9tsu is a Japanese video site that surfaces TV dramas, variety shows, and anime episodes for free. As a pirate video site, 9tsu has inevitable redirects, ads, and endless pop-up windows. If you wonder how to download videos from 9tsu to avoid these risky things, this post can help you.
Apart from the methods to download 9tsu videos on PC and mobile devices, I will also explain the risk of similar pirate sites, how to protect your computer better when watching videos, and the legality problem.
Tip: Domains in this category (like 9tsu) shuffle constantly. Now, in Jul 2026, the service has migrated to 9tsu.tv. Update any bookmarks before following the steps below.
Before You Download: Legal and Safety Realities
Most of 9tsu's catalog is copyrighted content uploaded without verified rights clearance, and the site itself shows aggressive ads and fake virus-warning pop-ups. Use it with caution.
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Save only what you're authorized to access, keep it for personal offline use, and use a tool that limits your direct exposure to the site's ad layer.
Copyright Status of 9tsu Content
A large share of what 9tsu hosts — episodes of currently airing dramas, anime, and variety shows — is uploaded without clear rights clearance from the original broadcasters. Downloading for personal offline viewing may fall within private-copy provisions in some jurisdictions, but redistributing, reuploading, or sharing what you save is a copyright violation almost everywhere.
Site Safety: Ads, Pop-ups, and Staying Protected
Visiting 9tsu.tv directly in Chrome on a 2024 MacBook Air running macOS Sonoma 14.5, I counted three full-screen ad redirects and one fake "your system is infected" pop-up before a single video loaded. Some independent safety checkers also flag the domain with a low trust score, so caution is warranted.
Two practical defenses I lean on:
- Use a desktop downloader with its own isolated built-in browser (like KeepStreams) so the ad layer never touches your main Chrome profile.
- Keep an ad blocker active if you do open the site directly, and never click any "download codec" or "update Flash" prompt — 9tsu doesn't need either.
Download 9tsu Videos on Windows or Mac
Now I'll introduce 3 different methods to download videos from 9tsu on desktop, including a professional program, an online downloader tool, and a browser extension.
Method 1: KeepStreams Desktop Software
KeepStreams for YouTube is a desktop app. Don't let its name fool you. KeepStreams can save yt-dlp videos from 180+ video-sharing sites, including 9tsu and a long list of similar Japanese sites — TVer, Bandai Channel, TV Asahi catch-up, FC2, SayMove! — through a single built-in browser.
Because the playback happens inside its own window, you sidestep most of the ad-redirect mess that comes with opening 9tsu.tv in Chrome directly.
In my testing on a Windows 11 desktop with a 300 Mbps fiber line, a 40-minute episode from 9tsu was saved in about 5 minutes. KeepStreams has a powerful built-in browser, so it's very easy to use:
Step1
Install KeepStreams for your operating system (Windows or Mac) and launch it.
Step2
Paste a 9tsu.tv video page URL into the address bar to open it inside the built-in browser.
Step3
Press play on the episode page and wait for seconds
KeepStreams detects the embedded stream and starts analyzing the available formats.
Step4
Set download options and click on Download Now
When the format picker pops up, choose your resolution, audio codec, and subtitle track. Click Download Now to start.
Method 2: Free Online Downloaders (No Installation)
If you only need to grab one or two videos and don't want to install anything, an online tool is the path of least resistance. TubeOffline is the one most people reach for with 9tsu — paste a link, pick a format, download. It also handles links from YouTube, Facebook, and Instagram, so it pulls double duty if you collect clips from multiple sources.
However, it sometimes redirects you to Dirpy!, a paid online downloader that doesn't provide a free trial.
Updated Note: After 9tsu changed its domain, most online video downloaders fail, including TubeOffline, AmoyShare, PasteDownload, etc.
To download 9tsu video with TubeOffline, follow these steps:
Step1
On 9tsu.tv, open the episode page and copy the URL (Ctrl+C on Windows, Cmd+C on Mac).
Step2
Open a new tab, go to www.tubeoffline.com, and paste the link into the input box at the top.
Step3
Hit Download, wait for the page to finish processing, then pick your preferred format and quality from the list.
Method 3: Browser Extension for Quick Captures
Video DownloadHelper is the Chrome extension most often recommended for 9tsu, tops out at 720p. If you need 1080p, skip this method and use KeepStreams. For a quick, casual save where resolution isn't the priority, it's the fastest option in this list.
VDH grabs HLS (HTTP Live Streaming) format videos directly as the page plays them, which covers most of what 9tsu serves, plus FC2 Video, Sunflower Video, Dailymotion, and SayMove!. But the free version only allows a second download 2 hours after the first one.
Here's how I used Video DownloadHelper to download videos from 9tsu:
Step1
Add Video DownloadHelper to Chrome from the extension store and enable it.
Step2
Play a video on 9tsu.tv
Open 9tsu.tv in a new tab, find the episode, and press play. When Cococut detects the stream, the icon will turn colorful.
Step3
Click the icon, choose a format, and click on Download (can't choose resolution).
The 9tsu video will be saved in MP4 format to the local folder on your PC.
Download 9tsu Videos on Android or iPhone
KeepStreams is desktop-only (Windows and Mac), so on a phone, your realistic options are browser-based online tools.
- The mobile path: open 9tsu.tv in Safari (iPhone) or Chrome (Android), copy the episode URL, then paste it into TubeOffline or a comparable online downloader in another tab. Save the resulting MP4 to your camera roll or Files app.
- What to expect: resolution options on mobile are usually narrower than on desktop, and a flaky connection can break larger downloads mid-stream. For batch saving a whole season, do it on a PC.
- 📌 iOS note: Safari sometimes saves the file as a generic document instead of triggering a video save — long-press the download link and choose Download Linked File, then move it to Photos manually if you want it in your gallery.
Phone browsers weren't built for half-hour video downloads. If you found that these online video downloaders won't work on your mobile phone, try downloading 9tsu videos into MP4 files on your desktop first and move them to your mobile devices. It's 100% working.
[Bonus] Extracting MP3 Audio from a 9tsu Video
Want only the audio from 9tsu videos? KeepStreams and Online downloader sites usually let you grab audio directly without first downloading the full video.
In KeepStreams:
- Go to Downloads > Downloading > +Paste URL, and change the format to audio becore input URL.
- Or, you can directly change the format in a pop-up setting window after analysis of videos.
In an online video downloader:
- Paste the 9tsu.tv episode URL into TubeOffline as above.
- When the format list appears, select MP3 instead of an MP4 resolution.
- Click download and save the audio file.
⚠️ The same personal-use rule applies: keep the audio for your own offline listening, don't re-upload it anywhere.
Conclusion: Which Method Fits Your Situation
There is no "perfect 9tsu video downloader". The final decision should depend on your requirements:
| Method | KeepStreams | TubeOffline | VDH |
| Max resolution | 1080p | 1080p | 720p |
| MP3 extraction | ✅ Direct MP3 export | ✅ MP3 option | ❌ |
| Installation | Required | No | No |
| Batch download | ✅ | ✅ | ✅ |
| Best for |
|
|
Quick casual saves |
| Platform |
Win & Mac |
Any browser | Chrome & Firefox |
Check my honest take after running all three:
- KeepStreams earns the install if you actually care about resolution and you save more than a handful of episodes a month.
- TubeOffline is the right tool when you're on a phone, on someone else's computer, or just want one file fast. But it has no free trial.
- Cococut sits in a narrowing niche — if 720p is fine, it works.
FAQs
Q1. What happened to 9tsu.com — where do I watch 9tsu now?
A1. 9tsu.com is no longer reachable as of 2026. The service has moved to 9tsu.tv. (9tsu.vip is also accessible but has more pop-up ads and redirects) Update your bookmarks and use 9tsu.tv when following any download instructions — including the steps in this article.
Q2. Is it safe to visit 9tsu.tv for downloading?
A2. 9tsu.tv shows aggressive ads and fake virus-warning pop-ups during playback, and some safety checkers flag the domain with a low trust score. Using a desktop tool like KeepStreams that runs through its own isolated built-in browser reduces direct exposure compared with opening the site in Chrome. If you do visit directly, keep an ad blocker on and ignore any "install codec" or "system infected" prompts.
Q3. Can I extract MP3 audio from a 9tsu video?
A3. Yes. Both KeepStreams and online tools such as TubeOffline let you pick MP3 as the output format when you paste a 9tsu.tv video URL — handy for saving a drama's score or a variety-show interview as a personal listening file.
Q4. Is downloading from 9tsu legal?
A4. Much of 9tsu's catalog is copyrighted material uploaded without verified rights clearance. In some jurisdictions, saving a copy for strictly personal offline viewing of content you're already authorized to access can fall under private-copy provisions. Redistributing or sharing what you save is a copyright violation almost everywhere. Confirm your local law before downloading.
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