Open Source 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.

  • PRTG Catches Network Issues Before They Cause Downtime Icon
    PRTG Catches Network Issues Before They Cause Downtime

    Threshold-based alerts flag problems early, so your team can act before users notice, not after.

    Reactive troubleshooting usually means hearing about a problem from frustrated users, not your monitoring tool. PRTG sets threshold-based alerts across devices, servers and applications, notifying your team by email, SMS or push the moment a metric crosses a set limit. That means catching a failing disk or overloaded server before it becomes an outage and getting time back from firefighting. Start a free trial and set your first alerts today.
    Download 30-Day Trial
  • Build Agents and Models on One Platform Icon
    Build Agents and Models on One Platform

    Everything you need to build production-ready agents and models. Access 200+ Google and third-party AI models and tools.

    Gemini Enterprise Agent Platform is Google Cloud's comprehensive platform for developers to build, scale, govern, and optimize agents and models. Choose from Google's most advanced models and third-party models like Anthropic's Claude Model Family.
    Start Free
  • 1
    PairDrop

    PairDrop

    PairDrop, Transfer Files Cross-Platform

    PairDrop is a self-hosted, open-source alternative to Apple's AirDrop, allowing users to share files between devices over the same local network without the need for an internet connection.
    Downloads: 79 This Week
    Last Update:
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  • 2
    YTM Desktop - YouTube Music Desktop App

    YTM Desktop - YouTube Music Desktop App

    A Desktop App for YouTube Music

    Free cross-platform Desktop Player for YouTube Music. Play, Pause, Stop, Previous, Next. Show/Hide window after double pressing the global play/pause media button. Show notification on track change. Media controls are embedded into the taskbar - ( for Windows ). Background music playing. Minimize the taskbar. See the lyrics of your favorite music. Settings to your choice. One-click and, done. You will be surprised at how easy it is. Always updated with the latest version. Control your music easily. Control media playback. Have music queue information. Lyrics in your hands. Share, add to your library, and add to playlists.
    Downloads: 73 This Week
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  • 3
    armorpaint

    armorpaint

    3D PBR Texture Painting Software

    ArmorPaint is stand-alone software designed for physically-based texture painting. Drag & drop your 3D models and start painting. Receive instant visual feedback in the viewport as you paint. Work fast with the convenience of nodes. Paint with fully procedural materials. Build fill layers with material nodes. Use brush nodes to create patterns and procedural brushes. ArmorPaint is designed from scratch to run completely on the GPU. This results in a smooth 4K painting experience on medium-power integrated hardware. Up to 16K texture painting is seamless using a high-end graphics card. Ray-traced baking, painting effects and viewport rendering feature running on Direct3D12 and Vulkan are in progress. ArmorPaint is powered by an in-house 3D rendering engine to achieve the best painting experience.
    Downloads: 69 This Week
    Last Update:
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  • 4
    OpenMTP

    OpenMTP

    Advanced Android File Transfer Application for macOS

    Transferring files between macOS and Android or any other MTP device has always been a nightmare. There are a few File Transfer MTP apps that are available online but most of them are either too expensive or come with bad UI/UX. The official "Android File Transfer" app for macOS from Google comes with bugs, and innumerable limitations, some of which include - not being able to transfer files larger than 4GB, frequent disconnections, unable to rename the folders or files on the android/MTP devices. Most of the other apps available online use either WiFi or ADB protocol to transfer the files, which is an extremely time-consuming process. Countless searches to find an app to solve these problems and failing to find one made me restless. So, I took the leap and decided to create an app for us that could help us have a smooth and hassle-free file transfer process from macOS to Android/MTP devices.
    Downloads: 62 This Week
    Last Update:
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  • MongoDB Atlas runs apps anywhere Icon
    MongoDB Atlas runs apps anywhere

    Deploy in 115+ regions with the modern database for every enterprise.

    MongoDB Atlas gives you the freedom to build and run modern applications anywhere—across AWS, Azure, and Google Cloud. With global availability in over 115 regions, Atlas lets you deploy close to your users, meet compliance needs, and scale with confidence across any geography.
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  • 5
    Kiwix

    Kiwix

    Wikipedia offline & more

    Kiwix is an offline reader for Web content. It's especially intended to make Wikipedia available offline. With Kiwix, you can enjoy Wikipedia on a boat, in the middle of nowhere... or in Jail. Kiwix manages to do that by reading ZIM files, a highly compressed open format with additional meta-data.
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    Downloads: 183 This Week
    Last Update:
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  • 6
    pkg

    pkg

    Package your Node.js project into an executable

    This command line interface enables you to package your Node.js project into an executable that can be run even on devices without Node.js installed. Make a commercial version of your application without sources. Make a demo/evaluation/trial version of your app without sources. Instantly make executables for other platforms (cross-compilation). Make some kind of self-extracting archive or installer. No need to install Node.js and npm to run the packaged application. No need to download hundreds of files via npm install to deploy your application. Deploy it as a single file. Put your assets inside the executable to make it even more portable. Test your app against new Node.js version without installing it. pkg was created for use within containers and is not intended for use in serverless environments. For those using ZEIT Now, this means that there is no requirement to use pkg in your projects as the benefits it provides are not applicable to the platform.
    Downloads: 36 This Week
    Last Update:
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  • 7
    Shaka Player

    Shaka Player

    JavaScript player library / DASH & HLS client / MSE-EME player

    Shaka Player is an open-source JavaScript library for adaptive media. It plays adaptive media formats (such as DASH and HLS) in a browser, without using plugins or Flash. Instead, Shaka Player uses the open web standards MediaSource Extensions and Encrypted Media Extensions. Shaka Player also supports offline storage and playback of media using IndexedDB. Content can be stored on any browser. Storage of licenses depends on browser support. Our main goal is to make it as easy as possible to stream adaptive bitrate video and audio using modern browser technologies. We try to keep the library light, simple, and free from third-party dependencies. Everything you need to build and deploy is in the sources. We support iOS 12+ through Apple's native HLS player. We provide the same top-level API, but we just set the video's src element to the manifest/media. So we are dependent on the browser supporting the manifests.
    Downloads: 28 This Week
    Last Update:
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  • 8
    ESP32-S2-Mini

    ESP32-S2-Mini

    Arduino ESP32-S2-Mini v1.00 Wemos | Firmware PS4 900x HOST Wifi AP

    Firmware para placa de desarrollo Arduino ESP32-S2 Mini v1.0.0 LOLIN-WIF WEMOS ESP32S2 Dev para Montar Servidor Host AP PlayStation 4 Herramienta web para instalar la última versión del Firmware: https://xdevgms.github.io/ Una vez instalado el firmware podrá conectar con la placa ESP32-S2 Mini vía Wifi WiFi SSID: PS4-Host-AP Password: password Página del administrador http://10.1.1.1/admin.html http://webkey.local/admin.html Nota Importante 1: En la sección configuración General en Conexión WIFI marcar la casilla INICIAR WIFI: y conectar a su wifi local para poder administrar desde una PC, Así podrá subir archivos, borrarlos y Actualizar el Firmware de la placa Nota Importante 2: La herramienta Web https://xdevgms.github.io/ solo la necesita cuando su placa ESP32-S2 este vacía, es decir, sin ningún firmware, luego que cargue este firmware, no volverá a necesitarla y para actualizar solo requerirá descargar la última versión fwupdate_webkey.bin Información
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    Downloads: 207 This Week
    Last Update:
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  • 9
    Telegram Media Downloader

    Telegram Media Downloader

    Download media files from a telegram conversation/chat/channel

    Download media files from a telegram conversation/chat/channel up to 2GiB per file.
    Downloads: 24 This Week
    Last Update:
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  • Build Data Resilience - Take the Assessment Today Icon
    Build Data Resilience - Take the Assessment Today

    Can you recover when it matters most? Take this quick assessment to identify gaps and build greater recovery confidence.

    Is your recovery strategy as strong as you think? Take this quick self-assessment to check your recovery readiness and gain tailored insights. In only 2 minutes, you'll learn where you fall on the recovery readiness scale.
    Take the Assessment
  • 10
    noVNC

    noVNC

    VNC client web application

    noVNC is a VNC client JavaScript library as well as an application built on top of that library. noVNC runs well in any modern browser, including mobile browsers (iOS and Android).
    Downloads: 22 This Week
    Last Update:
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  • 11
    Joplin

    Joplin

    Open source note taking and to-do app with synchronization

    Joplin is a free and open source note-taking and to-do application that can handle a large number of notes in Markdown format, organize them into notebooks and synchronize them with various cloud services. All notes can also be copied, tagged, searched and modified directly from the app or through your own text editor. Notes that are exported from Evernote can be imported into Joplin, be it formatted content, resources, complete metadata or plain Markdown files. When notes are synchronized with cloud services, notebooks, tags and other metadata can easily be moved, inspected or backed up as plain text files. Supported cloud services include Nextcloud, OneDrive, Dropbox and WebDAV. Joplin is available for Windows, Linux, macOS, iOS and Android, with three types: desktop, mobile and terminal. All of them have similar user interfaces and can be synchronized with each other.
    Downloads: 20 This Week
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  • 12
    DPlayer

    DPlayer

    An HTML5 danmaku video player

    DPlayer is a lovely HTML5 danmaku video player to help people build video and danmaku easily. DPlayer is an MIT licensed open source project and completely free to use. However, the amount of effort needed to maintain and develop new features for the project is not sustainable without proper financial backing. Video events supported include abort, canplay, canplaythrough, durationchange, emptied, ended, error, loadeddata, loadedmetadata, loadstart, mozaudioavailable, pause, play, playing, progress, ratechange, seeked, seeking, stalled, suspend, timeupdate, volumechange, and waiting. Player events include screenshot, thumbnails_show, thumbnails_hide, danmaku_show, danmaku_hide, danmaku_clear, danmaku_loaded, danmaku_send, danmaku_opacity, contextmenu_show, contextmenu_hide, notice_show, notice_hide, quality_start, quality_end, destroy, resize, fullscreen, fullscreen_cancel, webfullscreen, webfullscreen_cancel, subtitle_show, subtitle_hide, and subtitle_change.
    Downloads: 15 This Week
    Last Update:
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  • 13
    Leaflet

    Leaflet

    Open-source JavaScript library for mobile-friendly interactive maps

    Leaflet is a leading open source JavaScript library for creating interactive, mobile-friendly maps. Leaflet is light at just about 38 KB, but is already fully equipped with all the mapping features you could need. Leaflet is simple but efficient. It doesn’t try to do everything for everybody, rather it focuses on making the basic things work perfectly. It comes ready with exceptional layering tools, customization features such as pure CSS3 popups and controls, map controls and more right out of the box, and works on all major desktop and mobile platforms. Leaflet also comes with a range of interaction features, and can be extended with an abundance of great plugins.
    Downloads: 14 This Week
    Last Update:
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  • 14
    ytDownloader

    ytDownloader

    Desktop App for downloading Videos and Audios from hundreds of sites

    ytDownloader is a modern desktop application designed to download videos and extract audio from hundreds of online platforms through a clean graphical user interface. Built as a cross-platform tool for Windows, macOS, and Linux, it leverages tools like yt-dlp and FFmpeg under the hood while abstracting their complexity into an intuitive user experience. The application supports downloading from major platforms such as YouTube, Facebook, TikTok, Instagram, Twitch, and Twitter, offering users the ability to retrieve content in multiple formats and resolutions including MP4, MP3, and WebM. It includes advanced features such as playlist downloading, subtitle extraction, and range selection for partial downloads, making it useful for both casual users and power users. Additionally, ytDownloader incorporates hardware-accelerated video compression, multiple UI themes, and localization support, enhancing both performance and usability.
    Downloads: 10 This Week
    Last Update:
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  • 15
    X-UI

    X-UI

    Lightweight Xray panel with multi-protocol and multi-user

    The xray panel supports single-end multi-user and multi-protocol. Monitor and manage your agency services conveniently and quickly through free Telegram bot.
    Downloads: 7 This Week
    Last Update:
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  • 16
    FreeWRL VRML/X3D browser
    FreeWRL is an Open Source, cross platform VRML2 and X3D compliant browser, with script, SAI and EAI support. Platforms supported: Linux and other Unix-style platforms; Mac OS/X; Windows. Support for mobile platforms (iOS, Android, QNX) is under development.
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    Downloads: 40 This Week
    Last Update:
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  • 17
    Tutanota

    Tutanota

    Open source email service with a strong focus on security and privacy

    Tutanota is an open source email client focused on security and privacy. It is built with end-to-end encryption and 2FA, so you can be assured of utmost email security. Tutanota is always encrypted, so whether you’re using their secure webmail client, mobile apps or desktop clients, you can be sure to communicate securely.
    Downloads: 6 This Week
    Last Update:
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  • 18
    FastClick

    FastClick

    Easy-to-use library to remove click delays on browsers with touch UIs

    FastClick is a simple, easy-to-use library for eliminating the 300ms delay between a physical tap and the firing of a click event on mobile browsers. The aim is to make your application feel less laggy and more responsive while avoiding any interference with your current logic. FastClick is developed by FT Labs, part of the Financial Times. Note: As of late 2015 most mobile browsers - notably Chrome and Safari - no longer have a 300ms touch delay, so fastclick offers no benefit on newer browsers, and risks introducing bugs into your application. Consider carefully whether you really need to use it. The library has been deployed as part of the FT Web App. FastClick doesn't attach any listeners on desktop browsers.
    Downloads: 4 This Week
    Last Update:
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  • 19
    Openbravopos

    Openbravopos

    Open Source Openbravo POS convert to Commercial Retail ERP and POS

    Complete and user-friendly retail POS functionality A comprehensive, flexible, and user-friendly cloud-based retail POS software. 1. Sales, quotations, reservations, and returns, including cross-store and cross-channel scenarios. 2. Automatic validation of customer personal data. 3. Configuration of keymaps for quick access to options and featured products. https://www.youtube.com/watch?v=Aai3iYLP2TQ&pp=ygUNb3BlbmJyYXZvIGtkcw%3D%3D Contact: both version of Openbravo POS osopenbravo@gmail.com Join Our Channel: https://whatsapp.com/channel/0029Vavg10ZIXnlvG5dUDu0x
    Downloads: 50 This Week
    Last Update:
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  • 20
    Calibre-Web Automated

    Calibre-Web Automated

    Calibre-Web but Automated and with tons of New Features

    Calibre-Web-Automated (CWA) is an all-in-one, self-hosted solution for managing an ebook library that combines the modern, lightweight web UI style of Calibre-Web with the deeper tooling and conversion capabilities associated with Calibre. The goal is to reduce the common “two-service” setup where users run Calibre-Web for browsing and Calibre separately for conversions, metadata fixes, and automation, by packaging those workflows together in a single system. CWA keeps the familiar strengths of Calibre-Web, like a responsive interface, OPDS feeds for e-readers, and strong user/permission management, while layering in extensive automation features that handle ingest, conversion, metadata enforcement, and library organization with less manual effort. It also expands authentication options (including modern OAuth/OIDC flows) and adds quality-of-life improvements such as enhanced search/filtering, multi-language UI support, and better device-centric workflows for sending to e-readers.
    Downloads: 3 This Week
    Last Update:
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  • 21
    OpenNMS

    OpenNMS

    A Java based fault and performance management system

    An Enterprise-Grade Network Management Application Platform that is 100% Free and Open Source Software.
    Downloads: 11 This Week
    Last Update:
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  • 22
    Countly

    Countly

    Product analytics platform

    Understand and enhance your customers' journey on your web, mobile or desktop application through Countly. Countly is an innovative, real-time, open source mobile & web analytics platform, with rich push notifications and crash reporting tools. Countly securely processes billions of data points every day from mobile, desktop and web apps to help thousands of companies visualize their data, analyze and use it to grow their business. Countly is made up of two main parts: the server collecting and analyzing data, and an SDK (mobile, web or desktop) that sends this data. It comes with several great features: a single secure dashboard where you can access all user profiles, notifications, analytics and other tools; a wealth of plugins; and the option to install Countly on premises or securely in the cloud. Countly is being used by numerous companies the world over, including Apple, AT&T, BMW, SAP, Coca Cola, Sprint and many more.
    Downloads: 2 This Week
    Last Update:
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  • 23

    WebVisu

    Pure Browser based Visualisation for PLCs

    Framework to enable PLC Visualisations (like Wago 750-841, Beck IPC, CoDeSys 2.3) displayed in a standalone Browser without Java applets. Including Browsers of iPad, iPhone, iPod, Android aso.. Based on HTML5 canvas and Javascript.
    Downloads: 9 This Week
    Last Update:
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  • 24
    StrongKey FIDO Server (SKFS)

    StrongKey FIDO Server (SKFS)

    FIDO® Certified StrongKey FIDO Server (SKFS)

    An open source implementation of the FIDO2 protocol to support passwordless strong authentication using public-key cryptography. Supports registration, authentication (all platforms), and transaction authorization (for native Android apps).
    Downloads: 44 This Week
    Last Update:
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  • 25
    AlterSend

    AlterSend

    Send files directly between devices over the internet with no limits

    Send files between your devices without the cloud. AlterSend transfers files directly from one device to another — no uploads, no servers, no accounts, no size limits. Whether you're sending a 5 MB photo or a 500 GB video archive, the experience is the same: pick a file, share a short code, and your file moves straight from your device to theirs. Every transfer is end-to-end encrypted. Files never touch a server. There's nothing to sign up for and nothing stored in the cloud after you're done. HOW IT WORKS 1. Open AlterSend on the sending device and pick your files. 2. Share the short join code (or QR) with the receiving device. 3. The other device enters the code, and the transfer starts. 4. Files move directly, peer-to-peer, encrypted end-to-end. It works on the same Wi-Fi network and across the internet — same code, same speed, no setup. If both devices are on the same network, transfers happen at LAN speed.
    Downloads: 42 This Week
    Last Update:
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