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 browser tool designed to detect, download, and convert web-based streaming media. It intelligently captures HLS / M3U8 streams playing in your browser and merges segments locally into standard MP4 files for offline playback. [Key Features] 1. Smart Media Detection: Automatically sniffs network traffic during video playback to detect .m3u8 playlists and corresponding TS / fMP4 media segments. 2. Fast In-Browser MP4 Merging: Fetches segments concurrently and merges them directly inside your browser memory without uploading media data to external servers, ensuring speed, security, and privacy. 3. Intelligent File Naming: Automatically uses the web page title as the default file name, while supporting custom naming rules and regular expressions (Regex) for organized storage. 4. Flexible Resource Management: Allows filtering media by file size and supports one-click stream URL copying or batch download management. 5. Clean & Easy to Use: Minimal interface without intrusive popups, supporting quick playlist link copying and batch downloading. 6. Lightweight & High Performance: Built on the Manifest V3 architecture, running on demand in the background with minimal system resource footprint. [Use Cases] - Offline backup and archiving of web videos - Saving online courses, webinars, and educational lectures - Inspecting and analyzing HLS streaming resources for developers and video professionals - Watching video content offline during travel or poor network conditions [How to Use] 1. Open the webpage with your desired video and start playback. 2. Click the extension icon in your browser toolbar to open the capture panel. 3. Verify the file name and click "Download" or "Download All". 4. Once segment retrieval and local assembly are complete, the browser will automatically save the MP4 file. [Important Notes & Disclaimers] 1. Technical Scope: This tool operates strictly under standard HTTP Live Streaming (HLS) protocol specifications and works only with media adhering to open standards. It does not provide specialized adaptations or custom workarounds for websites employing proprietary protocols, non-standard packaging, or custom playback architectures. 2. DRM & Copyright Limitations: This tool does not bypass digital rights management (DRM, such as Widevine, FairPlay) or advanced proprietary encryption. Users are responsible for verifying media copyright and authorization before downloading. Any legal liabilities arising from obtaining or distributing media rest entirely with the user. 3. Compatibility Disclaimer: While extensively tested across popular web streaming environments, the diversity of website implementations and server protections prevents a guarantee of 100% download success. If a stream cannot be captured, please consider alternative specialized solutions.