Bilibili Audio Downloader

What it does

Audio or video

Each time you paste a link it asks: audio only (MP3), or the full video merged to MP4 with ffmpeg.

Quality follows your account

Guest gets 480p video, logged in gets 1080p, premium gets 1080p60/4K. Audio is full quality with no login needed.

One video, a collection, or a whole channel

Paste a single link, a season/collection, or an uploader's page to pull every video they've posted.

Resume and don't stall

Re-running skips files you already have. Long videos download in parallel segments so they don't hang.

How to use

Install and run

Install it globally from npm, then type bad:

                        npm i -g bili-audio-downloader

                        bad

ffmpeg comes bundled, so there's nothing else to install.

Audio or video?

It asks first. Press 1 for audio (saved as MP3) or 2 for video (merged to MP4). Audio needs no login — if that's all you want, skip the next step.

Cookie — only if you want 1080p video

Audio and 480p video work with nothing. A cookie is only needed to unlock 1080p and up for video, because Bilibili keeps HD behind login (4K and 1080p60 also need premium).

Grab it from a logged-in browser: F12 → Network, click any request to bilibili.com, and copy the whole Cookie request header. It has to include SESSDATA.

Skip document.cookie — SESSDATA is HttpOnly and never shows up there. That trips a lot of people up.

Paste a link

A single video:

https://www.bilibili.com/video/BV1UBmUBqEDe/

A whole collection:

https://space.bilibili.com/1437582453/lists/1235710?type=season

Every video from one uploader:

https://space.bilibili.com/313580179/upload/video

Collections and uploader pages open a menu — preview the list first, or just download everything. Files go to downloads/ (video ends up in downloads/video/), and re-running only fills in what's missing.

🎵 Bilibili Audio Downloader