Open Source JavaScript Software - Page 36
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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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NoteDiscovery
Your Self-Hosted Knowledge Base
NoteDiscovery delivers a self-hosted knowledge base and note-taking platform that empowers individuals and teams to create, organize, and explore their notes locally, giving complete control over their data without relying on commercial services. It emphasizes lightweight performance and privacy, storing notes as plain markdown files that can be easily managed, synced, or version controlled while keeping everything on your own server. The interface is modern and responsive, offering themes, tags, interactive note browsing, and visualization tools like graph views for connected ideas, which makes it suitable for personal “second brain” systems or team wikis. Users benefit from features like fast search, outline navigation, favorites, and plugin extensibility, and the platform works well across devices thanks to its responsive design. -
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Notifme SDK
A Node.js library to send all kinds of transactional notifications
A unified messaging API that enables sending notifications via multiple channels such as email, SMS, push, and chat. -
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OPUS
Open source knowledge base application for Teams
Opus (not to be confused with the audio codec) is a JavaScript library aimed at simplifying certain common tasks, though depending on context the exact scope may vary. In general, it is part of a collection of small utilities by the same author, which tend to favor minimalism, readability, and directness over heavy abstractions. The idea behind Opus (in this JS-utility ecosystem) is to provide functionality that feels native and idiomatic, helping developers quickly get things done without boilerplate. Because the library is lightweight and relies on minimal external dependencies, it is appropriate for small scripts, front-end utilities, and situations where you want to avoid over-engineering. Its simplicity also makes it easy to inspect, understand, and extend — useful traits if you prefer transparent code rather than black-box libraries. -
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Oat UI
Ultra-lightweight, zero dependency, semantic HTML, CSS, JS UI library
Oat is an ultra-lightweight front-end UI library designed to automatically style semantic HTML using minimal CSS and JavaScript with zero external dependencies. The project focuses on simplicity and performance, allowing developers to create clean, modern interfaces without relying on heavy frameworks or complex build systems. Oat works by applying sensible default styling directly to standard HTML elements, meaning developers can achieve polished layouts with little to no custom classes. Its small footprint makes it especially attractive for static sites, documentation, prototypes, and low-overhead web applications. The library can be installed via npm, CDN, or direct download, making it flexible across different development workflows. Overall, Oat prioritizes minimalism, speed, and developer ergonomics for teams that want attractive UI results with extremely low complexity. -
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One API
The LLM API management & distribution system
One API is an open-source platform designed to unify access to multiple AI model providers through a single, consistent API interface. It acts as a gateway that allows developers to manage and route requests to different large language models and AI services without needing to integrate each provider separately. The system supports multiple backends, enabling users to switch between providers or balance usage based on cost, performance, or availability. It includes features such as authentication, rate limiting, and usage tracking, making it suitable for production environments. One API also provides a web-based dashboard for managing keys, monitoring usage, and configuring routing rules. Its architecture is designed for scalability, allowing teams to deploy it as a centralized layer in their AI infrastructure. By abstracting the complexity of working with multiple APIs, it simplifies development and reduces vendor lock-in. -
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OnlyOffice Web
Perform common file preview and editing via the web
OnlyOffice Web is a browser-based document editing platform built on top of OnlyOffice that allows users to view and edit files entirely on the client side without requiring a backend server. It is designed with a privacy-first approach, ensuring that all document processing occurs locally in the browser, which prevents sensitive data from being uploaded or stored externally. The application supports a wide range of file formats, including DOCX, XLSX, PPTX, and CSV, making it versatile for handling common office documents. It offers a smooth and responsive editing experience, leveraging modern web technologies to replicate the functionality of traditional desktop office suites. The platform can also function as a Progressive Web App, allowing users to install it and work offline with full functionality. Additionally, it supports opening documents directly from remote URLs, making it flexible for integration into workflows or content delivery systems. -
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OpenPAI
Resource scheduling and cluster management for AI
OpenPAI has entered stable mode with no major feature release planned. In order to save maintenance efforts, we changed the repo to read-only mode. For collaboration, please contact repo admin directly. With the release of v1.0, OpenPAI is switching to a more robust, more powerful, and lightweight architecture. OpenPAI is also becoming more and more modular so that the platform can be easily customized and expanded to suit new needs. OpenPAI also provides many AI user-friendly features, making it easier for end users and administrators to complete daily AI tasks. -
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Pageres CLI
Capture website screenshots
Capture screenshots of websites in various resolutions. A good way to make sure your websites are responsive. It's speedy and generates 100 screenshots from 10 different websites in just over a minute. It can also be used to render SVG images. -
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Phaser Raycaster
Raycasting plugin for Phaser 3
Phaser Raycaster is a plugin for Phaser 3 that implements raycasting functionality, enabling developers to simulate visibility, lighting, and field-of-view mechanics in their games. -
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Playwright Skill for Claude Code
Claude Code Skill for browser automation with Playwright
Playwright Skill is an open-source plugin designed for Claude Code that enables dynamic browser automation using Playwright through natural language instructions. The tool allows an AI agent to generate, execute, and manage browser automation scripts on demand, rather than relying on predefined workflows or static test scripts. It is structured as a modular skill within the Claude ecosystem, meaning it can be installed as a plugin and invoked automatically when browser automation tasks are required. The system supports a wide range of use cases, including testing web applications, validating user interfaces, automating workflows, and extracting data from websites. One of its key advantages is its ability to generate custom Playwright code tailored to each request, allowing flexible and context-aware automation. -
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Puck
Open source visual editor for building React drag-and-drop pages
Puck is an open source visual editor designed for React applications that enables developers to build customizable drag-and-drop page editing experiences. It allows teams to create their own page builders by defining React components that can be arranged and configured through a visual interface. Puck is component-based and configuration-driven, meaning developers specify how components render and which editable fields control their properties. Puck integrates directly into existing React environments and works well with frameworks such as Next.js, enabling developers to embed editing capabilities directly inside their applications. It operates with a structured data model that stores content as a JSON payload, allowing the same configuration to power both the editing interface and the production rendering of pages. This approach gives developers full ownership of their content data while avoiding vendor lock-in. -
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RSSHub Radar
Browser extension that simplifies finding and subscribing RSS and RSSH
RSSHub Radar is a derivative project of RSSHub , which is a browser extension that can help you quickly discover and subscribe to the current websites RSS and RSSHub. Supports one-click RSS subscription to Tiny Tiny RSS, Miniflux, FreshRSS, Nextcloud News, Feedly, Inoreader, Feedbin, The Old Reader, Feeds.Pub, BazQux Reader, Local Reader. -
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React Infinite Calendar
Infinite scrolling date-picker built with React
The React Infinite Calendar project is a highly customizable date picker component for React applications that leverages virtualized rendering to provide smooth infinite scrolling through dates. It is designed to handle large date ranges efficiently by rendering only visible elements, which significantly improves performance compared to traditional calendar components. The library supports features such as localization, theming, keyboard navigation, and flexible date constraints, making it suitable for a wide variety of use cases. It integrates seamlessly with modern React workflows and supports multiple module formats for easy adoption in different environments. The component also includes advanced display options such as overlays, animations, and helper elements to enhance user experience. Its architecture relies on virtualization techniques to maintain responsiveness even when navigating across decades of dates. -
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React Localize Redux
Dead simple localization for your React components
Localization library for handling translations in React. -
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React Redux
React bindings for Redux
React Redux is the official React binding for Redux. It lets your React components read data from a Redux store, and dispatch actions to the store to update data. React Redux is maintained by the Redux team, and kept up-to-date with the latest APIs from Redux and React. Designed to work with React's component model. You define how to extract the values your component needs from Redux, and your component receives them as props. Creates wrapper components that manage the store interaction logic for you, so you don't have to write it yourself. Automatically implements complex performance optimizations, so that your own component only re-renders when the data it needs has actually changed. Redux itself is a standalone library that can be used with any UI layer or framework, including React, Angular, Vue, Ember, and vanilla JS. Although Redux and React are commonly used together, they are independent of each other. -
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Redux-ORM
A small, simple and immutable ORM to manage relational data
A small, simple and immutable ORM to manage relational data in your Redux store. Redux-ORM is fast. All queries are lazily evaluated and come with built-in support for memorization. It provides a clean abstraction over low-level updates, protecting the state from accidental mutations. With nearly 100% branch coverage, the library is thoroughly tested to ensure rock-solid code quality. No matter where your data comes from, Redux-ORM will stay out of its way. Even a custom database layer is possible. Defining fields on a Model specifies the table structure in the database for that Model. In order to generate a description of the whole database's structure, we need a central place to register all Models we want to use. An instance of the ORM class registers Models and handles generating a full schema from all the models and passing that information to the database. Often you'll want to have a file where you can import a single ORM instance across the app. -
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Responsively Lazy
Lazy load responsive images
Lazy load responsive images. The best lazy loading implementation available. Handles responsive images. Truly lazy (absolutely no unnecessary requests) SEO-friendly (valid HTML). It supports WebP. The things to customize are the padding-bottom style and the values of the src and data-srcset attributes. If you don't know the image aspect ratio you can skip the div tag and move the responsively-lazy class to the img tag. Responsively Lazy is very different from the other lazy loading libraries. They make you break your HTML by removing the src attribute, or make you put tiny version there or make you use <noscript> to make your images appear in Google Images. The lazy loading works in browsers supporting the srcset attribute. As of December 2017 that's 86.78%. Unsupported browsers will load the image in the src attribute. That's the image search engines and social networks will find, so it's better to make it high-resolution. -
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Riot
Simple and elegant component-based UI library
Why do we need a new UI library? The frontend space is indeed crowded, but we honestly feel the solution is still “out there”. We believe Riot.js offers the right balance for solving the great puzzle. Riot.js brings custom elements to all modern browsers without the use of any polyfill! A custom element glues relevant HTML and JavaScript together forming a reusable component. It is designed to offer you everything you wished native the web components API looked like. HTML syntax is the de facto language of the web and it’s designed for building user interfaces. The syntax is explicit, nesting is inherent to the language, and attributes offer a clean way to provide options for custom tags. Minimalism sets Riot.js apart from others. One of the design goals was to introduce a powerful tag syntax with as little boilerplate as possible. Riot.js has between 10 and 100 times fewer API methods than other UI libraries. -
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Ruler AI
Centralize and sync AI coding rules across tools and projects
Ruler is a CLI tool that centralizes instructions for AI coding assistants in one place. Instead of maintaining separate configuration files for tools like GitHub Copilot, Claude, or Cursor, it stores all rules in a single .ruler/ directory and distributes them automatically. This reduces duplication, avoids inconsistent outputs, and keeps guidance aligned as projects evolve. Ruler supports nested rule loading, allowing teams to define context-specific instructions for different parts of a codebase. It also manages MCP server settings, automates .gitignore updates, and provides simple commands to initialize, apply, and revert configurations. Designed for teams using multiple AI agents, it improves workflow consistency, simplifies onboarding, and ensures all assistants follow the same standards across projects. -
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SQLFlow
SQL compiler bridging databases and machine learning workflows
SQLFlow is an open source project designed to bridge the gap between traditional SQL-based data processing and modern machine learning workflows by extending SQL syntax with AI capabilities. It acts as a compiler that translates SQL programs into executable workflows, enabling users to train, evaluate, and deploy machine learning models directly from SQL statements. It integrates with multiple database engines such as MySQL, Hive, and MaxCompute, while also supporting machine learning frameworks like TensorFlow and XGBoost. By embedding machine learning operations into SQL, it removes the need for users to switch between programming languages such as Python or R, simplifying the overall workflow. SQLFlow also supports model training, prediction, and explanation tasks, allowing data practitioners to work entirely within a familiar query interface. -
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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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Salesforce Lightning Design System
Salesforce Lightning design system
Ready-to-use HTML and CSS UI elements provide the foundation for Salesforce experience development. Visual design values and attributes that ensure branding and UI consistency at scale. Design principles and best practices that guide beautiful, consistent, user-friendly product experiences. Easy-to-use tools help all Trailblazers optimize workflows and bring Salesforce ideas to life. Start building immediately, without worrying about detailed specs. SLDS lets you focus on the big picture to deliver the best possible user experience. Manage design at scale, with a living design system that evolves as needs change. SLDS keeps apps, interfaces, and tools consistent no matter how fast the system grows. SLDS saves time and energy, freeing designers and developers to focus on larger issues of usability and meaning. Standardized, reusable components support collaboration, reinforce branding, and provide a consistent look and user experience. -
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ScienceFair
The futuristic, fabulous and free desktop app
ScienceFair is an open-source, decentralized science publishing platform designed to make scientific knowledge universally accessible, transparent, and censorship-resistant. Built as a desktop application, it allows users to read, search, and share scientific papers using peer-to-peer technologies like IPFS, removing reliance on centralized publishers or servers. ScienceFair is particularly well-suited for researchers, educators, and open science advocates who value permanent access to knowledge and community-driven infrastructure. It supports extensible plugins, decentralized metadata, and interactive content, promoting a more inclusive and resilient research ecosystem. -
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Search by Image
Browser extension for reverse image search, available for Chrome
Search by Image is a powerful browser extension for Safari that makes effortless reverse image searches possible, and comes with support for more than 30 search engines, such as Google, Bing, Yandex, Baidu and TinEye. Search by Image is an open source project made possible thanks to a community of awesome supporters. By purchasing the extension on the Mac App Store, you help support the continued development of the extension. The extension helps journalists and researchers verify the authenticity of images, and assists in the identification of false information on social media. Search by Image is also popular among photographers, helping artists explore how their work is shared on the web, while shoppers find it valuable for discovering similar products at discounted prices. The extension enables you to search for images from the context menu and the browser toolbar with the help of a diverse set of reverse image search engines, which can be toggled and reordered from th -
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Serverless Express by Vendia
Run Node.js web applications and APIs using existing frameworks
Run REST APIs and other web applications using your existing Node.js application framework (Express, Koa, Hapi, Sails, etc.), on top of AWS Lambda and Amazon API Gateway. Vendia is the real-time data cloud for rapidly building applications that securely share data across departments, companies, clouds, and regions. We’re excited to announce the latest release of Vendia Share! This release includes new features like smart contracts, user-level transactions, the beta release of Azure support, and more. We also added a pay-as-you-go pricing plan that gives developers from organizations of any size access to Vendia's enterprise-grade platform for building data-driven, multi-party, cross-cloud apps. If you want to migrate an existing application to AWS Lambda, it's advised to get the minimal example up and running first, and then copy your application source in.
