Browse free open source JavaScript Video Software and projects below. Use the toggles on the left to filter open source JavaScript Video Software by OS, license, language, programming language, and project status.

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  • 1
    LosslessCut

    LosslessCut

    The swiss army knife of lossless video/audio editing

    LosslessCut aims to be the ultimate cross platform FFmpeg GUI for extremely fast and lossless operations on video, audio, subtitle and other related media files. The main feature is lossless trimming and cutting of video and audio files, which is great for saving space by rough-cutting your large video files taken from a video camera, GoPro, drone, etc. It lets you quickly extract the good parts from your videos and discard many gigabytes of data without doing a slow re-encode and thereby losing quality. Or you can add a music or subtitle track to your video without needing to encode. Everything is extremely fast because it does an almost direct data copy, fueled by the awesome FFmpeg which does all the grunt work. Lossless merge/concatenation of arbitrary files (with identical codecs parameters, e.g. from the same camera). Lossless stream editing: Combine arbitrary tracks from multiple files (ex. add music or subtitle track to a video file).
    Downloads: 712 This Week
    Last Update:
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  • 2
    YouTube Music

    YouTube Music

    YouTube Music Desktop App bundled with custom plugins

    Open source, cross-platform, unofficial YouTube Music Desktop App with built-in ad blocker and downloader. Native look & feel, aims at keeping the original interface. Framework for custom plugins: change YouTube Music to your needs (style, content, features), enable/disable plugins in one click. Install the youtube-music-bin package from the AUR. For AUR installation instructions, take a look at the wiki page. Block all ads and tracking out of the box. Apply compression to audio (lowers the volume of the loudest parts of the signal and raises the volume of the softest parts) Next/Back navigation arrows directly integrated in the interface, like in your favorite browser. Allows setting global hotkeys for playback (play/pause/next/previous) + disable media osd by overriding media keys + enable Ctrl/CMD + F to search + enable Linux mpris support for media keys + custom hotkeys for advanced users.
    Downloads: 199 This Week
    Last Update:
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  • 3

    Udeler

    Udemy Course Downloader (GUI)

    Udeler is an open source, cross-platform desktop application for downloading Udemy Courses. It makes viewing and learning from Udemy Courses a lot easier by downloading the courses to your desktop, allowing you to view them conveniently offline and at your own pace. Udeler downloads Udemy Courses straight to your Downloads folder, keeping the original structure of course content intact. It works a lot like most other download managers, but Udeler automates this process when downloading Udemy Courses. It also allows you to do other things, such as select your preferred video quality, download several courses at once, choose download directory and more.
    Downloads: 66 This Week
    Last Update:
    See Project
  • 4
    Video Speed Controller

    Video Speed Controller

    HTML5 video speed controller (for Google Chrome)

    Video Speed Controller is a browser extension that gives users precise control over HTML5 video and audio playback. It works across many websites instead of depending on the controls offered by each individual player. Users can raise or lower playback speed, rewind, skip forward, reset the rate, and jump between a current and preferred speed. Its configurable range supports both unusually slow playback and speeds far beyond the limits of most media sites. The extension can remember settings, enforce a chosen rate when a site tries to change it, and apply rules by domain. A movable on-screen indicator keeps the current speed visible without replacing the original player. Custom keyboard shortcuts and CSS make the controller adaptable to different workflows and page layouts.
    Downloads: 22 This Week
    Last Update:
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  • 5
    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: 16 This Week
    Last Update:
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  • 6
    Lite YouTube Embed

    Lite YouTube Embed

    A faster youtube embed

    Lite YouTube Embed is a lightweight custom element that replaces the standard YouTube iframe with a much faster placeholder until a user interacts with it. It is built for websites that need embedded YouTube videos without the heavy performance cost of loading the full player immediately. The component visually behaves like a normal YouTube embed, but it delays loading expensive iframe resources until playback is requested. Developers can install it from npm or use the source files directly in a project. It supports progressive enhancement, custom poster images, visible titles, YouTube player parameters, and access to the YouTube Iframe Player API. It is especially useful for performance-focused websites, landing pages, blogs, documentation sites, and media-heavy pages where faster loading improves the user experience.
    Downloads: 16 This Week
    Last Update:
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  • 7
    Velox Download Manager

    Velox Download Manager

    A multi-threaded, cross-platform download manager

    Velox — Segmented Download Manager Velox is a fast, modern, open-source download manager for desktop (macOS / Windows / Linux). Built with Tauri 2 + Rust and a React/Tailwind UI, it downloads files dramatically faster than a browser by splitting each file into parallel byte-range segments and fetching them simultaneously — the same technique used by IDM. Features - Segmented downloading — splits files into up to 32 parallel connections and assembles them byte-perfectly. Tune the connection count per download or globally. - Pause / resume— pause any download and pick it back up exactly where it left off, byte-for-byte (works on any server that supports HTTP byte ranges). - Crash-safe resume— Velox writes your progress to disk every few seconds with atomic writes, so an app crash, power loss, or reboot never costs you your progress. In-progress downloads are auto-resumed on launch. - Download history — every download is recorded in a local SQLite database
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    Downloads: 345 This Week
    Last Update:
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  • 8
    OpenShorts

    OpenShorts

    Free & open source AI video platform

    OpenShorts is an open-source, self-hosted AI video automation platform designed to generate, edit, and distribute short-form vertical content across social media platforms. It combines multiple tools into a single pipeline, including clip generation, AI-driven video creation, and YouTube optimization features. The system can transform long videos or uploaded files into short clips by detecting engaging moments, reframing content, and adding subtitles and visual effects. It also supports generating marketing videos using AI actors, voiceovers, and scripted narratives without requiring cameras or production resources. The platform integrates publishing capabilities, allowing users to distribute content directly to TikTok, Instagram, and YouTube. Its architecture uses modern technologies such as FastAPI, FFmpeg, and AI models for transcription, analysis, and rendering. Designed for creators and businesses, it automates the entire lifecycle of short-form video production.
    Downloads: 11 This Week
    Last Update:
    See Project
  • 9
    Plyr

    Plyr

    Simple HTML5, YouTube and Vimeo player

    A simple, accessible and customizable media player for HTML5 Video, HTML5 Audio, YouTube and Vimeo. Premium video monetization from Video Intelligence. Plyr is a simple, lightweight, accessible and customizable HTML5, YouTube and Vimeo media player that supports modern browsers. Accessible - full support for VTT captions and screen readers. Customizable - make the player look how you want with the markup you want. Responsive - works with any screen size. Monetization - make money from your videos. Streaming - support for hls.js, Shaka and dash.js streaming playback. API - toggle playback, volume, seeking, and more through a standardized API. Events - no messing around with Vimeo and YouTube APIs, all events are standardized across formats. Fullscreen - supports native fullscreen with fallback to "full window" modes. Picture-in-Picture - supports picture-in-picture mode. Multiple captions - support for multiple caption tracks.
    Downloads: 11 This Week
    Last Update:
    See Project
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  • 10
    YouTube Center

    YouTube Center

    Userscript designed to expand the functionality of YouTube

    YouTube Center is a userscript designed to expand the functionality of YouTube. It includes the ability to download the video you're watching, auto-selecting your preferred video quality and much more. YouTube Center is an extension for the browser that will enhance the experience on YouTube by adding tons of new and useful features. YouTube Center is a userscript designed to expand the functionality of YouTube. It includes the ability to download the video you're watching, auto selecting your preferred video quality and much more. We highly reccomend using DEV builds, as the stable build is nearly a year old, and much of its functionality is now broken. YouTube Center is available as the following extensions: Userscript, Firefox, Chrome, Opera, Safari and Maxthon. YouTube Center supports multiple languages. Your default language is automatically selected at default if it's available otherwise it will default to English.
    Downloads: 7 This Week
    Last Update:
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  • 11
    CamDesk

    CamDesk

    The Desktop Webcam Widget

    CamDesk is a free, open source, desktop webcam widget, that was created as home surveillance application. Although others have used it for demonstrations even with CamStudio, and QuickTime Player for screen casting.
    Downloads: 51 This Week
    Last Update:
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  • 12
    Playback

    Playback

    Video player built using electron and node.js

    playback is another project by the same author, aimed at simplifying media playback of streaming sources in JavaScript/Node.js contexts. The goal of Playback is to act as a thin wrapper or abstraction layer that eases the task of launching and controlling a media player from code or CLI, perhaps integrating with torrent-based streaming (e.g. from peerflix) or other streaming sources. The library provides programmatic controls over launching playback, passing custom options or arguments, and managing process lifecycle — making it useful for scripts, automation, or tooling where you need to play media without manually wiring up system calls. Playback can be especially handy when building applications that need to fetch media dynamically (from network, torrent, or remote URL) and immediately play it, without requiring the user to manually download, open, and configure a media player themselves.
    Downloads: 4 This Week
    Last Update:
    See Project
  • 13
    ZY Player

    ZY Player

    ZY Player repository

    Cross-platform desktop video resource player. Simple and ad-free. Free and high-value. Full platform support. Windows, Mac, Linux. All resources are from the Internet, the software does not participate in any production, uploading, storage, etc., and the dissemination of illegal resources is prohibited. This software is for learning reference only, please delete it within 24 hours after installation. Play history, and automatically jumps to history progress. Favorites support import, export, support for synchronous drama. Support simplified mode, fish, and paddle. Search all resources with one click, and support historical search records. Export resource download link. Support third-party players to play. Show Douban ratings.
    Downloads: 4 This Week
    Last Update:
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  • 14
    YehDown

    YehDown

    Yeahdown: Easy-to-use video downloader for Windows

    Yeahdown is a straightforward, user-friendly Windows-based application designed to simplify the process of downloading videos and audio from popular websites like YouTube and Vimeo. Perfect for non-technical users, it offers an intuitive interface and fast, reliable downloads. Key features include improved download speeds, support for multiple major video platforms, and real-time updates for new features. Tested on windows 11.
    Downloads: 77 This Week
    Last Update:
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  • 15
    Whammy

    Whammy

    A real time javascript webm encoder based on a canvas hack

    Whammy is a lightweight JavaScript encoder for generating WebM video directly in the browser. It exploits the relationship between WebP image frames and the VP8 codec used by WebM. Developers can add canvas elements, canvas contexts, or encoded image data as individual video frames. Frame rate can be defined globally, while individual frame durations can also be specified. Encoding happens when the collected frames are compiled, producing a Blob that can be displayed or saved as WebM content. The implementation is small and fast for client-side use, although its intraframe-only approach lacks the file-size efficiency of full interframe video compression.
    Downloads: 2 This Week
    Last Update:
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  • 16
    handbrake-js

    handbrake-js

    Video encoding / transcoding / converting for node.js

    handbrake-js is a Node.js wrapper around the HandBrake CLI tool, designed to bring powerful video transcoding capabilities into JavaScript applications. It provides a programmatic interface for converting video files from nearly any format into modern codecs using HandBrake’s encoding engine. The library allows developers to build automation workflows for media processing without directly interacting with command-line tools. It supports multiple output formats such as MP4 and MKV and includes compatibility across major operating systems. handbrake-js relies on an installed HandBrakeCLI binary and exposes its functionality through asynchronous JavaScript APIs. It is commonly used in backend services and automation pipelines that require reliable video conversion. Overall, it serves as a bridge between HandBrake’s capabilities and Node.js environments.
    Downloads: 2 This Week
    Last Update:
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  • 17
    CCapture.js

    CCapture.js

    A library to capture canvas-based animations at a fixed framerate

    CCapture.js is a JavaScript library designed to capture high-quality recordings of HTML5 canvas animations at a fixed and consistent frame rate. Unlike traditional screen recording tools, it decouples rendering speed from capture speed, allowing developers to generate smooth video outputs even when frames take longer to compute. It works by overriding time-related browser functions such as requestAnimationFrame and Date.now to simulate a stable time progression, ensuring every frame is captured accurately. This approach enables the creation of high-resolution videos, slow-motion sequences, or complex visualizations without dropped frames. The library supports multiple export formats including WebM, GIF, PNG sequences, and JPEG archives, making it flexible for different workflows. It integrates easily into browser-based creative coding environments like Three.js and p5.js, making it especially valuable for artists and developers producing generative visuals.
    Downloads: 1 This Week
    Last Update:
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  • 18
    Orbis stream
    Stream to Twitch, YouTube, Kick, Tiktok, facebook simultaneously — even across multiple channels — all from one place. A free Windows app with no ads, designed to make multistreaming simple and accessible. To view details for each new release, click the GitHub link https://github.com/Zaccalos7/lazy-stream-windows/releases One app. Multiple channels. Multiple platforms. Zero ads.
    Downloads: 13 This Week
    Last Update:
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  • 19
    Youtube Mp3 Downloader OSX (Free)

    Youtube Mp3 Downloader OSX (Free)

    A simple Mp3 downloader for MacOS.

    A simple Mp3 downloader for MacOS. Have you ever wanted to download youtube music on your mac? With Youtube Mp3 Downloader OSX you can download music easily, safely, and free to your mac. Our software is entirely free and has no hidden drawbacks.
    Downloads: 6 This Week
    Last Update:
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  • 20
    UNA

    UNA

    PHP & MySQL based CMS with messenger

    Full featured CMS with social features. It has limited functionality by default and can be extended with additional modules. Additional modules includes such features as Education solution, Video Messenger, Events, Polls, Tasks, Forum, Market, Videos, Video Streaming and more
    Downloads: 5 This Week
    Last Update:
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  • 21
    node-screen

    node-screen

    Client Server digital signage

    node-screen is a multi platform digital signage system, designed for retail outlets. The project consists of a server and a client The client is based on node-webkit and will work on linux/windows/OSX The node screen client works on windows, linux, OSX 10.7+ and Android 4+ For the latest windows client https://sourceforge.net/projects/nodescreen/files/Client/Windows%2064bit/node-screen-r255.zip For the latest Android client https://sourceforge.net/projects/nodescreen/files/Client/Android/node-screen-r177.apk/download For installation instruction please see the Wiki http://sourceforge.net/p/nodescreen/wiki/Home/ The node screen client works on windows, linux, OSX 10.7+ and Android 5.1+
    Downloads: 2 This Week
    Last Update:
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  • 22
    FCP-File-Converter-Pro-Up-to-Date

    FCP-File-Converter-Pro-Up-to-Date

    Fast, private and offline file conversion for Windows

    File Converter Pro is a fast, local Windows application for converting images, videos, audio, document and 3D files. It supports batch processing, audio transcription, ZIP export, temporary storage, secure source deletion, and automatic updates. Conversions remain private on your computer
    Downloads: 4 This Week
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  • 23
    RabbitVideoPlayer

    RabbitVideoPlayer

    Electron Video Player is a lightweight, cross-platform video player

    Electron Video Player is a lightweight, cross-platform video player built with Electron.js. It provides a simple and efficient way to play local video files with a modern user interface. 🔹 Key Features: Supports popular video formats. Minimal and user-friendly UI. Cross-platform compatibility (Windows, Linux, macOS). Built with Electron.js for a smooth experience. 🔹 Release Info: Version: 1.0.0 License: Open-source (MIT) Developer : Ramakrishnan A 🚀 Now available for download!
    Downloads: 2 This Week
    Last Update:
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  • 24
    BibliaPlayWeb

    BibliaPlayWeb

    proyector web, projector, biblia, player, reproductor multimedia, 24/7

    Software para proyección BibliaPlayWeb v.2.1.1 liberado!!! puede hacer sus pruebas y comentarlo. se necesita de una maquina virtual o servidor linux fisico como manjaro, ubuntu u otros. BibliaPlayWeb, es un software para la proyección de multimedia, como videos, imágenes, listas, pero su función principal por lo que fue creado es para la presentación o proyección de la Biblia. Proyección de YouTube; con búsqueda y guardar los resultados en una lista para luego reproducirlo uno a uno o toda la lista en forma automática si publicidad. acepta crear listas para luego cargarlos esas listas. Acepta también la reproducción directa de los enlaces copiados desde el navegador.
    Downloads: 1 This Week
    Last Update:
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  • 25
    Defa Protect HTML5 Video From Download

    Defa Protect HTML5 Video From Download

    Prevent and Protect Your HTML5 Video, Music , Audio From Download Free

    Defa Protector is A Simple PHP and Wordpress Plugin To Protect and Prevent Video Save As From Browser and Some Video Grabber. There is 100% Guaranteed Protection and There might be some tradeoff but If you care about Digital Rights Management of Your Video and Music Content. This Project is for you. Defa Protector 6.7.1 Revamp Code For Better Performance To The Bone. We almost rewritten this project from scratch.
    Downloads: 1 This Week
    Last Update:
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