M4R to SNDR Converter
Convert your m4r files to sndr online & free
MPEG 4 Ringtones Audio
MS-DOS early ’90s .SND(RT) files
How to convert M4R to SNDR
Select files from Computer, Google Drive, Dropbox, URL or by dragging it on the page.
Choose "to sndr"
Choose sndr or any other format you need as a result (more than 200 formats supported)
Download your sndr
Let the file convert and you can download your sndr file right afterwards