HLS & M3U8 Video Downloader - VidNeatDown

Save streaming videos, merge HLS and M3U8 segments directly to MP4, extract blob URLs, transcode audio to MP3, and record live web streams. VidNeatDown is a high-speed, privacy-first media downloader built for scenarios where standard browser downloads fail. No companion app required. No watermarks. No external servers. All video reconstruction, TS-to-MP4 remuxing, audio transcoding, and track muxing happen 100% inside your browser sandbox. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🌟 CORE CAPABILITIES & ADVANCED FEATURES ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ • Universal Video Downloader: Automatically detects HTML5 videos, direct MP4, WebM, and fragmented streaming media across the web. • Advanced HLS & M3U8 Downloader: Parses master playlists, fetches segments with multi-connection acceleration, and merges them locally into standard files. • Lossless TS-to-MP4 Remuxing: Converts raw HLS transport stream segments (.ts) into clean, universally playable .mp4 files with zero quality loss or re-encoding artifacts. • Local DASH Audio & Video Muxing: Downloads separated video and audio tracks (e.g., Reddit, Vimeo) and synchronizes them into a single high-definition file with sound. • Client-Side Audio Extraction to MP3: Transcode video audio streams (.aac, .m4a, .opus, .webm) into standard, audible .mp3 files locally using built-in offline audio processing. • Dual-Engine Buffer & Live Stream Capture: Powerful fallback recording mode for tokenized blob URLs, MediaSource (MSE) streams, and live web broadcasts when direct source URLs are hidden. • Durable Resume Engine (OPFS): Built on the browser's Origin Private File System. If your network connection drops or the browser closes, your download resumes seamlessly without starting over. • 1-Click Multi-Quality Selection: Pick your preferred resolution (4K, 2K, 1080p, 720p, 480p, 360p) or extract MP3 audio with one click. • Intelligent Ad Filtering: Automatically excludes outstream video ads and preroll commercial clips from your detection list. • Smart Queue & Concurrency Manager: Manage parallel downloads, pause/resume active tasks, and customize segment concurrency for maximum download speed. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🎯 OPTIMIZED FOR POPULAR PLATFORMS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ VidNeatDown includes specialized site adapters for smooth media downloading on major platforms: • Twitter / X: Save high-resolution video streams, clips, and animated GIFs from feeds and threads in up to 1080p. • Reddit: Automatically stitches separate DASH video and audio streams together on-the-fly so your downloads always have crisp sound. • Facebook: Download Reels, stories, and public video posts in original quality. • Vimeo: Extract embedded and hosted video streams in all available resolutions without requiring authentication. • Bilibili: High-speed audio and video stream extraction with full track synchronization. • Generic Web Players: Sniffs and captures media across thousands of HTML5 video players, CDN hosts, and embedded iframe streams. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🛡️ WHY VIDNEATDOWN VS OTHER DOWNLOADERS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 1. NO COMPANION APP REQUIRED: Unlike legacy tools (such as Video DownloadHelper) that force you to install separate desktop software (.exe / .pkg), VidNeatDown operates 100% inside Chrome. 2. 100% PRIVATE & ZERO-SERVER PROCESSING: Your media data, downloaded files, and browsing history never pass through external servers. Everything is processed locally on your machine. 3. NO WATERMARKS & NO DAILY LIMITS: Enjoy unlimited full-resolution video downloads without QR code stamps, artificial speed limits, or paywalls. 4. NO TRACKING & NO ACCOUNTS: Completely ad-free with zero telemetry, zero analytics tracking, and no account sign-in required. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚡ HOW TO USE VIDNEATDOWN ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 1. Navigate to any webpage containing a video, audio track, or live stream. 2. Play the video for 2–3 seconds to let the player initialize its stream. 3. Click the VidNeatDown icon in your browser toolbar to open the media list. 4. Select your preferred resolution (1080p, 720p, etc.) or click "MP3" for audio, then click "Download". 5. For complex or protected custom players, switch to "Stream Capture" mode to record directly from playback. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 🔒 PERMISSIONS & PRIVACY COMMITMENT ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ VidNeatDown requires minimal permissions solely to detect and download media: • "downloads": To save merged MP4 and MP3 files directly to your Downloads folder. • "storage": To save your local queue, download history, and user preferences locally. • "declarativeNetRequest": To ensure proper media header handling (Referer/Origin) for CDN stream segments. • "offscreen": To perform client-side TS-to-MP4 remuxing and MP3 audio transcoding safely in the background. ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ ⚠️ POLICY COMPLIANCE & LIMITATIONS ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ • YouTube Policy Notice: Due to Google Chrome Web Store Developer Policies and Terms of Service, downloading videos from YouTube is strictly prohibited and is not supported by this extension. • DRM & Copyright Protection: Encrypted streams protected by Digital Rights Management (DRM) What Changed: [3.4.2] - 2026-09-19 Changed * Chrome Web Store Metadata Reversion * DASH download completion & OPFS retention * DASH network headers & retry resilience * Native download ID mapping * HLS sequential byte-range support * Non-video URL filtering & Chrome Web Store exclusion * CTA label and quality pill deduplication * Completed video stack retention & folder open / clear controls * Download archive logging and UI rendering * History tab clear & archive persistence fixes * Fixture test coverage [3.4.1] - 2026-09-11 -- Fixed • Progressive download pause/resume integrity (progressive_downloader.js): Preserved rangeSupported: true in buildMultipartResumePayl…