VideoDownloadAIFox · Web Media Finder

Find and save web media you may keep: covers, preview, direct/HLS downloads, lossless TS to MP4. No DRM, paywall or login bypass.

VideoDownloadAIFox is a web media finder that runs entirely on your own device. It turns the audio and video addresses already loaded by your current tab into a clear list with covers and previews, so you can save a file you are entitled to keep with one click. It does not host, supply or index any content, and it does not make copyright decisions for you. It simply makes the files your browser has already received visible, identifiable and easy to act on. What it is for When a page plays a video, the browser has already requested an MP4, WebM, m3u8 playlist or MPEG-TS segments in the background. Those addresses are invisible to most people, and it is often hard to tell which one is the complete file. VideoDownloadAIFox has one job: detect those media addresses on the page you are viewing, group them by type, show a cover when one is available, and let you decide whether to save one. Typical uses: - Archiving media you uploaded yourself, or openly available training sessions, webinars and meeting replays provided by your organisation, for offline viewing; - Keeping a local copy of openly licensed lessons, product demos or promotional clips you use in your own work; - Checking which media file, size and format a page you maintain actually loads; - Previewing a clip and its cover first, so you do not download the wrong file or an audio-only fragment. Why install it 1. No more developer tools. Instead of opening the Network panel, filtering for media, guessing filenames and copying URLs, you open a small popup and see the list for the current tab. 2. No uploading to an online converter. HLS segment merging and TS-to-MP4 remuxing happen inside your browser. Your files never leave your device, and there are no third-party size limits, ads or queues. 3. No extra software. No ffmpeg, no command line, no separate player. MPEG-TS is repackaged into an MP4 container without re-encoding, usually in seconds, with picture and sound unchanged. 4. See it before you save it. Covers, a silent looping hover preview and a standalone preview window let you confirm the clip first. The list is scoped to the current tab, clears on navigation, and removed items do not come back. 5. A smaller privacy footprint. No account, no server, no telemetry, no ads, no third-party SDK. Browsing history is never uploaded. 6. You control the permission. No site access is requested at install time. On first use, a disclosure appears inside the extension UI; detection starts only after you click "Accept and enable" and grant site access yourself. Both can be revoked at any time. 7. Completely free. No in-app purchases, no subscription, no paid unlock, no trial period and no feature gates. Getting started 1. On a page containing media you are entitled to keep, click the toolbar icon. On first use, read and accept the disclosure and enable site access. 2. Review covers, types and sizes. Hover a cover for a silent looping preview, or click Preview to play in a separate window. 3. Click Download or "Download (with source)". Direct links are saved as-is, HLS (m3u8) playlists are merged, and MPEG-TS is losslessly repackaged as MP4. Features - Detects video, audio, HLS playlists and MPEG-TS resources for the current tab only; the list is never carried across pages; - Video covers, silent auto-preview on hover and full playback in a standalone window; - Direct downloads, source-aware (Referer) downloads, copy-link and a context menu entry; - HLS playlist parsing with concurrent segment merging, AES-128 and BYTERANGE support; - Lossless MPEG-TS to MP4 remuxing (container change only, no re-encoding); fMP4 is written as MP4 directly; - Covers, hover previews, notifications and Referer handling can all be switched off; minimum size and concurrency are configurable; - In-UI first-run disclosure with explicit consent, withdrawable from the settings page. Who it is for / not for For people archiving media they are entitled to keep, debugging their own pages, or working with content while keeping files local. It is not for anyone trying to obtain paid, login-restricted or DRM-protected content: the extension explicitly does not support that. Limits (please read) - Does not bypass Youtube, DRM, paywalls, login requirements or any access control; provides no decryption keys or signing service; - Does not host, store, distribute or index media content and offers no content search; - Only save content you have the legal right to keep and that complies with the target site's terms. You are responsible for what you download and how you use it. Known limitations - Generic DASH (mpd) and SAMPLE-AES are not supported. Some sites use signed fragments that cannot be reassembled into a complete file; in that case you can copy the page link to an external tool of your choice; - Resources behind CDN hotlink protection or cross-origin policies may need "Download (with source)"; - The extension only handles public addresses already loaded by the page and cannot reach content protected by access controls. Privacy and permissions No site access is requested at install time. On first use you accept the in-UI disclosure and then explicitly click "Enable media detection"; both steps can be revoked at any time. There is no account, no server, no telemetry, no ads and no third-party SDK. Captures live in local session storage, settings in browser-local storage, and the consent record stays on this device and is never synced. The extension contains no remote code and uses no eval or remotely loaded script. Full per-permission justifications are in the privacy policy.