Video Downloader - AceFetch by AceFetch Team

Inspect, analyze, and save standard web media streams (HLS, DASH, MP4) locally for offline playback and testing.

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About this extension

AceFetch is a lightweight browser extension designed for developers and users to inspect, analyze, and capture standard web media streams for offline technical evaluation and personal playback.

Standard Protocol Detection: Automatically detects standard HTTP Live Streaming (HLS/M3U8), Dynamic Adaptive Streaming over HTTP (MPEG-DASH/MPD), and regular MP4/WebM video formats.
Multi-Quality Inspection: Clearly inspects available video resolutions, frame rates, and audio bitrates present in manifest files.
Pure Client-Side Processing: All stream segment processing and saving occur strictly within the browser sandbox on your local machine. No remote backend servers or transcoding proxies are involved.
Convenient UI: Access detected media streams effortlessly via the browser action popup or the native sidebar panel.

Zero Tracking: AceFetch does NOT collect, store, or transmit any personally identifiable information (PII), browsing history, or user credentials.
No Remote Telemetry: Everything executes purely on the client-side. Your activity remains private to your device.

No DRM Bypassing: This extension DOES NOT and WILL NEVER bypass, decrypt, or circumvent Digital Rights Management (DRM) technologies (including Widevine, FairPlay, and PlayReady). It cannot and will not download any protected/encrypted content.
Authorized Use Only: This tool is intended solely for personal archival of openly available media (such as Creative Commons or public domain content) and stream development testing.
Terms of Service: Users are responsible for complying with the terms of service of any third-party websites they interact with and respecting intellectual property rights.

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Permissions and data

Required permissions:

Download files and read and modify the browser’s download history
Open files downloaded to your computer
Display notifications to you
Access browser tabs
Access browser activity during navigation
Access your data for all websites

Optional permissions:

Access your data for all websites

Required data collection, according to the developer:

Authentication information
Browsing activity

Optional data collection, according to the developer:

Technical and interaction data