HD MP4 Video
Download Bilibili Videos in HD MP4
Save every resolution Bilibili offers without signing in (up to 720p) as MP4 with the audio merged in.
Explore MP4 downloads MP4 · H.264 · AV1
⚡ MP4 with sound · No added watermark · MP3 · CC subtitles
Bilibili Video Downloader: MP4 With Sound, No Added Watermark
Paste a public Bilibili link to save the video as MP4 with sound, exactly as Bilibili streams it, with no extra watermark or overlay added. You can also export the audio as MP3, the CC subtitles as SRT, and the cover image.
Try test samples:
⚡ 1080p, 4K & 8K MP4🎵 320kbps MP3 Audio💬 CC Subtitles & Danmaku
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Your download options will appear here
Paste a public Bilibili link above to see available video, audio, subtitle, and cover formats.
On your device
Preparing your video
Getting everything ready for your export.
Keep this tab open. Your original stays unchanged.
Recent in this browser session
Fast & Free Media Extraction
Comprehensive Bilibili Media Downloader Suite
Download high-definition MP4 videos, convert to 192kbps MP3 audio, extract bilingual CC subtitles, and export ASS danmaku.
Clean Downloads
No Added Watermark
Files are saved exactly as Bilibili streams them. A logo the uploader added stays; for your own clips, Watermark Studio covers one corner.
How it works Runs in Browser
Convert Bilibili to 192kbps MP3 Audio
Extract crystal-clear MP3 and M4A audio tracks from Bilibili songs, AMVs, podcasts, and video soundtracks.
MP3 & M4AExtract CC Subtitles (SRT) & Danmaku (ASS)
Export bilingual CC closed captions as SRT transcripts and scrolling bullet comments as ASS files.
Subtitles & danmakuDownload HD Video Master Covers & Artwork
Save original full-resolution video thumbnail posters and anime banners directly from the source CDN.
Download cover artBatch Download Multi-Part Bilibili Series & Playlists
Queue multiple episodes from course playlists, multi-P video series, and anime seasons in one place.
Browse a seriesSimple 3-Step Guide
How to Download Bilibili Videos Online for Free
Follow these 3 easy steps to save high-quality MP4 videos, MP3 music, subtitles, and danmaku directly to your device.
- 01BV / AV / b23.tv
Copy the Bilibili Video URL
Copy the video link, BV identifier, AV ID, or b23.tv mobile share link from Bilibili.
- 02Instant Parser
Paste Link & Fetch Media Streams
Paste the URL into the input box above and click Fetch streams to inspect all available video, audio, and subtitle options.
- 03One-Click Save
Select Quality & Download File
Select your MP4 resolution, 192kbps MP3 audio, or CC captions and click Download to save.
⚡1-Click Browser Shortcut
Download Bilibili Videos with 1-Click Bookmarklet
Save Bilibili videos instantly while browsing bilibili.com without copying and pasting URLs. Compatible with Chrome, Safari, Edge, and Firefox.
01. Drag button
Drag the button below to your Bookmarks Bar (Ctrl/Cmd+Shift+B).
02. Browse Bilibili
Open any video on bilibili.com in your browser.
03. Click & Download
Click the bookmark to immediately parse & save MP4/MP3.
Drag me to your bookmarks bar
✦Download BilibiliTechnical Specifications & Architecture
Bilibili Media Stream Formats & Codec Matrix
Learn how Bilibili streams are structured, how video and audio are synchronized, and which player delivers optimal playback.
Supported Format Matrix
HTML5 / WebAssembly / Direct CDN| Media Type | Quality / Specs | Video Codec | Audio Spec | Supported Players |
|---|---|---|---|---|
8K / 4K Ultra HDUltra HD | 7680x4320 / 3840x2160 @ 60fps | AV01 (AV1) / HEVC (H.265) | AAC 192–320 kbps (48kHz) | VLC, PotPlayer, IINA, MPV |
1080P Full HD / 720PUniversal | 1920x1080 / 1280x720 @ 60/30fps | AVC (H.264) / HEVC | AAC 132–192 kbps | All browsers, QuickTime, iOS/Android |
Studio Audio (MP3/M4A)Hi-Fi Audio | Lossless AAC stream / MP3 320k | N/A (Pure Audio) | Up to 320 kbps Stereo | Apple Music, Spotify Local, VLC |
CC Subtitles (SRT/JSON)Captions | Bilingual / Official CC Transcripts | UTF-8 Encoded SRT | Time-Coded Text | VLC, PotPlayer, YouTube, Aegisub |
Danmaku Comments (ASS)Danmaku | Full-Resolution Bullet Comments | Advanced SubStation Alpha | Dynamic Coordinates | PotPlayer, MPV, Danmaku2ASS, VLC |
Master Cover ArtworkMaster Art | Original Master Image (Up to 4K) | JPG / WebP Lossless | 16:9 Clean Banner | Standard Image Viewers, Wallpaper |
01 · Architecture
DASH Audio-Video Demuxing
Bilibili delivers modern high-resolution video and audio as separate DASH streams on edge CDNs. Our engine merges them directly into a synchronized standard MP4 container without re-encoding loss.
02 · Processing
Where Processing Happens
Downloads, merging video and audio tracks, MP3 encoding and watermark removal all run in your browser. Media goes straight from Bilibili to your device and is never uploaded to our servers.
03 · Data Handling
Data Handling
We do not host or index Bilibili media. Files are fetched from Bilibili’s public CDN for your request and are not kept afterwards. Standard server logs and analytics may record technical data such as IP address and page views; see our Privacy Policy.
Device Playback & Compatibility Guide
iPhone & iPad (iOS)
Tap Download in Safari -> tap the Downloads arrow -> open file in Files app -> tap Share -> Save Video to Camera Roll.
Android Devices
Tap Download in Chrome or Firefox. The MP4 video or MP3 audio saves directly to your Downloads folder and Gallery.
Windows & macOS
Plays natively in VLC, PotPlayer, IINA, QuickTime, or Windows Media Player. Drag and drop ASS files to view danmaku comments.
Need step-by-step instructions with audio fix and Camera Roll saving?Read the complete iPhone, Android & PC Guide →
Fair Use & Personal Backup Notice
BiliVideoDownloader.com is an open browser-based utility designed exclusively for personal study, research, education, and offline backup of publicly accessible media. We respect copyright and creator rights.
Got Questions?
Frequently Asked Questions About Bilibili Video Downloader
Everything you need to know about downloading Bilibili videos, MP4 quality, MP3 conversion, b23.tv links, and legal safety.
Should I use this tool or yt-dlp?
yt-dlp is a free open-source command-line program that supports many sites and gives more control over formats and batch jobs, but it must be installed and needs FFmpeg to merge streams. BiliVideoDownloader runs in the browser with no install, which suits occasional downloads from a phone or a shared computer.
What is Bilibili Video Downloader and how does it work?
Bilibili Video Downloader is a free online tool that parses public Bilibili video links (bilibili.com, BV IDs, AV IDs, and b23.tv shortlinks) to download high-definition MP4 videos, MP3 audio, CC subtitles (SRT), and Danmaku comments (ASS). The media goes straight from Bilibili's servers to your device.
How can I download Bilibili videos online for free?
Copy any public Bilibili video URL, paste it into the search box above, and click "Fetch streams". Choose the MP4 quality or MP3 audio and click Download. No registration or software installation is required.
Can I download Bilibili videos in 1080p 60FPS, 4K UHD, or 8K?
The downloader lists every quality Bilibili offers a logged-out viewer for that video, with the original frame rate and codec. In our October 2026 tests that was 720p at most, even for videos uploaded in 4K: Bilibili keeps 1080p, 1080p 60FPS, 4K and 8K for signed-in or premium accounts, and this site does not sign in.
How do I download Bilibili videos with synchronized sound?
Bilibili delivers high-definition video and audio as separate DASH streams. BiliVideoDownloader automatically muxes the high-bitrate video and audio streams together into a single, synchronized standard MP4 container ready for immediate playback.
Can I download Bilibili videos without a watermark?
This site adds no watermark: you get the video exactly as Bilibili streams it, without the player controls or danmaku. But many uploaders have Bilibili stamp their name and the Bilibili logo into the video itself, and that mark is in every copy, from any downloader. In our test of 7 popular videos, 5 had it and 2 were clean.
How do I convert Bilibili videos to MP3 audio?
Paste the video URL and open the Audio tab. You can save the original M4A (AAC) track, or convert it to a 192 kbps MP3 in your browser.
Does the downloader support b23.tv mobile shortlinks and BV IDs?
Yes! The downloader automatically resolves mobile b23.tv share links, canonical desktop URLs (bilibili.com/video/BV...), raw BV strings (e.g., BV1xx411c7mD), and classic AV IDs (e.g., av170001).
Can I download Bilibili CC subtitles and Danmaku bullet comments?
Yes. You can export official closed captions (CC) as standard UTF-8 SRT or JSON files, and export scrolling Danmaku bullet comments in ASS format compatible with VLC and PotPlayer.
Does Bilibili Video Downloader work on iPhone, Android, PC, and Mac?
Yes. It works seamlessly across all modern browsers including Safari on iPhone/iPad, Chrome on Android, and Chrome, Firefox, Edge, or Safari on Windows, macOS, and Linux.
Can I batch download multi-part Bilibili series and course playlists?
Yes! When you paste a link to a multi-P video, course playlist, or anime series, our episode selector detects all parts so you can switch episodes or queue up to 8 parts for batch downloading.
Is BiliVideoDownloader.com free and safe to use?
It is free to use and needs no account or plugins. Downloads, MP4 merging and MP3 conversion run in your browser: the media goes straight from Bilibili's servers to your device and never passes through ours, and we do not host Bilibili media. Standard server logs and analytics may record technical data such as your IP address; see the Privacy Policy.
Is it legal to download videos from Bilibili?
Downloading videos for personal, educational, offline backup, and fair use is generally acceptable. Always respect creator copyright and intellectual property rights, and do not distribute or commercialize copyrighted material without authorization.