Filenary

Video to MP3 Converter

Extract the audio track from your MP4 and other video files as MP3.

Drop your file here

or click to browse

Choose File

On first use, a ~30 MB conversion engine is downloaded to your browser (one time only).

This file is processed in your browser and never uploaded to a server.

How It Works

  1. 1. Drop your file here

  2. 2. Processing…

  3. 3. Download

Features

  • MP4, WebM, MOV support
  • Adjustable audio quality
  • No server uploads

Frequently Asked Questions

Does this affect video quality?
No, only the audio track is extracted; your original video file is unchanged.
How long does it take?
Depending on file size and your device's performance, it can take from a few seconds to a few minutes.
Which audio quality (bitrate) should I choose?
128k is fine for speech-only audio, while 192k–320k preserves more detail for music; you can pick from 128k, 192k, 256k or 320k before extracting.
Do I need to install any software?
No — the extraction runs on a real FFmpeg engine that loads directly in your browser tab the first time you use the tool, adding a few seconds before conversion starts.
Is there a file size limit?
There's no hard limit, but since extraction happens entirely on your device, very large video files take longer and use more memory, especially on older devices.

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Add this tool to your website

Copy the code below and paste it into any page. It's free, needs no sign-up, and files are processed in your visitors' own browsers.