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StreamGrabber

Lightweight downloader for HLS (.m3u8 via m3u8-parser), video blobs, and direct videos. Mobile + Desktop. Pause/Resume. AES-128. fMP4. Minimal UI.

如何安裝

您需要先安裝使用者腳本管理器擴展，如 Tampermonkey、Greasemonkey 或 Violentmonkey 之後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能，如 Tampermonkey 或 Violentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能，如 Tampermonkey或 Violentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能，如 Tampermonkey或 Userscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展，比如 Tampermonkey，才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

（我已經安裝了使用者腳本管理器，讓我安裝！）

如何安裝

你需要先安裝一款使用者樣式管理器擴展，比如 Stylus，才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展，比如 Stylus，才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展，比如 Stylus，才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

（我已經安裝了使用者樣式管理器，讓我安裝！）

作者
quantavil
今日安裝
3
安裝總數
40
評價
1 0 0
版本
1.2.3
建立日期
2025-11-05
更新日期
2025-11-15
尺寸
46.5 KB
授權條款
MIT
腳本執行於
所有網站

StreamGrabber

A lightweight, powerful userscript for downloading HLS (.m3u8) video streams, video blobs, and direct videos directly from your browser. Supports mobile and desktop, with pause/resume functionality, AES-128 encryption, fMP4, and minimal UI.

Installation

Requirements

Install Steps

  1. Install a userscript manager extension in your browser
  2. Click here to install the script
  3. Confirm installation when prompted by your userscript manager

The script will automatically activate on all websites.

Usage

  1. Navigate to any webpage containing video content
  2. If supported media is detected, a floating download button will appear in the bottom-right corner
  3. Click the download button to open the media selection dialog
  4. Choose from available video streams or direct video files
  5. For HLS streams with multiple qualities, select your preferred resolution
  6. Monitor download progress in the floating progress card
  7. Downloads support pause/resume functionality

Advanced Features

  • Alt+Click: When exactly one media item is detected, alt-clicking the download button will start download immediately without showing the selection dialog
  • Copy URLs: Click the copy button next to any media item to copy its URL to clipboard
  • Filter Options: Toggle "Exclude small (< 1MB)" to filter out thumbnails or ads
  • Progress Controls: Pause/resume downloads, hide/show progress cards, or cancel downloads

Features

  • Automatic Detection: Automatically detects m3u8 streams and video blobs on any website
  • Multi-Quality Support: Choose from available video quality variants for HLS streams
  • Encryption Support: Handles AES-128 encrypted streams
  • Format Support: Supports both fragmented MP4 (fMP4) and MPEG-TS formats
  • Progress Tracking: Real-time download progress with pause/resume functionality
  • Video.js Integration: Adds download buttons to Video.js players
  • Cross-Origin Support: Uses GM_xmlhttpRequest for reliable cross-domain requests
  • Modern File APIs: Utilizes File System Access API when available, falls back to blob downloads
  • Size Estimation: Smart size estimation for HLS streams using bandwidth data or byte ranges
  • Smart Filtering: Option to exclude small files (< 1 MB) to filter out thumbnails/ads
  • Robust Error Handling: Automatic retry mechanism with configurable limits
  • Clean UI: Floating download button with progress cards and variant picker
  • Concurrent Downloads: Optimized concurrent segment downloading for faster HLS downloads