mp4 mp3

Convert MP4 Video to MP3 Audio Online

Convert MP4 to MP3 online for free. Fast, secure file conversion with no registration required.

MP4 vs MP3

MP4 MP3
Full Name MP4 Video MP3 Audio
Category Video Audio
MIME Type video/mp4 audio/mpeg
File Extension .mp4 .mp3
Max Upload 500 MB

How to Convert MP4 to MP3

  1. Select your MP4 file using the upload area above
  2. Click "Convert to MP3" to start the conversion
  3. Wait for the conversion to complete
  4. Download your MP3 file

About MP4 Format

MP4 (MPEG-4 Part 14) is the most widely used video container format. It supports video, audio, subtitles, and metadata with efficient H.264/H.265 compression. The universal format for web video, streaming, and mobile devices.

About MP3 Format

MP3 (MPEG Audio Layer III) is the most popular audio format for music. It uses lossy compression to reduce file sizes by up to 90% while maintaining good perceptual quality. Supported by virtually all devices and players.

Frequently Asked Questions

Upload your MP4 file using the upload area above, then click "Convert to MP3". The conversion starts automatically and you can download the result when it's ready.

Yes, FileCraft's MP4 to MP3 converter is completely free with no registration, watermarks, or hidden fees. You can convert as many files as you need.

Yes. Your files are processed securely and automatically deleted from our servers after conversion. We do not store, share, or access your files.

Most video files convert in a few seconds. Larger files may take slightly longer depending on file size and complexity.

You can upload MP4 files up to 500MB for free conversion. For most use cases this is more than sufficient.

Other MP4 Conversions

89 formats

Convert to MP3

60 formats