M3U8 Downloader - HLS Video Saver

Easily detect and capture HLS/M3U8 media streams, auto-name files by page title, and merge segments locally into MP4.

M3U8 Video Downloader is a high-performance browser extension designed to detect, capture, and download web-based HLS / M3U8 video streams, assembling segments locally into standard MP4 files for offline playback. [Key Features] 1. Smart Media Sniffing: Automatically detects .m3u8 playlists and TS / fMP4 media segments loaded as you browse and play videos. 2. Local Fast Merging to MP4: Utilizes multi-threaded concurrent downloading within your browser to directly assemble standard MP4 files. No data is uploaded to third-party cloud servers, ensuring speed, security, and privacy. 3. Intelligent File Naming: Automatically captures webpage titles for output filenames, with full support for custom regex rules and patterns. 4. Flexible Resource Management: Filter out irrelevant media by file size, copy stream URLs with one click, or batch process download tasks. 5. Clean & Intuitive Interface: No distracting pop-ups; straightforward one-click downloads and streamlined queue management. 6. Lightweight & Efficient: Built on the modern Chrome Manifest V3 standard; runs on demand with minimal memory and CPU usage. [Use Cases] - Offline backup and personal archiving of web videos - Saving online courses, lectures, tutorials, and webinars - Analyzing HLS streaming sources for web developers and media professionals - Smooth offline viewing during travel or in low-connectivity environments [How to Use] 1. Open the webpage containing your desired video and start playback. 2. Click the M3U8 Downloader icon in the browser toolbar to view detected streams. 3. Confirm the filename and click "Download" or "Download All". 4. Once segments are assembled, your browser will prompt you to save the completed MP4 file. [Disclaimer & Compliance Notice] 1. Protocol Standards: This extension operates strictly on the open HTTP Live Streaming (HLS) protocol standard. Sites utilizing non-standard packaging, proprietary protocols, or custom players are not supported and may not be captured. 2. Copyright & DRM Restrictions: This tool DOES NOT support downloading content protected by Digital Rights Management (DRM, such as Widevine or FairPlay) or proprietary encryption. Users are responsible for verifying copyright permissions prior to downloading. 3. Compatibility: While we strive for broad compatibility with mainstream streaming implementations, variable server configurations mean 100% success cannot be guaranteed.