Turn any FLAC song into an iPhone ringtone (M4R), automatically cut to 40 seconds. Free and private, right in your browser.
Drop audio or video files here
or paste them, or click to choose — several files at once
Choose filesMP3, WAV, FLAC, OGG, M4A, AAC, OPUS, AIFF, WMA, APE, AMR, MP4 and more · up to 300 MB per file
The converter (about 30 MB) is downloaded once on first use and then cached. Your files never leave your device.
Drop FLAC files onto the converter, paste them, or click to choose. You can add many at once.
M4R is already selected. If you like, adjust the quality, sample rate or channels before or after adding files.
Each file is converted in your browser in seconds. Save them one by one, or all at once as a ZIP.
Free Lossless Audio Codec
Lossless compression for music lovers
FLAC compresses audio without discarding anything: once decoded, it is bit-for-bit identical to the original, yet takes roughly half the space of WAV.
iPhone Ringtone
The iPhone ringtone format
M4R is an M4A (AAC) file with a different extension, which iPhones recognize as a ringtone or alert tone. iOS accepts ringtones of up to 40 seconds.
Audio is converted by ffmpeg running inside your browser. Your files never reach a server.
Queue up to 50 files and download them one by one or together as a ZIP.
Set the bitrate, bit depth, sample rate and channels — or simply keep the sensible defaults.
Add your FLAC files to the converter above. M4R is already selected as the output, so conversion starts right away. When a file is ready, click Download, or use Download all to get a ZIP.
The audio is encoded as AAC at 256 kbps, which sounds excellent through a phone speaker. Only the first 40 seconds are kept, unless you turn that option off.
The defaults (AAC at 256 kbps, first 40 seconds) are ideal. Then connect your iPhone to a computer and drag the file into Finder or iTunes, or share it to GarageBand on the phone and export it as a ringtone.
No. The FLAC to M4R conversion runs entirely in your browser using ffmpeg compiled to WebAssembly. Your files are never sent to a server, so even private recordings stay on your device.
Yes. Add up to 50 files; they are converted one after another, and you can download each M4R file separately or all of them together as a ZIP archive.