What video formats can I upload?

MP4, MOV, AVI, MKV, and WebM. The audio track is extracted and saved as an MP3 regardless of the input format.

What quality is the extracted MP3?

The audio is extracted at the original bitrate from the video file. If the video had 192kbps audio, the MP3 will be 192kbps.

Is there a file size limit for videos?

Videos up to 500MB are supported. Larger files are processed on our servers — your browser won't slow down.

How long does processing take?

A few minutes depending on video length and size. You'll be able to download the MP3 as soon as processing completes.

Why would I extract audio from a video?

Common uses: saving a podcast recorded as video, extracting a music performance from a video clip, creating an audio version of a recorded lecture, or archiving speech from an interview.

MP4 to MP3

Extract and download the audio track from any MP4 video as MP3.

Drop your file here

or click to browse · max 500MB · .mp4,.mov,.avi,.mkv,.webm

🔒 Processing happens in your browser — files are never uploaded

How it works

Select file

Drop your video file in the upload area.

Browser processes

Your file is processed locally using WebAssembly.

Download result

Get your file — nothing ever leaves your device.

Frequently asked questions

Convert MP4 to MP3 Online Free — Extract Audio from Video

Want just the audio from a video — a lecture, podcast recording, music performance, or interview? Our MP4 to MP3 converter strips the video track and extracts the audio as a high-quality MP3 file. Works with MP4, MOV, AVI, and other common video formats. No video editing software needed — upload the video and download the MP3 in minutes.

High-quality audio

Audio is extracted at the original bitrate from the video file — no re-encoding artifacts or quality loss.

Multiple formats accepted

Works with MP4, MOV, AVI, MKV, and WebM video files. The output is always a standard MP3.

Works on large files

Long videos and large files are handled on our servers — your browser won't slow down or freeze.

Turn a recorded webinar into a podcast, save a music video's audio for offline listening, or extract dialogue from a video clip. MP3 files play on every device and take up a fraction of the space of the original video.