Convert GSM to CAF — lossless, so expect larger files
Free and unlimited, and nothing is uploaded: it all runs in your own browser. Open Audio Converter
What changes when you convert GSM to CAF
- GSM audio is lossy and CAF audio is lossless: converting cannot restore detail the source already discarded, and the CAF audio file will usually be larger than the original.
How to convert GSM to CAF
- Add your GSM file — drag it onto the page or choose it. It stays on your device.
- Pick CAF as the output format.
- Press convert and download the result — individually or as one ZIP.
Questions
How do I convert GSM to CAF for free?
Add your GSM file on this site, choose CAF, and press convert. The whole conversion runs in your own browser — nothing is uploaded — and the CAF file downloads straight from your device.
Will converting GSM to CAF lose quality?
GSM audio is lossy and CAF audio is lossless: converting cannot restore detail the source already discarded, and the CAF audio file will usually be larger than the original.
Does CAF keep everything GSM supports?
Yes within the format’s own limits — pixels, timing and structure survive the conversion.