Bilibili Video Download FAQ

Paste the Bilibili video URL into the tool above. For 480P quality - no login required, works immediately. For 1080P or 4K quality - you need to provide Bilibili cookies from a logged-in session. Our yutto-powered engine bypasses WBI authentication and delivers clean MP4 files without watermark.

WBI (World Bilibili Intelligence) is Bilibili's anti-bot protection system that validates requests using dynamically-generated token parameters. Most third-party downloaders fail because they cannot compute valid WBI tokens. Our tool uses the yutto engine which handles WBI token generation automatically, making downloads work reliably.

In your browser: open bilibili.com, log in, install a cookie export extension (like EditThisCookie or Cookie-Editor), go to bilibili.com, export all cookies as JSON, copy the cookie string, paste it into our cookie input field. Cookies are used only for the current download session and never stored on our servers.

We support all major Bilibili URL formats: BV号 (BV1xx411c7mD), av号 (av123456), b23.tv short links (b23.tv/abc123), and full URLs (bilibili.com/video/BV...). Simply copy the link from the Bilibili app or website and paste it into the downloader.

Yes, 4K downloads are supported. However, 4K requires Bilibili VIP credentials (cookies from a VIP account). Free accounts typically have access up to 1080P. Provide your logged-in cookies to unlock 4K and HDR quality options.

Danmaku (flying comments overlay) is automatically extracted and converted to ASS subtitle format. The ASS file is bundled with your MP4 download. Works in VLC, MPV, and other media players that support ASS subtitles. Great for language learning.

Yes. Public bangumi episodes can be downloaded individually using their episode URLs. Each episode has its own BV number. For sequential downloads of multiple episodes, use Batch mode with multiple URLs. VIP content may require cookies for HD quality.

Yes, but with limitations. Without login you get 480P quality which is sufficient for previews. For 1080P, 4K, and HDR quality, you need to provide Bilibili cookies from a logged-in account. Cookies are session-only and never stored.

BV号 (Bilibili Video ID) is the current identifier format used by Bilibili since 2020. av号 (Audio-Visual number) was the original format and is now largely deprecated but still works. Both formats are supported by our downloader. b23.tv short links are also supported.

Open this page in Safari on iPhone, paste the Bilibili URL, select quality, and tap Download. After processing, tap the share icon and choose Save to Files to store the video. For 1080P+ quality, provide Bilibili cookies first. Works on iOS 15 and later.

Common reasons: (1) Region-locked content - some videos are only available in China, (2) VIP-only content requires cookies from a VIP account, (3) Very new videos may have incomplete CDN entries, (4) Some bangumi episodes require additional authentication. Try refreshing and retrying, or try a different quality option.

Yes. We use yutto, an open-source Bilibili downloader that handles WBI authentication locally. Cookies are used only for the current download session and never stored on our servers. Downloaded content is for personal offline viewing only. Respect copyright and do not redistribute downloaded content.