How to Convert MP4 to MP3 Without Losing Quality
Simple ways to pull the audio out of a video and keep it clear.
Read article →🎵
MP4 to MP3 Converter
Extract the audio from a video and save it as MP3. Everything runs in your browser — your file never leaves your device.
No registration required
Secure & private
Works on any device
Drop a video here
or click to browse — MP4, MOV, M4A, WebM and other common formats
Your MP3 is ready
Best for videos up to about an hour. Very long or very large files may run out of memory.
100% Private
Files are converted locally in your browser — nothing is uploaded.
Fast
No waiting on uploads. Conversion runs right on your device.
Free & Unlimited
No account, no watermark, no file limits.
How to convert MP4 to MP3
Three quick steps. Nothing to install and nothing leaves your device.
1
Add your video
Drag a video onto the box above or click it to browse your files.
2
Choose the quality
Pick a bitrate from 128 to 320 kbps. 192 kbps is a good balance of size and sound.
3
Convert & download
Preview the audio in the player, then download your MP3.
Learn about Audio
Helpful guides on extracting audio and choosing the right MP3 quality.
Frequently asked questions
Quick answers about converting MP4 to MP3 with ConvertKit Lite.
Is it safe to convert my video here?
Yes. Conversion runs in your browser, so your file is not uploaded to a server.
Which file formats work?
MP4, MOV, M4A and WebM work in most browsers. Support depends on what your browser can decode, and Chrome handles the widest range.
Which MP3 quality should I choose?
192 kbps sounds good for most music and speech. Choose 320 kbps for the best quality, or 128 kbps for the smallest file.
Why did the conversion fail?
The video may have no audio track, use a format your browser can't decode, or be too large for your device's memory. Try a smaller file or Chrome.
Is there a file size limit?
There is no limit on our side. The whole file is decoded in memory, so videos longer than about an hour may fail on some devices.