Free YouTube Video Downloader
Paste any YouTube URL, get the original-quality mp4. Powered by yt-dlp — also auto-transcribes with Whisper so you can study the script.
Why download YouTube videos with ViralMint?
YouTube serves video in DASH-segmented streams that browser-based downloaders typically merge incorrectly, dropping audio or capping at 360p. ViralMint uses yt-dlp under the hood, which fetches both the highest-quality video and audio streams separately and remuxes them into a single mp4 — so a 1080p video stays 1080p, and 4K stays 4K. For deep research on high-resolution content, see our dedicated <a href="/tools/video-downloader/youtube-4k-analysis/">YouTube 4K analysis tool</a>. Premium-only formats (1080p with AV1 codec, 4K HDR) require browser-cookie authentication via Settings → Cookies. Age-gated and unlisted videos work for anyone with a legitimate account.
How to download from YouTube
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Copy the YouTube video URL
From youtube.com, copy the share or page URL — e.g.
https://www.youtube.com/watch?v=dQw4w9WgXcQ -
Paste it into ViralMint
Open the ViralMint desktop app and paste the URL into chat. The planner detects the YouTube URL and triggers the download automatically — no flags, no command line.
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Get the mp4, transcript and AI insights
The video lands in the Videos page with a local Whisper transcript and AI-extracted hook / structure / tone — ready for clip extraction or repurposing.
Frequently Asked Questions
Can I download age-restricted YouTube videos?
Yes — but YouTube requires cookie authentication for age-gated content. Open Settings → Cookies in the desktop app, sign into YouTube in your browser, export the cookies (we explain how in the wizard), and yt-dlp will use them on every subsequent download. Public videos need no auth at all.
Does it download YouTube Shorts?
Yes. Paste the Shorts URL (the youtube.com/shorts/... format) and ViralMint downloads it at native vertical 9:16. The Smart Video pipeline can then re-encode it with captions or repackage into a different aspect ratio.
What about live streams and members-only content?
Live streams can be downloaded once they're archived as VODs. Members-only and Premium-exclusive content requires the corresponding cookie set in Settings — yt-dlp handles the membership-token negotiation automatically.
How ViralMint compares to other YouTube downloaders
| Approach | Examples | Trade-off | ViralMint advantage |
|---|---|---|---|
| Online converters | Y2mate, SaveFrom, ssyoutube, OnlineVideoConverter | Pop-up ads, redirects, quality capped at 720p, file-size limits, no batch downloads, your URL logged to ad networks | Local app, zero ads, original quality (up to Up to 4K (HDR with cookies)), unlimited file size, batch mode |
| Browser extensions | Video DownloadHelper, FastestTube, similar Chrome / Firefox add-ons | Routinely broken after YouTube updates, removed from stores for ToS violations, no transcript or AI analysis | Updates with yt-dlp upstream (community-maintained), independent of browser extension stores, Whisper transcript built in |
| yt-dlp command line | yt-dlp, youtube-dl | Most flexible option but requires terminal comfort, manual cookie handling, no GUI for batch selection | Same yt-dlp under the hood, wrapped in a desktop GUI with cookie auto-detect, batch UI, and post-processing pipeline |
| Closed-source desktop apps | 4K Video Downloader, Allavsoft, ByClick Downloader | Closed-source, paid tiers gate batch and HD, no AI pipeline, no extensible Whisper / FFmpeg post-processing | Open source (AGPL-3.0), AI features prepaid per-action, integrates with the rest of the ViralMint creator pipeline |
Supported URL Example
https://www.youtube.com/watch?v=dQw4w9WgXcQEquivalent yt-dlp command
If you already use yt-dlp, the desktop app's YouTube download is equivalent to running:
yt-dlp -f "bv*+ba/b" --merge-output-format mp4 "https://www.youtube.com/watch?v=dQw4w9WgXcQ"ViralMint also auto-runs Whisper transcription, downloads the thumbnail, and extracts AI hook / structure / tone insights — steps that take a separate command chain in raw yt-dlp.