Open Source JavaScript Software - Page 25
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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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h265web.js
A HEVC/H.265 Web Player
h265web.js is a WebAssembly-powered video decoding library designed to enable playback and processing of H.265/HEVC video streams directly in web browsers without relying on native browser codec support. It provides a low-level decoding API that allows developers to build custom video players capable of handling raw H.265 streams, which are typically not widely supported natively in browsers. The project includes components for parsing H.265 bitstreams into NAL units and decoding them into raw YUV frames that can then be rendered onto a canvas or processed further. Its architecture separates parsing, decoding, and rendering, giving developers fine-grained control over how video data is handled and displayed. The system is designed to work with streaming data, allowing incremental feeding of video chunks and real-time decoding, which is useful for surveillance, streaming platforms, and custom media pipelines. -
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howler.js
Javascript audio library for the modern web
howler.js is an audio library for the modern web. It defaults to Web Audio API and falls back to HTML5 Audio. This makes working with audio in JavaScript easy and reliable across all platforms. Additional information, live demos and a user showcase are available at howlerjs.com. Single API for all audio needs, defaults to Web Audio API and falls back to HTML5 Audio, handles edge cases and bugs across environments, supports all codecs for full cross-browser support, automatic caching for improved performance, control sounds individually, in groups or globally, playback of multiple sounds at once. Easy sound sprite definition and playback, full control for fading, rate, seek, volume, etc. Easily add 3D spatial sound or stereo panning, modular - use what you want and easy to extend. No outside dependencies, just pure JavaScript. As light as 7kb gzipped. -
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hyper(HTML)
A Fast & Light Virtual DOM Alternative
hyperHTML is a lightweight JavaScript rendering library built as a fast alternative to virtual DOM frameworks. It updates the native DOM directly and uses tagged template literals to combine markup with dynamic values. Developers can bind a renderer to an existing element and refresh only the interpolated parts when data changes. The library works with standard DOM nodes, plain JavaScript data structures, custom elements, and object-based style values. It is available for ESM, CommonJS, bundlers, and CDN use, while retaining broad legacy browser support. The project is now in maintenance mode, making it best suited to established applications that value its compact, battle-tested approach. -
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iOS Runtime for NativeScript
NativeScript for iOS using JavaScriptCore
ios-jsc is a JavaScriptCore framework for iOS, utilized by NativeScript to execute JavaScript code within iOS applications. It provides a high-performance JavaScript engine that enables the execution of JavaScript in a native iOS environment. -
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iX Icons
Icon web font library for @siemens/ix
Icon web font library for @siemens/ix. Using icons within your project. You need to install and load styling. -
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magnetW
Magnet link aggregation search
magnetW is based on the rule principle of magnetX , the search results of each magnetic station are uniformly formatted. There is no group in this project, only Github for code hosting and related technical exchanges, and other addresses may be risky, please distinguish carefully. This project is open source and free. There are no collection channels of any kind, such as donations, and no advertising of any kind. If you encounter anything similar to the above situation, please don't believe such advertisements. This application is open source and free, and is only used for crawler technology exchange and learning. The search results are all from the source site, and no responsibility is assumed. The project complies with GNU General Public License v3.0. Online playback is performed in conjunction with the webtorrent desktop version. It needs to be downloaded separately. After clicking the online play, it will jump to webtorrent to add tasks. -
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message-pusher
Build your own message push service, support multiple message push
message-pusher is a lightweight notification service designed to send real-time messages across different channels, enabling developers to deliver alerts, updates, or system events efficiently. The project focuses on simplicity and flexibility, allowing users to configure message delivery without relying on complex infrastructure or heavyweight messaging systems. It supports integration with various notification platforms, making it useful for monitoring systems, automation pipelines, or personal alerting setups. The tool is built to handle asynchronous message delivery, ensuring that notifications are sent reliably even under varying network conditions. Its architecture emphasizes ease of deployment, allowing developers to run it locally or host it in lightweight environments such as containers. Message Pusher is particularly valuable for scenarios where timely communication is critical, such as DevOps monitoring, system health alerts, or workflow automation. -
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node-mssql
Microsoft SQL Server client for Node.js
node-mssql is a Microsoft SQL Server client for Node.js, providing a robust and feature-rich interface for connecting to and interacting with SQL Server databases. -
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pancake
Experimental charting library for Svelte
Pancake is an experimental charting library built for Svelte. It focuses on responsive charts that can work with JavaScript-enhanced behavior while still respecting web-native layout ideas. The project was created for developers who want charts that feel integrated with Svelte components rather than added as a separate heavyweight visualization framework. It supports chart composition through Svelte-style structure, making visual elements easier to reason about inside an application. Pancake is best suited for experiments, prototypes, and Svelte projects that need flexible chart rendering. Its main value is exploring how charting can feel more declarative, responsive, and component-driven in the Svelte ecosystem. -
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ramjet
Morph DOM elements from one state to another with smooth animations
Ramjet is a JavaScript animation library for morphing one DOM element into another. It creates the illusion that interface elements can transform smoothly between different shapes, sizes, and positions. The library works by cloning elements, aligning the target clone over the source, and animating both elements until the transition appears continuous. It is useful for playful UI effects, animated state changes, visual transitions, and experimental web interactions. Ramjet can be applied to normal DOM elements and their children, which makes it more flexible than simple CSS transitions alone. Its main value is giving web developers an easy way to create cartoon-like transformation effects between separate elements on a page. -
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react-big-calendar
gcal/outlook like calendar component
An events calendar component built for React and made for modern browsers (read: IE10+) and uses flexbox over the classic tables-ception approach. Styles can be found at: react-big-calendar/lib/css/react-big-calendar.css, and should be included on the page with the calendar component. Also make sure that your calendar's container element has a height, or the calendar won't be visible. Date internationalization and localization is hard and react-big-calendar doesn't even attempt to solve that problem. Instead you can use one of the many excellent solutions already out there, via adapters called "localizers". Big Calendar comes with two localizers for use with Globalize.js or Moment.js. Choose the localizer that best suits your needs, or write your own. Whatever you do, you'll need to set it up before you can use the calendar (you only need to set it up once). -
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rest.js
GitHub REST API client for JavaScript
GitHub REST API client for JavaScript. Import the Octokit constructor based on your platform. Instantiate your octokit API. All options are optional, but authentication is strongly encouraged. API Previews can be enabled globally by setting the previews option. They can be set per-request as well. A default time zone can be enabled by setting the timeZone option. In order to use Octokit with GitHub Enterprise, set the baseUrl option. Most of GitHub’s REST API endpoints have matching methods. All endpoint methods are asynchronous, in order to use await in the code examples, we wrap them into an anonymous async function. Authentication is optional for some REST API endpoints accessing public data, but is required for GraphQL queries. Using authentication also increases your API rate limit. -
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sharp
High performance Node.js image processing module
The typical use case for this high speed Node.js module is to convert large images in common formats to smaller, web-friendly JPEG, PNG, AVIF and WebP images of varying dimensions. Resizing an image is typically 4x-5x faster than using the quickest ImageMagick and GraphicsMagick settings due to its use of libvips. Colour spaces, embedded ICC profiles and alpha transparency channels are all handled correctly. Lanczos resampling ensures quality is not sacrificed for speed. As well as image resizing, operations such as rotation, extraction, compositing and gamma correction are available. Most modern macOS, Windows and Linux systems running Node.js v10+ do not require any additional install or runtime dependencies. This module supports reading JPEG, PNG, WebP, AVIF, TIFF, GIF and SVG images. Output images can be in JPEG, PNG, WebP, AVIF and TIFF formats as well as uncompressed raw pixel data. Streams, Buffer objects and the filesystem can be used for input and output. -
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simbol
Communications platform WebXR sites with self-sovereign identity
Easily create social virtual worlds that anyone can interact with using Virtual Personas, a global identity system where people own their identities. Simbol accepts several configuration parameters. New worlds await us with VR and AR. A flourishing of creativity. This must happen without conceding in user experience and with an honest contract between creators and consumers regarding their data. Simbol is researching to accomplish these goals and broadcasting accomplishments made by the community via a podcast, blog and newsletter. Currently, simbol is dependent on several third-party libraries. You can check out the API in our JSDoc. -
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simple-peer
Simple WebRTC video, voice, and data channels
simple-peer is a lightweight JavaScript library that simplifies peer-to-peer WebRTC connections for real-time communication directly between browsers and devices. The project abstracts away much of the complexity of the native WebRTC API, allowing developers to establish audio, video, and data channels with minimal configuration. It supports direct peer communication without requiring heavy signaling infrastructure beyond the initial connection exchange. simple-peer is commonly used in browser-based chat applications, multiplayer games, collaborative tools, decentralized systems, and streaming platforms. The library works in both browser and Node.js environments, enabling flexible peer-to-peer networking architectures across platforms. Its streamlined API and low setup overhead have made it one of the most popular developer-friendly wrappers around WebRTC functionality. -
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smart rtmpd
Multi-system-supported and easy-to-maintain streaming media server
smart_rtmpd is a high-performance streaming media server designed for live and recorded video delivery across multiple protocols and platforms. It supports both push and pull streaming, enabling flexible workflows for ingesting and distributing media. The server is designed to be lightweight and easy to deploy, requiring minimal configuration and no external dependencies. It supports a wide range of protocols including RTMP, HLS, DASH, RTSP, and WebRTC, making it suitable for diverse streaming environments. The system is built with scalability in mind, supporting clustering and cascading setups for large-scale deployments. It also includes features such as authentication, logging, and remote configuration through web interfaces. Overall, it provides a powerful yet simple solution for building streaming infrastructure. -
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term.js
A terminal written in javascript
term.js is a full xterm-style terminal emulator written in JavaScript. It was designed to bring interactive terminal behavior into the browser and was used by tty.js for web-based terminal sessions. The project includes server and client examples that connect browser terminal input and output through sockets. It supports terminal dimensions, screen keys, title events, terminal writing, data events, destruction on disconnect, and familiar xterm behavior. It also includes keyboard-driven tmux-like selection and copy-paste workflows in addition to mouse selection. The repository is no longer maintained, but it remains an important reference for browser terminal emulation and early JavaScript terminal UI work. -
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tty.js
A terminal for your browser, using node/express/socket.io
tty.js is a browser-based terminal application built with Node.js, Express, and Socket.IO. It lets users access terminal sessions through a web interface instead of a local terminal window. The project supports tabs, stacking windows, maximizable terminal panes, and persistent sessions. It can efficiently render command-line programs such as Vim, mc, irssi, vifm, and other interactive terminal tools. It also supports optional Screen or tmux-style keys, xterm mouse events, and 256-color output. tty.js is useful as a legacy reference for web terminal design, remote shell interfaces, socket-driven terminal rendering, and Node-based terminal server experiments. -
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ttystudio
A terminal-to-gif recorder minus the headaches
ttystudio is a terminal-to-GIF recorder built to capture command-line sessions without the usual external tooling headaches. It can record a terminal session and compile the result into a GIF or APNG using its own built-in writers. The project avoids dependencies such as ImageMagick, ffmpeg, shell scripts, and frame concatenation workflows. It records terminal frames through a pseudo-terminal, renders text using parsed bitmap fonts, and writes the animation directly from captured frame data. Users can record and compile in one step or save frames to JSON for later replay and editing. It also supports frame ranges, custom delays, borders, screenshot mode, custom quit keys, logging options, and APNG palette controls. -
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tus-js-client
A pure JavaScript client for the tus resumable upload protocol
tus-js-client is a JavaScript client for the tus resumable upload protocol, enabling reliable and efficient file uploads, especially for large files or unstable network conditions. -
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uMatrix
Point and click matrix to filter net requests according to source
Definitely for advanced users. uMatrix does not guarantee that sites will work fine: it is for advanced users who can figure how to un-break sites, because essentially uMatrix is a firewall which works in relaxed block-all/allow-exceptionally mode out of the box: it is not unexpected that sites will break. uMatrix can be set to work in allow-all/block-exceptionally mode with a single click on all cells in the global scope if you prefer to work this way. This will of course break fewer sites, but you would then lose all the benefits which come with block-all/allow-exceptionally mode, though you will still benefit from the 62,000+ blacklisted hostnames by default. HTTP Switchboard's documentation is still relevant, except for uMatrix's differences with HTTP Switchboard. -
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videoshow
Simple node.js utility to create video slideshows from images
videoshow is a Node.js utility designed to create video slideshows from a sequence of images using FFmpeg as its processing engine. It allows developers to programmatically generate videos by combining images with optional audio tracks, subtitles, and visual transitions. The tool supports customization of parameters such as frame rate, resolution, bitrate, and codecs, enabling flexible output configurations. It includes both a programmatic API and a command-line interface, making it adaptable for different workflows. videoshow processes media efficiently and is used in production environments to generate large volumes of videos automatically. It also provides event hooks for monitoring progress and handling errors during rendering. Overall, it simplifies slideshow video creation while retaining the power of FFmpeg. -
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volkswagen
Volkswagen detects when your tests are being run in a CI server
Volkswagen is a satirical Node.js package that deliberately interferes with automated tests when it detects a continuous integration environment. It was inspired by Volkswagen's emissions-testing scandal and applies the same “defeat device” idea to software testing. Once required by a project, it detects CI environments and alters failing test behavior so builds appear successful. It recognizes services such as Travis CI, CircleCI, Jenkins, GitLab CI, AppVeyor, Buildkite, and other systems exposing common CI variables. The package can affect tests that fail through thrown errors or nonzero exit codes. It works with testing libraries including assert, tap, tape, and Chai. The project is a programming joke and demonstration rather than a legitimate testing practice. -
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whs.js
Super-fast 3D framework for Web Applications
whs is currently at v2 major version. We had plans for v3 yet but development isn't active. So v2 will probably remain the main stable version until further notice. We try to publish minor update releases for bug fixes, we will review PRs. Download the minified library or link the one from CDN. Simple integration of any high-performance physics even with Worker (Multithreading). Integrated Three.js rendering engine. Work with whs.js and Three.js at the same time. -
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webERP Accounting & Business Management
Accounting & Best Practice Business Administration System
Entirely web-based. It is coded in efficient PHP to present a very low overhead on hardware presenting screens fast & capable of working over low bandwidth connections. Now with HTML 5 & javascript form validation & table sorting. Mature codebase with a wealth of features: - Multi-currency - Multi-inventory location - Serial and Lot tracking inventory - Full double entry general ledger - Weighted Average or Standard Costing - Manufacturing works orders - Material Requirements Planning - Shipment costing - Contract/job costing - Fixed asset management - Sales Analysis - Expense claims - Can be integrated with an number of 3rd party wikis Particularly suited to wholesale, distribution, manufacturing and now also as the hub for multi-branch retail businesses (with an external deskop POS add-on). Translations into over 20 Languages. Easily modifiable code, written using simple and accessible PHP for ease of maintenance and understanding. Reporting direct to UTF-8 PDF
