Drop file here. 150 MB maximum file size.
Audio format designed for telephony in Europe optimized for l' voice recording, as well as a telephone conversation.
Audio format used by SBStudio; package containing audio data in block format; similar to a .PAC file, but containing only audio data.
Access powerful and secure free online GSM tools to convert, view, edit, merge, split, and compare GSM files β all without installing any software. Our tools support the .GSM (Global System for Mobile Audio File) file extension and run smoothly in any modern browser.
Select a tool below to explore features and manage your GSM files directly from your device with ease.
Chose or drag & drop your GSM file, click Convert to SOU, and download the SOU file. No registration needed.
Yes, all uploads are encrypted. Your files are auto-deleted after 24 hours.
Yes, our converter retains layout, fonts, and images as accurately as possible.
Fileproinfo converter engine works fast. You can convert GSM to SOU in a few seconds to couple of minutes for large size files with complex structure.
FileProInfo support manay file formats that allow you to convert GSM to 100s of file formats, without any limit, registration and downloading, 100% free and online GSM converter.
All converters in this list are manually verified & 100% free and working properly, however you must use these apps according to their respective terms & conditions.
This tool and page updated at: 12-Apr-2025
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