MP3 to GSM Converter

Batch convert mp3 files to gsm online. Change mp3 to gsm on Windows, Mac, iPhone and Android in 2 clicks.

Select files for conversion or drag and drop them to the upload area.
Your files are securely protected and available only to you.
All files are automatically deleted from our servers after 1 hour.

How to convert MP3 files to GSM online?

Step-by-step instructions for converting mp3 files to gsm

Upload MP3-file

Click "Choose File" button to select a mp3 file on your computer. MP3 file size can be up to 100 Mb.

Convert MP3 to GSM

Click "Convert" button to start conversion.

Download your GSM

When the conversion process is complete, you can download the GSM file.


  • ❓ How can I convert MP3 to GSM?
    First you need to add file for conversion: drag and drop your MP3 file or click the "Choose File" button. Then click the "Convert" button. When MP3 to GSM conversion is completed, you can download your GSM file.
  • ⏱️ How long does it take to convert MP3 to GSM?
    Audio conversion is pretty fast. You can change MP3 to GSM in a few seconds.
  • 🛡️ Is it safe to convert MP3 to GSM on AnyConv?
    Of course! We delete uploaded files immediately, and converted ones after 1 hour. No one has access to your files. File conversion (including MP3 to GSM) is absolutely safe.
  • 💻 Can I convert MP3 to GSM on Mac OS or Linux?
    Yes, you can use AnyConv on any operating system that has a web browser. Our MP3 to GSM converter works online and does not require software installation.

Information about MP3 and GSM file formats

Name MP3 GSM
Full name MP3 - MPEG-1 or MPEG-2 Audio Layer III GSM, Global System for Mobile Audio File
File extension .mp3 .gsm
MIME type audio/mpeg, audio/MPA, audio/mpa-robust audio/x-gsm
Developed by Fraunhofer Institute Unknown
Type of format Digital audio Audio
Description MPEG-1 or MPEG-2 Audio Layer III, more commonly referred to as MP3, is an audio coding format for digital audio that uses lossy data compression. It is a common audio format for consumer audio streaming or storage and a de facto standard of digital audio compression for the transfer and playback of music on most digital audio players. GSM is the file extension used for audio files that store solid digital audio data on a computer or mobile device. This file format is generally used by cell phones. The GSM file format was designed particularly for telephone use in Europe and optimized for recording voice audio like any telephonic conversation.
Technical details Lossy compression is designed to reduce significantly the amount of data required to represent the audio recording and still sound like a faithful reproduction of the original uncompressed audio. For example, an MP3 file created using the setting of 128 kbit/s will result in a file about 1/11 the size of the CD file created from the original audio source. GSM files can be compressed and uncompressed to reduce the size of the file. This is often done by using lossy compression. The data can be a raw bitstream in an audio coding format. However, it is generally rooted in an audio data format or a container format with a defined storage layer.
File conversion MP3 conversion GSM conversion
Associated programs VLC media player, MPlayer, Winamp, foobar2000. VideoLAN VLC media player, SoX, NCH Switch
MP3 to GSM conversion quality rating:
4.8 (2817 votes)
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