How to Convert Bilibili Video to MP3 5 Working Methods (Free & Pro) 2026

Bilibili has no download button just like the YouTube.

Right-click the video. Nothing. Check the menu. Nothing. The audio you want is right there, playing in your browser, but you can’t save it. Classic.

I test Bilibili downloaders every few months. Most of them break. Some download video with no sound. Others add watermarks. And the “free online converters”? Half of them are just ad farms.

So I put together this guide. Five methods. Tested in JAN 2026. From free online tools to a pro-level recorder that never fails. Pick the one that fits your situation.

Quick Answer: Which Method Should You Use?

Short version: If you just need one file quickly, try an online converter. If you want studio-quality audio with zero hassle, skip to Method 5 (Cinch Audio Recorder).

Here’s the breakdown:

Method 1: Online Converters (Free & Fast)

Online converters are the quickest option. No software to install. Just paste a URL and download.

Tools I tested:

• 9xbuddy – Works for most Bilibili videos. Simple interface.
• SaveFrom.net – Hit or miss. Sometimes fails on longer videos.
• Y2mate – Works, but the ads are aggressive.

How to use (9xbuddy example):

1. Copy the Bilibili video URL from your browser.
2. Go to 9xbuddy.com.
3. Paste the URL and click “Download.”
4. Select MP3 format and quality.
5. Download the file.

Pros:

• Free
• No installation
• Works on any device with a browser

Cons:

• Audio quality is usually 128kbps. Sounds flat.
• Lots of popup ads. Some sites try to install browser extensions.
• Fails on certain videos. I tested a 2-hour livestream archive. It just timed out.

Works on my laptop. Fails on my phone browser. The mobile version of these sites is a mess.

Method 2: Browser Extensions

If you download Bilibili audio regularly, a browser extension saves time. One click, done.

Extensions I tested:

• Video DownloadHelper (Firefox/Chrome) – The most reliable one I’ve found.
• Bilibili Helper – Specifically for Bilibili, but gets removed from Chrome Web Store frequently.

How to use (Video DownloadHelper):

1. Install the extension from your browser’s store.
2. Go to the Bilibili video page.
3. Click the extension icon. It detects the video stream.
4. Select the format (usually MP4 first, then convert to MP3).
5. Download.

Pros:

• Convenient for frequent downloads
• Works directly in your browser

Cons:

• Chrome removes these extensions often. You might install one today and find it gone next week.
• Most extensions download video, not audio. You’ll need a separate tool to extract MP3.
• Security risk. Some extensions collect browsing data.

I prefer this method for quick grabs. But I don’t trust it for important files. Too unreliable.

Method 3: Mobile Apps (Android/iOS)

Want to download Bilibili audio directly on your phone? Your options are limited.

Android:

• Snaptube – Works well. Supports Bilibili. But you have to sideload it (not on Google Play).
• VidMate – Similar to Snaptube. Also requires sideloading.

iOS: Honestly? There’s almost nothing. Apple blocks these apps. The few that exist get removed quickly.

How to use (Snaptube on Android):

1. Download Snaptube APK from their official site.
2. Install it (you’ll need to enable “Install from unknown sources”).
3. Search for the Bilibili video inside the app.
4. Tap download and select MP3.

Pros:

• Download directly on your phone
• No computer needed

Cons:

• iOS users are out of luck.
• Android apps require sideloading. Security risk.
• Ads everywhere. Snaptube’s free version is basically an ad delivery system.

If you’re on iPhone, skip this method. Use a desktop solution instead.

Method 4: Desktop Video Downloaders

Desktop software is more reliable than online tools. Better quality, fewer failures.

Tool I recommend:

• 4K Video Downloader – Clean interface, works with Bilibili, supports batch downloads.

How to use:

1. Download and install 4K Video Downloader.
2. Copy the Bilibili video URL.
3. Click “Paste Link” in the app.
4. Select “Extract Audio” and choose MP3 format.
5. Click Download.

Pros:

• More reliable than online tools
• Better audio quality (up to 320kbps if the source supports it)
• Batch download multiple videos

Cons:

• Free version limits you to 30 downloads per day.
• Still depends on Bilibili’s servers. If the video is protected or uses a weird format, it fails.
• You’re downloading video first, then extracting audio. Takes longer.

This is my go-to for bulk downloads. But when it fails, it fails hard. No error message, just… nothing.

Method 5: Cinch Audio Recorder – The Pro Way

Here’s the thing about Methods 1-4: they all depend on Bilibili’s servers. If Bilibili changes something, or if the video uses DRM, or if the format is unusual, those tools break.

Cinch doesn’t care about any of that.

Cinch Audio Recorder captures audio directly from your system sound. Whatever plays through your speakers, Cinch records. Bilibili, Spotify, YouTube, a random livestream—doesn’t matter. If you can hear it, Cinch can save it.

Why I use Cinch for Bilibili:

• 320kbps quality. No compression artifacts. Sounds like the original.
• Auto song detection. It splits tracks automatically. No manual cutting.
• ID3 tags. Artist, title, album art—all added automatically.
• No ads, no watermarks. Clean software. I’ve used it for 3 years.
• 100% success rate. It doesn’t depend on Bilibili’s API. It just records what you hear.

How to use Cinch:

1. Open Cinch Audio Recorder.
2. Select your audio source (system sound).
3. Play the Bilibili video in your browser.
4. Cinch automatically detects and records the audio.
5. When done, your MP3 is saved with proper tags.

Is it legal?

Unlike converters that try to crack the video stream, Cinch just records the audio output—like a cassette tape recording from the radio. For personal use, this is generally fine. Just don’t redistribute copyrighted content.

 

Troubleshooting: Common Issues

“My downloaded file has no sound.”

This is the most common complaint. Online converters grab the video stream but miss the audio track—especially for videos with separate audio/video streams (DASH format).

Fix:

1. Try a different converter. Some handle DASH better than others.
2. Use a desktop downloader like 4K Video Downloader—it merges streams properly.
3. Best option: Use Cinch. It records the actual audio output, so stream format doesn’t matter.

“The online tool can’t parse the Bilibili URL.”

Bilibili uses multiple URL formats. Some tools only recognize bilibili.com/video/BVxxxxxx, not b23.tv short links or mobile URLs.

Fix:

1. Copy the URL from a desktop browser, not the mobile app.
2. Make sure the URL starts with https://www.bilibili.com/video/.
3. If it still fails, use Cinch—it doesn’t need to parse URLs at all.

“Mobile download keeps failing.”

Phone apps are unreliable for Bilibili. The platform actively blocks third-party downloaders, and apps like Snaptube get patched out frequently.

Fix:

1. Update your app to the latest version.
2. Clear the app cache and try again.
3. If nothing works, switch to a desktop method. Mobile is just not reliable for Bilibili.

“The audio quality sounds terrible.”

Free tools compress audio to 128kbps. That’s why vocals sound muddy and instruments lose detail. The original Bilibili stream might be 192kbps or higher, but converters downsample it.

Fix:

1. Look for a “high quality” or “320kbps” option in the converter (rare, but some have it).
2. Use Cinch—it records at 320kbps, preserving the original stream quality.

“The video is region-locked. I can’t access it.”

Some Bilibili content is only available in China. Converters can’t bypass this.

Fix:

1. Use a VPN to access the video first.
2. Once the video plays in your browser, use Cinch to record the audio. The VPN handles access; Cinch handles recording.

FAQ

Can I download Bilibili audio on iPhone?

No reliable free app exists for iOS. Apple removes video downloaders aggressively. Your best options: use Cinch on a Mac, try an online converter in Safari (unreliable), or download on a PC and transfer the file to your phone.

Is it legal to download audio from Bilibili?

For personal use, recording audio is generally permitted in most countries. Redistributing copyrighted content is not. Cinch records system audio—similar to recording from radio—which is legally distinct from cracking DRM.

Why do some videos fail to download?

Bilibili uses multiple streaming formats (FLV, DASH, HLS). Some videos have DRM protection. Online tools can’t handle all formats. Cinch bypasses this entirely by recording the audio output directly—format doesn’t matter.

What’s the best audio quality I can get?

Online converters typically output 128kbps. Desktop downloaders can reach 192-320kbps if the source supports it. Cinch records at up to 320kbps, matching whatever quality plays through your speakers.

Can I download audio from Bilibili livestreams?

Most converters don’t support livestreams—they only work with uploaded videos. Cinch is the exception. Since it records system audio in real-time, you can capture livestream audio as it plays. Just start recording before the stream begins.

Conclusion

Five methods. Each has its place.

• Online converters: Quick and free, but low quality and unreliable.
• Browser extensions: Convenient, but security concerns.
• Mobile apps: Android only, and full of ads.
• Desktop downloaders: Better quality, but still fails on protected content.
• Cinch Audio Recorder: The only method that works 100% of the time, with studio-quality output.

If you’re serious about audio quality—or just tired of tools that randomly fail—Cinch is the answer. I’ve been using it for years. It just works.

Tested in JAN 2026. Tools and methods verified on Windows 11 and macOS Sonoma.