STM to EFW Converter

Convert STM to EFW online, for free.

Choose Files

Max file size 50MB.
STM

STM format

EFW

EFW format

How to Convert STM to EFW

1

Choose Files

Click the “Choose Files” button to select your STM files.

2

Convert to EFW

Click the “Convert to EFW” button to start the conversion.

3

Download EFW

When the status change to “Done” click the “Download EFW” button