Open Source JavaScript Software - Page 21
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JavaScript Software
Browse free open source JavaScript Software and projects below. Use the toggles on the left to filter open source JavaScript Software by OS, license, language, programming language, and project status.
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Deploy Apps in Seconds with Cloud RunCloud Run is the fastest way to deploy containerized apps. Push your code in Go, Python, Node.js, Java, or any language and Cloud Run builds and deploys it automatically. Get fast autoscaling, pay only when your code runs, and skip the infrastructure headaches. Two million requests free per month. And new customers get $300 in free credit.
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AI-generated apps that pass security reviewRetool lets you generate dashboards, admin panels, and workflows directly on your data. Type something like “Build me a revenue dashboard on my Stripe data” and get a working app with security, permissions, and compliance built in from day one. Whether on our cloud or self-hosted, create the internal software your team needs without compromising enterprise standards or control.
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Partyshare
A free, open source file sharing application
A free, open source file sharing application, built on the peer-to-peer hypermedia protocol IPFS. -
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Pixiv Toolkit
A web extension for Pixiv
Pixiv Tookit is a web extension for Pixiv users. You can download animation, manga, illusions, and novels from Pixiv using this. If you are using Chrome, you can download it from Chrome web store. If you are using Firefox, you can download it from Firefox Add-ons. If you are not using Chrome or Firefox, you can try clone the project to your local machine, and build the extension by yourself. There is a layer with a arrow will appear at the center bottom of the page if the page has available content. Click the arrow to active the action panel, then enjoy. You can use this extension to convert the ugoira on Pixiv to GIF or WebM file, or pack the images of manga to download or save the novel as epub. You can also download images from Pixiv Comic and Pixiv Fanbox (Notice: You need to have access to the post or comic you want to download in order to download the resource). -
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Pot Desktop
A cross-platform software for text translation and recognition
Pot-Desktop is a cross-platform productivity tool aimed at helping users quickly translate, perform OCR (optical character recognition), and synthesize speech for selected text or images — all with minimal friction. It supports picking text via mouse selection (“highlight-and-translate”), clipboard listening, or screenshot-based OCR; this makes it ideal for reading webpages, documents, images — or any on-screen text — and instantly getting translations or text extraction. The tool supports external plugin extensions, which means its functionality can be expanded far beyond the built-in options: you can add translation engines, OCR backends, TTS engines, vocabulary export (e.g. for language learning), and more. Pot-Desktop works on Windows, macOS, and Linux (including Wayland environments), and offers convenient installers or package-manager installation methods (e.g. via brew or .deb, etc.), so it’s accessible for users on all major desktop OSes. -
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Poznote
Poznote is a personal note-taking and documentation platform
Poznote is an open-source, self-hosted note-taking and personal knowledge management platform that combines modern editing features with robust organizational tools to help users capture, structure, and retrieve information efficiently. It supports rich text and Markdown editing alongside outline-style notes, attachments, workspaces, folders, and tags, making it suitable for everything from quick daily journaling to long-term documentation projects. Poznote includes a RESTful API that enables programmatic access and integration with other tools, and it even offers an MCP (Model Context Protocol) server to let AI assistants interact with your notes via natural language commands. In addition to basic note creation and editing, the platform features powerful full-text search, public sharing links, backups and exports, trash management, and multi-user support with profiles isolated per user, giving individuals and teams control over their content. -
Cut Data Warehouse Costs up to 54% with BigQueryBigQuery delivers up to 54% lower TCO than cloud alternatives. Migrate from legacy or competing warehouses using free BigQuery Migration Service with automated SQL translation. Get serverless scale with no infrastructure to manage, compressed storage, and flexible pricing—pay per query or commit for deeper discounts. New customers get $300 in free credit.
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Retire.js
Scanner detecting the use of JavaScript libraries
There is a plethora of JavaScript libraries for use on the web and in node.js apps out there. This greatly simplifies, but we need to stay updated on security fixes. "Using Components with Known Vulnerabilities" is now a part of the OWASP Top 10 and insecure libraries can pose a huge risk for your web app. The goal of Retire.js is to help you detect the use of versions with known vulnerabilities. Scan a web app or node app for use of vulnerable JavaScript libraries and/or node modules. grunt-retire scans your grunt-enabled app for use of vulnerable JavaScript libraries and/or node modules. Scans visited sites for references to insecure libraries and puts warnings in the developer console. An icon on the address bar displays will also indicate if vulnerable libraries were loaded. Retire.js has been adapted as a plugin for the penetration testing tools Burp and OWASP ZAP. -
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SVGO
Node.js tool for optimizing SVG files
SVG Optimizer is a Node.js-based tool for optimizing SVG vector graphics files. SVG files, in particular those exported from multiple editors, normally contain tons of redundant and useless information. This can include editor metadata, comments, hidden elements, default or non-optimal values and other stuff that can be safely removed or converted without affecting the SVG rendering result. Some options can be configured with CLI though it may be easier to have the configuration in a separate file. SVGO has a plugin-based architecture, so almost every optimization is a separate plugin. -
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Saka Key
A keyboard interface to the web
Saka Key lets you control your browser with keyboard shortcuts. It is easy to use, highly configurable and will transform how you surf the web. Put away your mouse. When the web isn't accessible, it's because people who author content don't understand the benefit of making it accessible. Saka Key leverages accessibility information to make the browsing experience better for everyone. I hope this will encourage the creation of accessible content. Keyboard shortcuts are only the beginning of this journey. Screen reading and voice commands are on the roadmap. Map keyboard keys to browser tasks like scrolling, clicking links, switching, moving, closing, muting, and refreshing tabs, zooming, and navigating pages. Keyboard shortcuts are flexible, powerful, and easy to customize. Saka Key lets you easily switch between shortcut profiles (e.g. left hand, right hand, default, Vimium), and lets you import and export your settings. -
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Select2
The jQuery replacement for select boxes
Select2 is a jQuery-based replacement for select boxes that allows for searching, tagging, pagination of results, remote data sets, and many other useful options. It’s ideal for enhancing native selects in terms of search and interface, easily loading data from JavaScript, paging and working with large datasets and more. Select2 comes with remote data support and built-in full browser support, be it for modern or legacy browsers. Select2 is also fully extensible, with a great selection of plugins and themes you can choose from to customize it to your needs. -
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Simple Icons
SVG icons for popular brands
Over 2400 Free SVG icons for popular brands. Icons can be downloaded as SVGs directly from our website - simply click the download button of the icon you want, and the download will start automatically. Icons can be served from a CDN such as JSDelivr or Unpkg. Simply use the simple-icons npm package and specify a version in the URL. All icons are imported from a single file, where [ICON SLUG] is replaced by a capitalized slug. We highly recommend using a bundler that can tree shake such as webpack to remove the unused icon code. The icons are also available through our Packagist package. -
99.99% Uptime for MySQL and PostgreSQL on Google CloudCloud SQL Enterprise Plus gives you a 99.99% availability SLA with near-zero downtime maintenance—typically under 10 seconds. Get 2x better read/write performance, intelligent data caching, and 35 days of point-in-time recovery. Supports MySQL, PostgreSQL, and SQL Server with built-in vector search for gen AI apps. New customers get $300 in free credit.
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Superfine
Absolutely minimal view layer for building web interfaces
Superfine is a minimal view layer for building web interfaces. Think Hyperapp without the framework—no state machines, effects, or subscriptions, just the absolute bare minimum (1 kB minified+gzipped). Mix it with your favorite state management library or use it standalone for maximum flexibility. When describing how a page looks in Superfine, we don't write markup. Instead, we use the h() and text() functions to create a lightweight representation of the DOM (or virtual DOM for short), and patch() to actually render the DOM. Superfine won't re-create the entire DOM every time we use patch(). By comparing the old and new virtual DOM we are able to change only the parts of the DOM that need to change instead of rendering everything from scratch. -
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System Design Visualizer
An interactive tool that transforms static system design diagrams
System Design Visualizer is an interactive web-based tool that empowers engineers and architects to visually model, explore, and communicate complex system architecture designs in real time. It provides a drag-and-drop canvas with reusable components representing servers, databases, APIs, message queues, and user clients, enabling stakeholders to create diagrams that describe data flows, dependencies, and interactions clearly and intuitively. Beyond drawing diagrams, the tool supports semantic relationships — meaning elements can have structured metadata, links, and annotations that explain behavior, constraints, and performance assumptions directly within the design. It’s particularly useful for collaborative design sessions, documentation, and architecture reviews, bringing visual clarity to topics that are often buried in text or code comments. -
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System Prompts Leaks
Collection of extracted System Prompts from popular chatbots
System Prompts Leaks is a curated repository that collects known leaked or publicly exposed system prompts used by large language models, organized so researchers, developers, and AI safety advocates can analyze them in one place. The project highlights how system prompts — instructions that strongly influence model behavior — have been inadvertently shared in forums, datasets, and open repositories, illustrating common patterns and potential vulnerabilities in prompt design and deployment. By aggregating these prompts, the repository serves as a valuable resource for understanding how widely different models are being guided in the wild, which helps with comparative analysis across architectures and service providers. It also helps raise awareness around prompt security, showing how exposed system instructions can lead to unintended behaviors or exploitation if not properly protected. -
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Taskr
A fast, concurrency-focused task automation tool.
Taskr is a fast, concurrency-focused task automation tool for Node.js, designed to handle build processes and workflows efficiently. -
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Venom
Venom is the most complete javascript library for Whatsapp
Venom is a high-performance system developed with JavaScript to create a bot for WhatsApp, support for creating any interaction, such as customer service, media sending, sentence recognition based on artificial intelligence and all types of design architecture for WhatsApp. It's a high-performance alternative API to whatzapp, you can send, text messages, files, images, videos and more. Remember, the API was developed on a platform called RESTful Web services, providing interoperability between computer systems on the Internet. It uses a set of well-defined operations that apply to all information resources, HTTP itself defines a small set of operations, the most important being post, get, put and delete. Use it in your favorite language like PHP, Python, C# and others. as long as your language is supported with the HTTP protocol, you will save time and money. you don't need to know how Venom works, we have the complete API documentation, in a professional way! -
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Viewer.js
JavaScript image viewer
You may set viewer options with new Viewer(image, options). If you want to change the global default options, You may use Viewer.setDefaults(options). Enable the modal backdrop, specify static for the backdrop that will not close the modal on click. Specify the visibility and the content of the title. Filter the images for viewing (should return true if the image is viewable, return false to ignore the image). Indicate if toggle the image size between its natural size and initial size when double click on the image or not. As there are some asynchronous processes when start the viewer, you should call a method only when it is available. If you have to use another viewer with the same namespace, call the Viewer.noConflict static method to revert to it. -
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WOW.js
Reveal CSS animation as you scroll down a page
Reveal animations when you scroll. Easily customize animation settings like style, delay, length, offset, iterations, etc. By default, you can use it to trigger animate.css animations. But you can easily change the settings to your favorite animation library. Smaller than other JavaScript parallax plugins, like Scrollorama (they do fantastic things, but can be too heavy for simple needs). Super simple to install, and works with animate.css, so if you already use it, that will be very fast to setup. Fast execution and lightweight code, the browser will like it. It just take seconds to install and use WOW.js! Once purchased on UpLabs, you’ll receive a commercial license PDF and be all set to use WOW.js in your commercial applications. If you want to use WOW.js to develop commercial sites, themes, projects, and applications, the Commercial license is the appropriate license. With this option, your source code is kept proprietary. -
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Web Archives
Browser extension for viewing archived and cached versions of websites
Browser extension for viewing archived and cached versions of web pages, available for Chrome, Edge and Safari. Web Archives is a browser extension that enables you to find archived and cached versions of web pages, and comes with support for more than 10 search engines. Searches can be initiated from the context menu and the browser toolbar. A diverse set of archive and cache sources are supported, which can be toggled and reordered from the extension's options. Visit the wiki for the full list of supported search engines. You may choose to allow the extension to run on every website, or grant access to the current website before a search. When you grant access only to the current website, access must also be granted to each search engine in order to view search results. A handful of search modes are offered that serve different use cases. The search mode can be set independently for the context menu and the browser toolbar from the extension's options. -
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Yomichan
Japanese pop-up dictionary extension for Chrome and Firefox
Yomichan turns your web browser into a tool for building Japanese language literacy by helping you to decipher texts which would be otherwise too difficult tackle. This extension is similar to Rikaichamp for Firefox and Rikaikun for Chrome, but it stands apart in its goal of being an all-encompassing learning tool as opposed to a mere browser-based dictionary. Interactive popup definition window for displaying search results. On-demand audio playback for select dictionary definitions. Kanji stroke order diagrams are just a click away for most characters. Custom search page for easily executing custom search queries. Support for multiple dictionary formats including EPWING via the Yomichan Import tool. Automatic note creation for the Anki flashcard program via the AnkiConnect plugin. Clean, modern code makes it easy for developers to contribute new features. -
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elFinder
Open-source file manager for web, written in JavaScript
elFinder is an open-source file manager for web, written in JavaScript using jQuery UI. Creation is inspired by the simplicity and convenience of Finder program used in Mac OS X operating system. elFinder 2.1.x is currently actively developed, and recommended version. elFinder 2.0.x is stable version but lacks advanced features. All operations with files and folders on a remote server (copy, move, upload, create folder/file, rename, etc.). High-performance server backend and light client UI. Multi-root support. Local file system, MySQL, FTP, SFTP, Box, Dropbox, GoogleDrive and OneDrive volume storage drivers. Support AWS S3, Azure, Digital Ocean Spaces and more with League\Flysystem. Flysystem driver. Cloud storage (Box, Dropbox, GoogleDrive and OneDrive) drivers. Background file/folder upload with Drag & Drop HTML5 support. -
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google-translate-api
A free and unlimited API for Google Translate
A free and unlimited API for Google Translate. The language in which the text should be translated. Must be one of the codes/names (not case sensitive) contained in languages.js. Auto language detection, spelling correction, language correction. Fast and reliable – it uses the same servers that translate.google.com uses. -
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iView Admin
Vue 2.0 admin management system template based on iView
iView Admin is a front-end management background integration solution. It based on Vue.js and use the UI Toolkit iView. iView-admin is one of the members of the iView ecology. It is a set of front-end solutions for the back-end management system based on Vue with a front-end and back-end development model. iView-admin2.0 was refactored from the 1.x version and replaced with Webpack4.0 + Vue-cli3.0 as the basic development environment. Built-in logic functions commonly used in the development of back-end management systems, and out-of-the-box business components, are designed to allow developers to develop back-end management systems with minimal cost and reduce the amount of development. -
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ml5.js
Friendly machine learning for the web
A neighborly approach to creating and exploring artificial intelligence in the browser. ml5.js aims to make machine learning approachable for a broad audience of artists, creative coders, and students. The library provides access to machine learning algorithms and models in the browser, building on top of TensorFlow.js with no other external dependencies. -
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next-update
Tests if module's dependencies can be updated to latest version
Next-Update is a command-line tool that helps developers test the latest versions of their npm dependencies to identify updates that work without breaking their projects. -
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nivo
A rich set of dataviz components
nivo provides a rich set of dataviz components, built on top of the awesome d3 and Reactjs libraries. Several libraries already exist for React d3 integration, but just a few provide server side rendering ability and fully declarative charts. In order to use nivo, you have to install the @nivo/core package and then choose some of the scoped @nivo packages according to the charts you wish to use. Given an array of data series having an id and a nested array of points (with x, y properties), it will compute the line for each data series. All datum having null x or y will be treated as holes, thus portions of the corresponding line will be skipped. You can fully customize it using the circleComponent property to define your own, if you wish to do so you should have a look at the default SVG component to get started. Bar chart which can display multiple data series, stacked or side by side. Also supports both vertical and horizontal layout, with negative values descending below the x axis. -
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slick
The last carousel you'll ever need
slick is an open source, responsive carousel plugin that offers a great number of breakpoints, CSS3 transitions, touch events and so much more. It creates fully responsive, customizable and mobile-friendly carousels that can work with any html element. Everything you’ll ever need for your carousel, slick can achieve quickly and easily. It features a comprehensive range of settings, events, methods and more so you can build a carousel in exactly the way you want. It supports IE8+ as well as most modern browsers (Chrome, Firefox, Safari). See it in action in demos on http://kenwheeler.github.io/slick/
