Looking to download Onsen videos? yt-dlp online is the fastest, cleanest way to save Onsen content to your computer in original quality. インターネットラジオステーション＜音泉＞. It is built on top of yt-dlp — the most powerful open-source media downloader available — and wraps its full feature set in a friendly desktop interface so you never have to touch a command line.
Paste any Onsen link into the downloader below to instantly extract every available format. Choose the resolution and codec you want — from a lightweight 360p clip to a full 8K HDR master — or pull the audio out as a high-bitrate MP3. There are no watermarks, no daily limits, no ads and no account required.
How to download from Onsen
There are three easy ways to save Onsen content. The desktop app is the most powerful, but the web downloader above works instantly with no install.
- 1. Copy the Onsen URL
Open Onsen, find the video, playlist or audio you want, and copy its link from the address bar or the share menu.
- 2. Paste it into the downloader
Paste the link into the box above and press Fetch. yt-dlp connects to Onsen and lists every format it can extract — resolutions, codecs, file sizes and audio-only options.
- 3. Choose your format
Select the quality and container you want — MP4 for maximum compatibility, MKV to keep every track, or an audio-only format like MP3. Progressive formats (audio + video in one file) are listed first.
- 4. Download
Click download and the file is saved directly from Onsen's servers to your device. Nothing is stored on our servers — the extraction endpoint only returns the direct media links.
What makes the Onsen downloader different
Every Onsen quality, from 360p to 8K
yt-dlp reads the full format manifest from Onsen, so you get the exact streams the platform serves — including 1080p, 1440p, 4K and 8K where available, with HDR and high-frame-rate variants preserved. Pick the format you want; the app merges the best video and audio with FFmpeg automatically.
Extract Onsen audio as MP3, M4A or FLAC
Only need the sound? Grab a podcast, song, lecture or interview from Onsen and convert it to MP3, M4A, Opus or FLAC at the highest available bitrate, with chapters and metadata carried over when the source provides them.
Playlists, channels and batches
Drop in a Onsen playlist or channel URL and the app previews every item so you can select exactly what to download. Queue hundreds of videos and let parallel fragment downloading — four concurrent streams by default — saturate your connection.
Private and members-only Onsen content
Import cookies straight from Chrome, Firefox, Edge, Brave or Safari to download age-restricted, region-locked or members-only Onsen media you already have access to. Proxy support routes requests through any HTTP, HTTPS or SOCKS endpoint.
Three ways to download Onsen videos
Using the desktop app (recommended)
Install yt-dlp online for Windows, macOS or Linux, paste your Onsen link, pick a format and click download. The app self-updates its yt-dlp engine, so extraction keeps working even when Onsen changes its site.
Using the command line
Prefer the terminal? Install yt-dlp and run: yt-dlp -f "bestvideo+bestaudio" --merge-output-format mp4 "<Onsen URL>". Add -x --audio-format mp3 to grab audio only.
Using the web downloader
The form at the top of this page calls our cloud extraction endpoint, which runs yt-dlp on the server and returns the direct Onsen download links — no install required for quick, occasional downloads.
Supported Onsen formats & quality
yt-dlp extracts whatever Onsen serves and exposes every stream so you can choose precisely what to save:
- Video: MP4 (H.264/H.265), WebM (VP9/AV1), MKV — up to 8K with HDR and 60fps where available.
- Audio: MP3, M4A (AAC), Opus and FLAC at the highest source bitrate.
- Subtitles & metadata: closed captions, chapters, thumbnails and tags embedded automatically.
- Batches: entire Onsen playlists, channels and user pages in one queue.