Tools / File Converter / GSM to WMA Converter

GSM to WMA Converter

Convert GSM files to WMA. Free, without uploading.

This tool converts GSM files to WMA. GSM phone audio.

WMA is Microsoft’s Windows Media audio format. WMA is lossy; you choose the quality from 96 to 320 kbps. 192–256 kbps is enough for music, 128 kbps for speech.

Conversion runs on your device; your file is never sent to a server. The components download once on first use, and later conversions start right away.

How to use

1. Choose the GSM file, drag it in, or paste its link.
2. Choose the audio quality; optionally enter a start and end time.
3. Press "Convert" and download the WMA file.

Frequently asked questions

Will audio quality drop when converting to WMA?

WMA is lossy, so there is a small loss you won’t hear at higher bitrates. If the source is already lossy, a higher bitrate won’t improve it.

Is there a file size limit?

No fixed limit; your device’s memory decides. Computers usually handle files up to 1–2 GB.

Is my file uploaded?

No. Your GSM file is converted to WMA inside your browser.