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Download HLS videos and subtitles from Kaltura (KAF) players with one click. Kaltura Downloader adds a floating download button directly on the video player. No need to open developer tools or copy URLs manually — just play the video and click Download. [FEATURES] • One-click video download — plays the video, click Download, pick a quality, done. • Quality selection — choose between available resolutions (1080p, 720p, etc.) • Subtitle download — automatically detects and downloads WebVTT subtitles. • Copy m3u8 URL — for advanced users who prefer ffmpeg or other tools. • Real-time progress — see exactly how many segments have been downloaded. • Parallel downloads — 6 concurrent segment downloads with automatic retry. [HOW IT WORKS] 1. Navigate to any page with a Kaltura (KAF) video embed. 2. Play the video. 3. A blue Download button appears on the player. 4. Click it, select quality, and the download begins. 5. The extension downloads all HLS segments in parallel and merges them into a single file. Output format is .ts (MPEG-TS), playable in VLC, mpv, and most media players. To convert to MP4: ffmpeg -i video.ts -c copy video.mp4 [PRIVACY] • No data collection — everything runs locally in your browser. • No external servers — downloads happen directly from Kaltura CDN. • No account required. • Open source: https://github.com/gracefullight/kaltura-downloader [PERMISSIONS] • webRequest: to detect when a Kaltura video manifest is loaded. • host_permissions (*.kaltura.com): to parse the video playlist for quality options. This extension does not modify, block, or redirect any network requests.
Video Downloader
Download videos from the web. Video Downloader detects and downloads videos from websites you visit. It supports HLS streams, MP4, and other common video formats. Features: • Automatically detects videos playing on the current page • Downloads HLS/M3U8 streams as playable MP4 files • Shows download progress in real time • Simple, clean interface — just click and download How to use: 1. Visit a page with a video and start playing it 2. Click the Video Downloader icon in your toolbar 3. Select the video quality you want 4. Click Download Note: This extension does not support DRM-protected content or YouTube downloads (per Chrome Web Store policy).
Canvas – Video Downloader, Transcriber & Summarizer
Download, summarize, and transcribe videos from any website. Including popular LMS: Canvas, Blackboard, and Moodle. The All-in-One Video Downloader, Summarizer, and Transcriber for the Modern Web Canvas makes it easy to download, convert, summarize, and transcribe videos from across the web. Whether you’re watching a tutorial, webinar, lecture, or online course, Canvas helps you capture, understand, and organize content — quickly and securely. Built for anyone who values learning, productivity, and knowledge — from professionals and researchers to everyday learners. 🎥 Universal Video Downloading Download videos from a wide range of websites, including educational platforms like Canvas, Blackboard, and Moodle. Keep your videos stored locally for offline viewing. 🧠 AI-Powered Summaries & Transcriptions Generate concise summaries and accurate transcriptions from any video or audio. Perfect for note-taking, review, or accessibility. 🔒 Private and Secure All processing happens locally on your device. Your downloads, transcriptions, and summaries remain private — never uploaded or shared externally. Why You’ll Love It: - Download and store videos for offline access - Review long content faster with AI summaries - Convert and search transcripts easily - Works across most websites and LMS platforms - Keeps your data completely private Perfect For: - Learners & Educators: Ideal for studying or teaching from Canvas, Blackboard, and Moodle. - Professionals: Save and summarize webinars, training, and meetings. - Researchers: Transcribe and analyze academic or recorded materials. - Lifelong Learners: Capture and organize tutorials and online talks. By combining downloading, transcription, and AI-powered summarization, it helps anyone save time, learn faster, and stay organized across the web. What’s New (v2.2.0): - Added functionality to the popup and content interface - Added support for processing MP4 and HLS videos on any website - Improved performance and overall stability Download. Summarize. Transcribe. Learn more efficiently — with Canvas!
M3U8 Downloader
How to use? 1. Install it 2. Pin it 3. Click the browser icon 4. Paste the m3u8 URL 5. Select the video 6. Click Downloader button Some tools you might need: Free Online Screen Recorder https://record.m3u8.dev/
Video NeatDownloader - Fast Media Saver
The ultimate HLS & M3U8 video downloader. Catch streaming videos, extract blob URLs, and merge HLS and M3U8 segments locally. Video NeatDownloader is the ultimate, privacy-first video downloader designed to catch streaming videos, extract blob URLs, and seamlessly merge HLS and M3U8 segments directly on your local machine. Built for scenarios where a standard browser download fails, Video NeatDownloader empowers you to save media from complex embedded players, live streams, and fragmented web sources. • 🎬 - ADVANCED HLS & M3U8 EXTRACTOR: Automatically detects .m3u8 playlists and downloads segmented streams effortlessly. • 📥 - TRUE TS-TO-MP4 REMUXING: Converts and merges HLS/TS segments into high-quality, universally compatible MP4 files locally, without relying on external servers. • 🛠️ - BLOB URL & EMBEDDED PLAYER SUPPORT: Overcomes complex video hosting setups by extracting media hidden behind blob-based players. • 📺 - CAPTURE WHILE PLAYING: An innovative fallback that records visible, non-DRM playback directly from your screen when no direct source file is exposed. • ⚡- SMART DOWNLOAD MANAGER: Track real-time progress, manage your local queue (pause, resume, cancel), and automatically select the best available resolution. • 🎨 - UNIVERSAL STREAM DETECTION: Intelligently identifies standard MP4, WebM, and fragmented media streams across the web. - 🔒 - 100% Local Privacy-First Pipeline: Everything happens directly on your device. We never proxy your data, meaning your downloads and browsing history remain entirely private. --- OPTIMIZED FOR POPULAR PLATFORMS --- Our engine features site-specific parsing to reliably download videos from the platforms you use most, including: • REDDIT: Seamlessly stitches separated audio and video streams together to ensure your downloaded videos have sound. • TWITTER (X): Easily save high-resolution video streams from timelines and individual posts. • FACEBOOK: Download content directly from Facebook Reels and Watch. • BILIBILI: Enhanced support for high-quality Bilibili video extraction. • VIMEO: Extract both embedded and hosted Vimeo content without needing authentication. • DAILYMOTION, VK (VKONTAKTE), & FC2: Seamlessly sniff and extract streams from these major international platforms. • GENERIC EMBEDDED PLAYERS: Reliably pulls video from thousands of standard HTML5 and custom web players. *(Note: YouTube downloading is strictly prohibited by Chrome Web Store policies and is not supported by this extension.)* Unlike other video downloaders that route your data through shady third-party servers, Video NeatDownloader features a true Zero-Server Architecture: • All video assembly, TS-to-MP4 remuxing, and processing happen locally on your device using advanced browser APIs. • Your media data and browsing history never leave your machine. • Zero telemetry, no remote media uploads, and completely ad-free. • NO DRM SUPPORT: Encrypted or DRM-protected playback (e.g., premium streaming services) cannot be downloaded. • DASH STREAMS & MUXING: Supports on-the-fly audio and video muxing for platforms like Reddit. Highly complex or encrypted DASH manifests are not supported. • FALLBACK PURPOSE: Capture While Playing is designed as a resilient fallback for visible, non-DRM streams, not a universal format converter. 1. Open a web page featuring the video stream you want to save. 2. Click the Video NeatDownloader icon to review all detected media sources and resolutions. 3. Choose the optimal format (Direct MP4, HLS/M3U8 variant, or Capture While Playing). 4. Monitor the progress in the native popup or side panel, and find your finished file securely saved in your Chrome Downloads folder. [2.6.3] - 2026-06-07 -- Added • Reddit Stream Resolution and Reddit Video Support: Added support for resolving direct progressive MP4 downloads from Reddit slugs and network URLs using temporary authorization tokens. • Review Prompt Banner: Implemented a non-intrusive rate prompt in the popup UI appearing after 3 successful downloads. • CWS Listing Optimization: Updated the store listing and modified the manifest title for enhanced search visibility. [2.6.2] - 2026-05-25 -- Fixed • Playable Resumed Downloads: Prevented MP4 and HLS retries from producing zero-prefixed corrupt files when saved resume metadata outlives its temporary media data. [2.6.0] - 2026-05-17 -- Added • Worker Modularization: Split the massive hls_worker.js into cohesive, single-responsibility modules: -- hls_downloader.js (segmented M3U8 handling) -- progressive_downloader.js (MP4/direct progressive streams) -- capture_downloader.js (canvas/tab capture engine) -- diagnostics.js (DRM and environment reporting) • Unified DASH Processing: Completed porting Vimeo adapters to run on the generic DASH/mux engine. • Enhanced Validation: Added pre-flight check validation for resolved tasks and clean duplicate handling. -- Improved • Code Maintainability: Removed over 1,400 lines of complex inline code from the core offscreen worker, distributing the responsibilities to specific isolated engines. • Test Integrity: Updated simulated test context runner to load all modular files, keeping automated fixture tests passing. [2.5.0] - 2026-05-17 -- Added • Full DASH Stream Support: Generalized the downloader from Vimeo-only JSON streams to support standard DASH manifests (.mpd), covering SegmentTemplate, SegmentList, and SegmentBase (sidx index) formats. • Local Audio/Video Muxing: Added support for fetching separate DASH audio and video tracks and merging them locally into a single high-quality MP4 file. • Video-Only DASH Mode: Added a “Download Video Only” feature to the popup for quick video track downloads. • DASH Test Fixtures: Created a robust test suite covering multiple DASH layouts to verify parser accuracy. • Durable Resume Support (OPFS): Implemented Origin Private File System persistent storage sidecars to allow both HLS and DASH downloads to resume exactly where they were paused or stopped, even after worker termination or error. • Diagnostics Bundle Export: Added support for exporting an automated redacted support diagnostics bundle for debugging. • Segment Concurrency Setting: Allowed parallel segment downloads control (1 to 8 concurrent segments). • “Best Playable” Recommendation Strategy: Introduced a smart Advisor mode that balances compatibility, codec efficiency, and resolution. [2.2.0] - 2026-05-16 -- Fixed • Resume Stuck Bug: Added a 10-second timeout to resume and restart actions to prevent the queue from getting stuck on unresponsive offscreen workers. • Offscreen Synchronization: Background script now ensures the offscreen document is active before dispatching resume commands, fixing cases where “Restart” would hang indefinitely. [2.1.0] - 2026-05-10 -- Added • Bilibili Support: Enhanced detection and extraction for Bilibili video streams. • HLS Partial Output: Extension now preserves and saves usable media segments even if a download is interrupted or cancelled. Improved • Worker Stability: Refined offscreen HLS worker and background listeners for better reliability during long downloads. • Queue Resilience: Improved handling of network retries and manifest refreshes. [2.0.0] - 2026-05-07 -- Added • True HLS TS-to-MP4 Remux: Implemented local remuxing of TS-based HLS streams into standard MP4 files without quality loss. • Enhanced Recovery Suite: • No Video Assistant: Interactive recovery guide when no media is detected. • Capture While Playing: Direct screen/buffer capture for resilient downloads on protected or unstable sources. • Deep Site Research: Completed comprehensive research and documentation for top 10 video sites to improve download success rates. Download Diagnostics: One-click technical report generation for easier troubleshooting. -- Improved • HLS Stability: Refined offscreen processing for large file merges. • Site Compatibility: Updated detection logic for VK, Dailymotion, and FC2. [1.2.0] - 2026-04-13 -- Fixed HLS Messaging: Updated marketing and UI copy to accurately reflect local merging behavior for M3U8/HLS streams. DASH Labeling: Added explicit labeling for unsupported DASH manifests (segmented/separate-audio) to guide users clearly. Pro Cleanup: Hard-disabled and removed dormant Pro feature affordances to maintain a clean free-build experience. -- Improved Popup Performance: Replaced the high-frequency 250ms polling loop with a push-first update model, significantly reducing background worker overhead. [1.0.0] - 2026-04-03 -- Added Universal Video Detection: Engine for identifying MP4, WebM, and fragmented media streams across the web. Advanced HLS & M3U8 Support: Automatic detection of M3U8 manifests and segment-based downloading. Zero-Server Video Merging: Client-side merging of video segments into high-quality MP4 files using browser-native APIs and offscreen processing. Site-Specific Parsers: -- Twitter (X): Recognition of high-resolution video streams on timelines and individual posts. -- Vimeo: Extraction of embedded and hosted Vimeo content without authentication. -- Facebook: Experimental support for Facebook Reels and Watch video detection. Smart Download Manager: -- Real-time progress tracking with download speed indicators. -- Persistent local queue management (pause, resume, cancel). -- Automatic quality selection where multiple resolutions are detected. Modern UI Suite: -- Premium dark-themed Popup interface. -- Chrome Side Panel integration for persistent download monitoring. -- Responsive design for all browser window sizes. Privacy-First Architecture: -- 100% local processing; no media data or metadata ever leaves your machine. -- Zero telemetry and no external analytics. Blob URL Handling: Support for extracting and downloading media from blob-based player sources. -- Changed Initial release preparation—shifting from internal prototype to production-ready extension. -- Security Implemented Manifest V3 security standards using Declarative Net Request for media header handling. Sandboxed offscreen processing for merging large media files securely. Made with ❤️ for video enthusiasts.
