Convert GSM to CAF
Fast, free GSM to CAF conversion — works in any browser
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gsm
GSM digital audio format
| File extension | .gsm |
|---|---|
| File category | audio |
| Programs | VLC media player Audacity Sox MPlayer |
| Tech description | https://en.wikipedia.org/wiki/Full_Rate |
| MIME type | audio/x-gsm |
| Developer | European Telecommunications Standards Institute (ETSI) |
Developed in Europe, this format was designed for mobile users. GSM is used for audio files that contain a large amount of audio information. Suitable for voice recordings, including recordings of phone calls. You can compress and archive a GSM file to achieve a different file size. The format is mostly used to create and store voice information. There are 4 types of this format that can be opened using different applications.
caf
Core Audio Format
| File extension | .caf |
|---|---|
| File category | audio |
| Programs | Apple QuickTime Player Apple iTunes VLC media player Audacity |
| Tech description | https://en.wikipedia.org/wiki/Core_Audio_Format |
| MIME type | audio/x-caf |
| Developer | Apple Inc. |
This audio file container was created by Apple's developers. CAF can store a lot of information: the artist's name, song duration, album and track names, and more. In terms of size, CAF files can exceed 4 GB. Since its introduction in 2005, the Core Audio Format has been used as an alternative to AIFF and WAV. It can use different codecs, so audio quality depends on the chosen encoding. CAF files are often used to store audio assets and sound effects.
FAQ
How to convert CAF to GSM?
Upload your CAF file, select GSM as the output format, and click Convert. The converted file will be ready to download in seconds — no account or installation required.
How long does it take to convert CAF to GSM?
Most CAF files convert in seconds. Larger files may take up to a few minutes depending on size and internet speed. You can track the progress bar in real time during conversion.
Is it safe to convert CAF files online?
Yes. All uploaded CAF files and converted GSM results are automatically deleted from our servers within 1 hour after conversion. We do not store, share, or access your files.
Can I convert CAF on iPhone or Android?
Yes, our converter works on all devices and operating systems — iPhone, iPad, Android, Windows, and macOS. Open the site in your mobile browser, upload the CAF file and convert to GSM without installing any app.
