Convert MP4 to MP3
Online Free

Extract audio from any video file in seconds. No software to install, no account needed. Upload your MP4 and download an MP3 — it's that simple.

Convert MP4 to MP3 →

How to Extract Audio from Video

1
Upload Your Video
Select or drag your MP4, AVI, MOV, MKV, or WEBM file. Files up to 500MB are supported.
2
Choose MP3 Output
Select MP3 as your target format from the dropdown. WAV, AAC, FLAC, and OGG are also available.
3
Download Your Audio
Hit Go and your MP3 will be ready to download in moments. Batch convert up to 5 files at once.

Supported Formats

Convert from any of these video formats to any audio format:

Video Input

MP4AVIMOVMKVWEBMFLVWMV

Audio Output

MP3WAVAACFLACOGGM4A

Why Use RnBulkTools for Video Conversion?

No Software Required

Everything runs in your browser and on our server. No need to download FFmpeg, Handbrake, or any other software. Just upload and convert.

Batch Conversion

Need to extract audio from multiple videos? Queue up to 5 files and convert them all in one go.

Privacy

Uploaded files are processed and immediately deleted. Nothing is stored on our servers after conversion completes.

Free, No Limits on File Size

Convert files up to 500MB for free. 10 free conversions every 2 hours, no signup required. Need more? Starter plan gives you 100 operations per 2 hours.

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