Newgrounds Video & Audio Downloader
Save Newgrounds animations as MP4 and Audio Portal tracks as MP3, in one app.
Why download Newgrounds videos with ViralMint?
Newgrounds is one of the last big independent creator archives still standing, and it is exactly the kind of place where work disappears — an artist deletes an account and two decades of animations go with it. Modern uploads are ordinary H.264 video and download cleanly; the Audio Portal is separate, serving MP3 that ViralMint saves directly rather than ripping out of a video container. Some entries are marked adult and sit behind an age-gate that requires a logged-in session, which ViralMint can use via your browser cookies. Note that the very old Flash submissions are not video at all — they are .swf files, and no video downloader can convert one into an MP4 because there is no video stream inside to extract.
How to download from Newgrounds
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Copy the Newgrounds video URL
From newgrounds.com, copy the share or page URL — e.g.
https://www.newgrounds.com/portal/view/000000 -
Paste it into ViralMint
Open the ViralMint desktop app and paste the URL into chat. The planner detects the Newgrounds 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 old Flash submissions?
Not as video. Those entries are .swf files — vector animation with code, not a video stream — so there is nothing for a downloader to remux. They need a Flash emulator such as Ruffle to play, and a screen recording if you want a video of one.
How do I download from the Audio Portal?
Paste the track URL. Audio Portal entries are served as MP3 and ViralMint saves that file directly, so there is no video container to strip and no quality lost to a second encode.
Why does an adult-rated submission fail to download?
Those sit behind Newgrounds' age gate, which needs a signed-in session. Log in once in your normal browser and enable cookie access in Settings; ViralMint then uses the same session your browser has.
How ViralMint compares to other Newgrounds 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 Original upload (typically 720p-1080p)), unlimited file size, batch mode |
| Browser extensions | Video DownloadHelper, FastestTube, similar Chrome / Firefox add-ons | Routinely broken after Newgrounds 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.newgrounds.com/portal/view/000000Equivalent yt-dlp command
If you already use yt-dlp, the desktop app's Newgrounds download is equivalent to running:
yt-dlp -f "bv*+ba/b" --merge-output-format mp4 "https://www.newgrounds.com/portal/view/000000"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.