MP4 to MP3 Offline – Extract Audio Without Upload

Drop your video file here

or click to select MP4, AVI, MOV files

Audio Extraction Settings

Video File Info

Loading video information...

Audio Quality Settings

Audio Bitrate

Higher bitrate = better quality but larger file

Sample Rate

Time Range (Optional)

Extract specific time range

Start Time (mm:ss)

End Time (mm:ss)

Leave empty to extract entire audio

Audio Extraction Results

Original Video

Loading...

Duration: -

Video Size: -

Has Audio: Yes

Extracted MP3

audio.mp3

Duration: -

Audio Size: -

Bitrate: -

Size Reduction: -

Audio Preview

How Our Offline MP4 to MP3 Converter Works

1

Upload Video

Select your video file. It stays on your device - never uploaded to our servers.

2

Extract Audio

FFmpeg.wasm extracts the audio track and converts it to MP3 format.

3

Download MP3

Get your MP3 file with high-quality audio extracted from your video.

Frequently Asked Questions

What video formats can I convert to MP3?

We support MP4, AVI, MOV, MKV, and most video formats that contain audio tracks.

What audio quality options are available?

You can choose from multiple bitrates: 320k (highest quality), 192k (standard), 128k (good), and 96k (compressed).

Does this preserve the original audio quality?

Yes, when using high bitrate settings (320k), the audio quality is preserved very close to the original.

MP4 to MP3 Offline Converter