Extract MP3 Audio from Your MP4 Video

Just want the audio? Drop your MP4 into Profi PDF and pull out a clean MP3 in seconds — free, private, and zero hassle.

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工作原理

MP4 to MP3 Converter — Extract Audio from Video Online Free | Profi PDF
1
Upload Your MP4. Drag your video into Profi PDF — movies, recordings, Zoom calls, YouTube downloads, whatever. We take them all.
2
Profi PDF Strips the Audio. Our engine pulls the audio track out of your video and converts it to a crisp MP3. Takes seconds, not minutes.
3
Download Your MP3. Hit download and you are done. Play it, share it, edit it, or transcribe it — the MP3 is all yours.

完整音频和视频工具箱

转写、转换、提取 — 所有音频和视频处理，一处搞定。

AI 转写

将语音转为文本，包含说话人标签、时间戳，准确率 95% 以上。

格式转换

MP3、WAV、M4A、OGG、FLAC — 即时转换任何音频或视频格式。

视频转音频

从 MP4、YouTube、Zoom 录制文件等提取音频。

极速处理

大多数文件三分钟内处理完成。无需久等。

无需注册
立即开始
100% 安全
自动删除
基于浏览器
无需安装

用户喜爱的工具

播客主、研究人员、营销人员和远程团队每天都在使用我们的音频和视频工具。

Feb 11
Ripped my whole lecture library
Had 30+ recorded lectures in MP4. Needed audio only for my commute. Profi PDF converted them all super fast and the quality is perfect.
Lena FischerInstagram logo
Lena Fischer
Jan 29
No ads, no BS — just works
Every other converter site is a minefield of popups. Profi PDF is clean, instant, and free. Bookmarked it permanently.
Chris OkaforInstagram logo
Chris Okafor
Feb 7
Saved my podcast episode
Recorded an interview on video but only needed the audio for my podcast feed. Profi PDF extracted it perfectly. Sounded pro.
Mia ThorntonInstagram logo
Mia Thornton
今天有 824 人转换了文件
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为什么选择我们的音频和视频工具

Rip Audio in a Flash

No waiting around. Profi PDF extracts and converts your MP4 audio at crazy speed — most files are done before you can blink.

Crystal-Clear Quality

Profi PDF preserves the original audio quality during extraction. You get a high-bitrate MP3 that actually sounds good.

Works on Any Video

Not just MP4. Throw in MOV, AVI, MKV, WebM, or FLV — Profi PDF handles all major video formats without breaking a sweat.

Podcast & Music Ready

Extract voiceovers, background music, or full recordings and drop them straight into your podcast editor or DAW. Profi PDF makes it effortless.

Transcribe Right After

Once you have your MP3, run it through Profi PDF AI transcription and get an accurate text transcript in minutes. One platform, full workflow.

Your Files, Your Business

Uploads are encrypted and wiped from Profi PDF servers the moment conversion is done. Nobody sees your video — ever.

Rip Audio in a Flash

No waiting around. Profi PDF extracts and converts your MP4 audio at crazy speed — most files are done before you can blink.

Crystal-Clear Quality

Profi PDF preserves the original audio quality during extraction. You get a high-bitrate MP3 that actually sounds good.

Works on Any Video

Not just MP4. Throw in MOV, AVI, MKV, WebM, or FLV — Profi PDF handles all major video formats without breaking a sweat.

Podcast & Music Ready

Extract voiceovers, background music, or full recordings and drop them straight into your podcast editor or DAW. Profi PDF makes it effortless.

Transcribe Right After

Once you have your MP3, run it through Profi PDF AI transcription and get an accurate text transcript in minutes. One platform, full workflow.

Your Files, Your Business

Uploads are encrypted and wiped from Profi PDF servers the moment conversion is done. Nobody sees your video — ever.

MP4 to MP3 在线

无需注册。选择工具即可开始。

Extract MP3 from MP4
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常见问题

关于我们的音频和视频转写及转换工具的快速解答。

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MP4 to MP3 Converter — Extract Audio from Video Online Free | Profi PDF - Profi PDF