Want to extract the audio from a video — a song, podcast, lecture, or speech? Converting MP4 to MP3 strips out just the audio track and saves it as a playable MP3 file. Here's how to do it for free in seconds.
Step-by-step: Convert MP4 to MP3 free
Go to Fourmeld File Converter
Open fourmeld.com/files — no account needed, works on any device.
Upload your video file
Click Upload and select your MP4, MKV, AVI, MOV or WebM file.
Select MP3 as output
Choose MP3 from the audio output formats. You can also choose WAV, AAC or OGG if preferred.
Convert and download
Click Convert. The audio is extracted and saved as an MP3. Download immediately.
Supported video input formats
Common uses for MP4 to MP3 conversion
- Podcasts: Extract audio from recorded video podcasts to publish as audio
- Lectures: Extract audio from lecture recordings to study on the go
- Music videos: Save the audio track of a concert or music video
- Speeches: Extract audio from recorded presentations
- Smaller file size: MP3 is 90–95% smaller than the original video file
MP3 vs WAV — which to choose?
MP3 — works everywhere, small file size, slightly compressed audio. Best for general use, streaming, podcasts, phone storage.
WAV — uncompressed, lossless audio quality, much larger file size. Best for music production, professional audio editing.
Convert MP4 to MP3 Free — Instant Download
Extract audio from any video format. No signup, no watermark, no limits.
Convert Files Free on Fourmeld →FAQs
Does converting MP4 to MP3 reduce audio quality?
The output MP3 matches the audio quality of the original video's audio track. If the video had 128kbps audio, the MP3 will be 128kbps. There is no additional quality loss in the conversion.
Can I convert a 1-hour video to MP3?
Yes, but upload times depend on your internet connection. A 1-hour video at standard quality is typically 300–500MB, which Fourmeld supports.
Can I do this on my iPhone?
Yes — open Safari on your iPhone, go to fourmeld.com/files, upload from your Files app, and download the MP3.