Turn downloaded YouTube MP4 files into MP3 audio
You have a folder of MP4 videos saved from YouTube, but all you want is the sound for your phone, car stereo or MP3 player. Playing a video just to hear a song or a talk wastes space and battery. YouTube MP4 To MP3 Converter is a Windows program that pulls the audio out of those files and saves it as MP3.
Quick facts
- Version: 2.0
- Platforms: Windows ME, 2000, XP, 2003, Vista and 7
- Price: Freeware
- File size: about 3.18 MB
- Vendor: hihisoft

Key features
Convert saved YouTube MP4 videos to MP3 audio
You point the program at MP4 files you have already downloaded, and it gives you MP3 audio files. It works on files on your disk, so it doesn't download anything from YouTube itself.
Convert many files in one go with batch mode
If you have a whole set of videos, batch conversion lets you process them together instead of one at a time.
A small, free download
The installer is about 3 MB, and the program is offered as freeware.
Who it's for
It suits you if you already keep YouTube MP4 files on a Windows PC and want audio-only copies for music or spoken content. It is a plain converter, so it won't suit you if you want to edit audio or fetch videos from the web.
Pros and cons
- Pro: Free to use.
- Pro: Batch mode for converting several files together.
- Pro: Very small download.
- Con: Windows only.
- Con: It targets MP4 to MP3 only.
- Con: It is an older release, listed for Windows versions up to Windows 7.
- Con: The vendor points to a separate commercial MP4 To MP3 Converter, so this free version is the basic one.
FAQs
Is it free?
Yes, the vendor's page labels it freeware.
Does it download videos from YouTube?
No. It converts MP4 files you have already saved.
Can I convert several files at once?
Yes, it supports batch conversion.
Which Windows versions does it run on?
The vendor lists Windows ME, 2000, XP, 2003, Vista and 7.
System requirements
- Windows ME, 2000, XP, 2003, Vista or 7
- Pentium II 466 MHz processor
- 16 MB RAM