for both casual users who want an easy setup and advanced users who need more control over proxy behavior. It also supports automatic rule grouping and features such as TUN mode to enable system-wide proxy routing. Pandora-Box focuses on delivering a clean interface with practical features for importing, managing, and converting proxy subscriptions. Pandora-Box combines a desktop interface with backend components to create a functional proxy management environment that simplifies complex networking configurations. -
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katana
Fast CLI web crawler for discovering endpoints in modern web apps
Katana is an open source command-line web crawling and spidering framework developed by ProjectDiscovery. It is designed to efficiently crawl websites and web applications in order to discover endpoints, resources, and other useful information that may not be easily visible through manual browsing. Katana focuses on speed and automation, making it suitable for use in security reconnaissance workflows and automated pipelines. Katana supports both standard HTTP crawling and headless browser crawling, allowing it to navigate modern web applications that rely heavily on JavaScript. Through headless browsing, it can analyze dynamic content and single-page applications built with modern frameworks, improving its ability to uncover hidden paths and assets. Katana offers flexible configuration options such as depth control, concurrency limits, and filtering mechanisms to refine results and manage scanning scope. -
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BrowserBox
Remote isolated browser API for security
Remote isolated browser API for security, automation visibility and interactivity. Run-on our cloud, or bring your own. Full scope double reverse web proxy with a multi-tab, mobile-ready browser UI frontend. Plus co-browsing, advanced adaptive streaming, secure document viewing and more! But only in the Pro version. BrowserBox is a full-stack component for a web browser that runs on a remote server, with a UI you can embed on the web. BrowserBox lets your provide controllable access to web resources in a way that's both more sandboxed than, and less restricted than, traditional web <iframe> elements. Build applications that need cross-origin access, while delivering complex user stories that benefit from an encapsulated browser abstraction. Since the whole stack is written in JavaScript you can easily extend it to suit your needs. The technology that puts unrestricted browser capabilities within reach of a web app has never before existed in the open. -
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UI.Vision RPA
Open-Source RPA Software (formerly Kantu)
The UI Vision RPA software is the tool for visual process automation, codeless UI test automation, web scraping and screen scraping. Automate tasks on Windows, Mac and Linux. The UI Vision RPA core is open-source with enterprise security. The free and open-source browser extension can be extended with local apps for desktop UI automation. UI.Vision RPA's computer-vision visual UI testing commands allow you to write automated visual tests with UI.Vision RPA - this makes UI.Vision RPA the first and only Chrome and Firefox extension (and Selenium IDE) that has "👁👁 eyes". A huge benefit of doing visual tests is that you are not just checking one element or two elements at a time, you’re checking a whole section or page in one visual assertion. The visual UI testing and browser automation commands of UI.Vision RPA help web designers and developers to verify and validate the layout of websites and canvas elements. -
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diskover-community
Open source file indexing & storage analytics powered by Elasticsearch
Diskover Community Edition is an open source file system indexing and storage analytics platform designed to help organizations understand and manage large volumes of file data. It crawls file systems and indexes metadata using Elasticsearch, enabling fast search, analysis, and organization of files stored across different storage systems. It allows administrators and users to explore file structures, monitor storage usage, and gain insights into how data is distributed across infrastructure. By indexing file metadata from sources such as local file systems, network shares like NFS and SMB, and cloud storage, the tool provides a centralized way to analyze heterogeneous storage environments. Diskover also helps identify outdated or unused files, duplicate data, and inefficient storage usage that can waste resources or increase operational costs. A Python-based indexing engine performs the scanning and indexing tasks. -
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pxer
Pixiv crawler userscript for downloading artwork and galleries easily
Pxer is an open source tool designed to help users collect and download artwork from the Pixiv illustration platform. It is implemented primarily in client-side JavaScript and runs directly in the browser through a userscript environment, allowing it to integrate seamlessly with Pixiv pages. Pxer provides functionality to crawl and gather images, artwork metadata, and other related content from supported Pixiv pages. It is designed to be accessible even for users who are not developers, emphasizing ease of use and quick setup through browser extensions such as Tampermonkey. Once installed, Pxer adds controls to compatible Pixiv pages so users can trigger batch retrieval of illustrations and related assets. It focuses on making it easier to obtain large collections of artworks from artists, bookmarks, rankings, and search results. Its browser-based approach means the tool can operate without requiring a standalone desktop application while still providing powerful scraping. -
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lightcrawler
Website crawler that audits site pages automatically with Lighthouse
Lightcrawler is a command-line tool designed to crawl a website and run automated audits on the discovered pages using Google Lighthouse. It works by starting from a given URL and recursively exploring linked pages to collect a set of pages that should be analyzed. Each discovered page is then evaluated using Lighthouse, which performs checks related to performance, accessibility, and web development best practices. This allows developers to audit multiple pages of a site automatically instead of manually running Lighthouse on each individual page. Lightcrawler supports configuration through a JSON configuration file, enabling users to customize how the crawler operates and which Lighthouse audits should be executed. Settings such as crawl depth and the number of concurrent browser instances can be configured to control how aggressively the crawler scans a site. It was created as a developer utility to help identify issues across an entire website more efficiently. -
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single-file-cli
CLI tool to save complete web pages as single self-contained HTML file
SingleFile CLI is an open source command-line tool designed to save complete web pages as a single self-contained HTML file. It captures the rendered page in a headless browser and embeds all required resources directly into the output document, including stylesheets, scripts, images, and fonts. By consolidating every dependency into one file, it allows users to preserve a faithful copy of a web page that can be viewed offline without requiring external assets. SingleFile CLI works by controlling a browser through the Chrome DevTools Protocol, rendering the page before extracting and packaging all necessary resources. This approach helps ensure that the saved page closely matches the original appearance and functionality. SingleFile CLI can be used for automated archiving, research, documentation, or offline reading workflows where preserving a page exactly as displayed is important. -
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ast-hook-forjs-re
AST-based JavaScript reverse engineering and variable tracing toolkit
ast-hook-for-js-RE is an open source JavaScript reverse engineering toolkit designed to help analysts locate and understand client-side encryption logic used by web applications. It works by intercepting browser traffic through a local proxy server and modifying JavaScript code before it executes in the browser. Using Abstract Syntax Tree (AST) transformations, it injects hook functions into the code to monitor variable assignments and other runtime changes during execution. This allows ast-hook-for-js-RE to capture variable values in memory and store them in a searchable database, effectively enabling variable-level monitoring of program execution. When a user encounters encrypted parameters in network requests, the captured variable data can be searched to determine where those values originated in the code. Once the relevant variable and code location are identified, analysts can trace backward to extract or reproduce the encryption logic used by the site. -
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videodl
Lightweight Python tool for downloading videos from many platforms
Videodl is a lightweight video downloader implemented entirely in Python that allows users to retrieve videos from a wide range of online media platforms. It focuses on providing a fast and simple way to parse video pages and download media files, often prioritizing high-definition versions without watermarks when available. It supports numerous video platforms across both Chinese and international streaming ecosystems, enabling users to fetch content from many popular services through a unified interface. Videodl works by implementing platform-specific client modules that extract video information and download links from supported services. Videodl can integrate with external command-line utilities to improve downloading performance, handle streaming formats such as HLS, and manage encrypted or segmented media streams. Additional utilities can also enable faster downloads, resume interrupted transfers, and process complex playlist structures. -
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crawler
Collection of JS reverse engineering examples for web scraping study
crawler is a collection of web scraping and JavaScript reverse engineering examples designed for learning how modern websites protect their data and how those protections can be analyzed. It contains many case studies that demonstrate how to analyze and replicate request parameters, cookies, and encryption logic used by real websites. Each directory in the project focuses on a specific target service or scenario, showing how browser network requests and JavaScript code can be studied to reproduce API calls programmatically. Many examples illustrate techniques such as debugging scripts, intercepting requests, analyzing encrypted parameters, and understanding authentication flows. crawler also explores common anti-scraping defenses and demonstrates how developers can examine them through debugging tools and reverse engineering techniques. -
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rebroswer-patches
Patches for Puppeteer and Playwright to reduce automation detection
rebrowser-patches is an open source collection of patches designed to improve the stealth capabilities of browser automation frameworks. It focuses primarily on enhancing Puppeteer and Playwright by modifying parts of their source code that may reveal automation activity to websites. Many modern websites rely on bot detection mechanisms that identify automation through behavioral or technical signals, and these patches aim to reduce those detection vectors. By applying targeted fixes, the project helps developers minimize automation leaks that are difficult or impossible to address through configuration options alone. The patches can be applied directly to installed libraries or used through drop-in replacements that already contain the modifications. Developers can enable, disable, or remove the patches when needed, making it flexible for experimentation or debugging workflows. rebrowser-patches is maintained with the expectation that automation libraries evolve over time. -
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Tholian Stealth
Secure, Peer-to-Peer, Private and Automateable Web Browser
Tholian Stealth is an open-source privacy-focused web browser and automation platform designed to combine secure browsing, web scraping, and proxy functionality into a unified system. It aims to prioritize user privacy and autonomy by minimizing tracking, blocking unnecessary requests, and restricting potentially harmful web technologies such as JavaScript execution. The platform operates as both a browser and a network service, capable of acting as a proxy, scraper, and content filtering system for other applications. Stealth introduces peer-to-peer networking features that allow users to share cached content and reduce bandwidth usage, which can be especially beneficial in constrained environments. It also includes advanced content filtering and optimization mechanisms that strip unwanted or malicious elements from web pages before rendering. -
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douyin
Open source Douyin crawler for collecting and downloading public data
DouyinCrawler is an open source data collection tool designed to gather publicly available information from the Douyin platform. It demonstrates how to build a Python-based web crawler combined with a graphical interface and command line functionality. It allows users to collect data from various types of Douyin content, including user profiles, videos, hashtags, and music pages. DouyinCrawler supports both automated scraping and batch operations to process multiple targets efficiently. It also integrates with the Aria2 download utility to enable large-scale downloading of videos and images associated with collected content. It includes multiple usage modes such as a desktop GUI, a web service interface, and a command line tool for flexible deployment. In addition to data collection, it supports incremental updates so users can track and gather newly published content without reprocessing previously collected data. -
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newpipeextractor
Library for extracting streaming site data without official APIs
NewPipeExtractor is an open source Java library designed to extract data from streaming platforms by analyzing their web interfaces instead of relying on official APIs. It serves as the core extraction component used by the NewPipe Android application, but it is built as a standalone library that can also be integrated into other software projects. NewPipeExtractor provides a unified framework for retrieving information such as video streams, playlists, channels, and search results from supported streaming services. It handles many low-level tasks involved in web data extraction, including parsing responses, managing platform-specific logic, and handling errors, allowing developers to focus on implementing application features rather than scraping mechanics. Each supported service is implemented through its own extractor components that conform to a common interface, enabling consistent access to data across different platforms. -
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spider_collection
Collection of Python web scraping scripts for data extraction tasks
spider_collection is a collection of Python web crawler scripts created primarily for experimentation, learning, and practical scraping tasks. spider_collection gathers multiple independent spiders designed to collect data from different platforms and services, demonstrating a variety of scraping techniques and workflows. These crawlers make use of common Python scraping tools such as requests, parsel, BeautifulSoup, and the Scrapy framework to extract structured information from web pages. Several scripts also incorporate multi-threading and proxy usage to improve scraping efficiency and help avoid common anti-scraping limitations. In addition to raw data collection, some spiders include basic data processing and analysis using tools such as pandas and simple visualization with matplotlib. It also contains examples of proxy pool integration and encapsulation to support more reliable crawling when working with sites that enforce request limits. -
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fess
Open source enterprise search server for websites, files, and data
Fess is an open source enterprise search server designed to provide powerful full-text search capabilities across multiple data sources. It enables organizations to quickly deploy a scalable search environment without requiring deep knowledge of underlying search technologies. Fess is built on top of OpenSearch and offers an integrated solution for crawling, indexing, and searching documents from websites, file systems, and various data stores. Fess includes a built-in crawler that can collect content from sources such as databases, CSV files, and shared storage, making it suitable for centralized knowledge discovery. It supports indexing and searching across many document formats including office documents, PDFs, and compressed archives. It also provides a web-based administrative interface that allows administrators to configure crawling targets, manage indexing tasks, and adjust search settings from a graphical dashboard. -
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owllook
Vertical novel search engine with unified reading and tracking tools
Owllook is an open source vertical search engine designed for discovering and reading online novels from multiple sources. Instead of redirecting users to different sites, the system parses content from many novel platforms and presents it in a unified reading interface. It focuses on providing a simple and comfortable reading experience with features such as searching for books, following updates, bookmarking chapters, and maintaining a personal bookshelf. It aggregates results from multiple search engines and applies parsing rules to extract novel metadata, chapters, and content in a consistent format. Owllook also includes functionality for tracking reading history, displaying rankings based on search activity, and recommending books using a similarity-based approach. Owllook is built using asynchronous technologies to support efficient data retrieval and responsive interactions while reading or searching. -
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serverless-chrome
Run headless Chrome/Chromium on AWS Lambda
Serverless Chrome contains everything you need to get started running headless Chrome on AWS Lambda (possibly Azure and GCP Functions soon). The aim of this project is to provide the scaffolding for using Headless Chrome during a serverless function invocation. Serverless Chrome takes care of building and bundling the Chrome binaries and making sure Chrome is running when your serverless function executes. In addition, this project also provides a few example services for common patterns (e.g. taking a screenshot of a page, printing to PDF, some scraping, etc.). Why? Because it's neat. It also opens up interesting possibilities for using the Chrome DevTools Protocol (and tools like Chromeless or Puppeteer) in serverless architectures and doing testing/CI, web-scraping, pre-rendering, etc. You must configure your AWS credentials either by defining AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY environmental variables, or using an AWS profile. -
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OpenWebSpider is an Open Source multi-threaded Web Spider (robot, crawler) and search engine with a lot of interesting features!
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Methanol is a scriptable multi-purpose web crawling system with an extensible configuration system and speed-optimized architectural design. Methabot is the web crawler of Methanol.
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PHP web API designed to simplify object handling(loading, saving, querying, displaying, and editing), abstract the data from its display structure, and layout and allow the target data to be delivered to any supported format without special logic.
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DotnetSpider
Lightweight .NET framework for fast web crawling and data scraping
DotnetSpider is a web crawling and data extraction framework built on the .NET Standard platform. It is designed to help developers create efficient and scalable crawlers for collecting structured data from websites. It provides a high-level API that simplifies the process of defining spiders, managing requests, and extracting content from web pages. Developers can create custom spiders by extending base classes and configuring pipelines that handle downloading, parsing, and storing collected data. DotnetSpider is modular, allowing different components such as request schedulers, downloaders, and storage systems to work together in a flexible workflow. DotnetSpider also supports distributed crawling environments, making it possible to scale data collection across multiple agents and machines. With support for various storage backends and extensible parsing mechanisms, it is suitable for building complex scraping systems or automated data gathering pipelines.
