: Most modern phones (Android/iOS) prefer MP3 or AAC. If you have a WAV file, you may need to use a mobile "Ringtone Maker" app or a simple online converter to make it compatible with your phone's clock app. A Quick Tip on Licensing Most "free" sites use Creative Commons licenses. CC0 : Public domain (use it however you want).
: The classic "Beep-Beep-Beep" that is hard to ignore. Free Alarm Sounds Wav Files
: You must give credit to the creator if you use it in a public project (like a YouTube video or app). To help me find the best sounds for you, : Most modern phones (Android/iOS) prefer MP3 or AAC
: Go to Settings > System > Sound > More sound settings . Under the Sounds tab, you can replace specific system alerts with your downloaded WAV file. CC0 : Public domain (use it however you want)
: Features a great mix of "gentle" wake-up sounds (like birds or soft bells) and "emergency" style alerts.
: A straightforward site that offers a dedicated "Alarm" tag. Most files are available in both WAV and MP3 formats and are licensed under Creative Commons.