Naiara

Your video.
Just the audio.
As MP3.

You keep the sound. The video picture is left out.

Convert my file

We don't keep your files after converting them.

Got several? Open your workspace

What do you want to convert?

Or drag it here · Up to 50 MB

Audio only

You keep the sound. The video picture is left out.

MP3 uses lossy compression and plays almost anywhere, ideal for listening and sharing. The first track is extracted; voices, music and effects stay together.

Extracts the first audio track. The video must have sound and be no longer than 10 minutes.

Processed only for this conversion. The original and the result are deleted from the server when it's done.

Start with what you want to do.

Pick the result. We'll set up the conversion.

Browse all formats

What file do you have?

Pick its category and we'll show you what you can do with it.

My file is PDF. I need it as…

TXTText onlyJPGOne image per pagePNGOne image per pageWEBPOne image per pageDOCXEditable contentPPTXEditable contentXLSXDetectable tablesMDEditable content

One, ten,
or all at once.

Mix formats in the same queue, check the preview and download everything in a ZIP. Unlimited files per batch, free.

Open my workspace
Memories.jpgPDF
Presentation.docxPDF
Interview.mp4MP3

Example layout · your files are only processed when you press Convert.

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Naiara Free

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  • Every format and tool
  • Unlimited files per batch and ZIP download
  • Previews and private files
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€9.90 / month

One subscription for AI and your restorations.

  • AI features: summarise, translate and rewrite
  • No ads in any tool
  • 10 standard restorations every month
  • Everything in Free included

Renews automatically every month. Cancel from your account. Restoring and colorizing uses 2 credits. Monthly restorations don't roll over; credits bought in packs are kept. Technical limits per file still apply: 50 MB and up to 10 minutes of audio or video.

Changing formats should be this easy.

Your files are never published and don't appear in your restoration history.

  1. 1

    Choose your file

    Select one of the 54 supported formats, up to 50 MB.

  2. 2

    Tell us the format you need

    You'll only see options that work with your file. The conditions of each conversion appear before you start.

  3. 3

    Download and get on with your day

    Save the result from this tab. If you convert a multi-page PDF to images, you'll get them together in a ZIP.

How to extract audio from an MP4 as MP3

Sometimes all you need from a video is the sound: an interview to transcribe, a recorded lecture to listen to in the car, a song from a rehearsal or the voices from a meeting. Converting to MP3 gives you a much smaller file that plays on any phone, computer or car stereo.

This converter pulls the audio track out of your MP4 and saves it as MP3. The picture is left out.

Step by step

  1. Click Select file and choose the .mp4 video (up to 50 MB and 10 minutes).
  2. Check that Convert to shows MP3.
  3. Click Extract audio as MP3 and keep the tab open.
  4. Download the MP3.

MP3 quality

The audio is encoded as high-quality variable-bitrate MP3, averaging around 190 kbps, a level where voice and music sound good and the file stays light. MP3 is lossy, but it plays on practically any device.

If you plan to edit the audio afterwards, consider WAV as the target instead: it is uncompressed and avoids loss at each step.

Which track is extracted, and limits

The first audio track of the video is extracted, with voices, music and effects mixed together just as they sound in the video. If the MP4 has several tracks, such as different languages, only the first is used. The video's metadata is not copied to the MP3.

The video must have sound: a silent recording will show a warning. Videos up to 10 minutes, up to 4K and 50 MB are accepted.

If you only want the sound to make a transcript, MP3 is fine; for podcast editing or music production, extract to WAV or FLAC first and export to MP3 at the end.

Frequently asked questions

What bitrate is the MP3?
High-quality variable bitrate, averaging around 190 kbps.
Can I extract just part of the audio?
No, the full audio track is extracted. Trim the MP3 afterwards if needed.
What if the video has several languages?
The first audio track is extracted.
What is the maximum length?
10 minutes of video and 50 MB per file.
Can I convert YouTube videos?
This converter works with files already on your device; it does not download videos from websites.