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Converter MP4 para MP3

Conversor online gratuito de {from} para {to}.

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Accepted: MP4 files · Max 100 MB per file

mp4 mp3

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Need to convert MP4 to MP3? MegaConvert makes it easy. Upload your MPEG-4 Part 14 (MP4) file and get a MPEG Audio Layer III (MP3) file in seconds — no software to install, no signup required. Whether you need this conversion for social media, video editing, device compatibility, web streaming / archival, our online converter handles it instantly. Free for files up to 25MB, with support for larger files up to 2GB.

How to Convert MP4 to MP3 Online

  1. 1
    Upload your MP4 file

    Click the upload area or drag and drop your MP4 file. Files up to 25MB are free. Larger files are supported with pay-per-use.

  2. 2
    Choose MP3 as output format

    MP3 is automatically selected on this page. You can adjust conversion settings if needed.

  3. 3
    Click Convert

    Hit the Convert button to start processing. Your file will be converted using our high-performance servers.

  4. 4
    Download your MP3 file

    Once conversion is complete, click Download to save your new MP3 file. Free files are available for 1 hour.

Why Convert MP4 to MP3?

  • **Universal compatibility** — MP3 works on virtually every device, operating system, and application without additional software.
  • **Reduce file size** — Converting between formats can significantly reduce file size, making files easier to share via email or cloud storage.
  • **Software requirements** — Your software or platform may require MP3 format specifically. Converting ensures full compatibility.

MP4 vs MP3 — Format Comparison

Feature MP4 MP3
Full Name MPEG-4 Part 14 MPEG Audio Layer III
Developer Moving Picture Experts Group (MPEG) Fraunhofer Society
First Released 2001 1993
Category Video Audio
Extension .mp4 .mp3
MIME Type video/mp4 audio/mpeg

Re-encoding video may reduce quality. Use MKV for lossless container conversion.

Sobre o Formato MP4

Most widely used video container format supporting H.264, H.265, and multiple audio codecs.

Full name: MPEG-4 Part 14

Developer: Moving Picture Experts Group (MPEG) (2001)

Sobre o Formato MP3

Most popular lossy audio compression format, widely used for music distribution.

Full name: MPEG Audio Layer III

Developer: Fraunhofer Society (1993)

Perguntas Frequentes

Upload your MP4 file to MegaConvert.io, select MP3 as the output format, and click Convert. Your converted file will be ready to download in seconds. No software installation required.
Yes! Files up to 25MB can be converted for free, up to 3 times per day. For larger files, pay-per-use pricing starts at just $2 for files up to 100MB.
Absolutely. All uploaded files are encrypted in transit (HTTPS), scanned for viruses, and automatically deleted after conversion. We never share or access your files.
Free users can convert files up to 25MB. Pay-per-use supports files up to 2GB. Subscribers get up to 2GB with priority processing.
Most widely used video container format supporting H.264, H.265, and multiple audio codecs. Developer: Moving Picture Experts Group (MPEG) (2001).
Most popular lossy audio compression format, widely used for music distribution. Developer: Fraunhofer Society (1993).