FLAC to M4R Converter
Convert FLAC files to M4R in seconds, right in your browser. Drop in one file or a whole folder, pick your quality settings and download - nothing is uploaded to a server.
Drop FLAC files here
MP3, WAV, FLAC, M4A, OGG, OPUS, AAC, AIFF, WMA, AMR, MP4, MOV & more · Processed on your device - nothing is uploaded
How to convert FLAC to M4R
- Click "Choose files" or drag your FLAC files onto the page.
- Make sure "M4R" is selected as the output format (256 kbps is a good default).
- Click Edit to select the best 30-40 seconds of the song, then Trim.
- Click Convert, then Download your M4R files.
Why convert FLAC to M4R?
M4R files are typically 5-10x smaller than FLAC, making them ideal for phones, sharing and streaming.
M4R is the only format iPhone accepts for custom ringtones. Trim your clip to 40 seconds or less.
M4R is best for custom iPhone ringtones and alert tones. iPhone (via Finder, iTunes or GarageBand), macOS.
Will I lose quality?
M4R is a lossy format, so some inaudible detail is removed to save space. At 256 kbps or higher most listeners cannot tell the difference from the original FLAC.
FLAC vs M4R
| FLAC | M4R | |
|---|---|---|
| Full name | Free Lossless Audio Codec | iPhone Ringtone (AAC) |
| Type | lossless | lossy |
| Best for | hi-fi music collections, archiving CDs and lossless streaming | custom iPhone ringtones and alert tones |
| Typical size | ~5-6 MB at 16-bit / 44.1 kHz per minute | ~1.9 MB at 256 kbps per minute |
| Compatibility | Supported by Android, iOS 11+, Windows 10+, macOS, most hi-fi players and browsers. | iPhone (via Finder, iTunes or GarageBand), macOS. |
| Developed by | Xiph.Org Foundation (2001) | Apple (2007) |
FLAC to M4R: questions
How do I convert FLAC to M4R?
Open this page, add your FLAC file, make sure M4R is selected as the output format and click Convert. Your M4R file is ready to download in seconds.
Will converting FLAC to M4R lose quality?
M4R is a lossy format, so some inaudible detail is removed to save space. At 256 kbps or higher most listeners cannot tell the difference from the original FLAC.
Is this FLAC to M4R converter free and safe?
Yes. It's free with no watermark or sign-up. Files are processed locally in your browser, so your audio is never uploaded or stored on our servers.
Can I convert many FLAC files to M4R at once?
Yes - add up to 5 files at a time on the free plan (unlimited with Pro), convert them all with one click and download them as a ZIP.
What is the difference between FLAC and M4R?
FLAC (Free Lossless Audio Codec) is a lossless format, lossless compression that shrinks audio to roughly 50-60% of WAV size without losing a single bit of quality. M4R (iPhone Ringtone (AAC)) is a compressed (lossy) format: the iPhone ringtone format - AAC audio with an .m4r extension, limited to 40 seconds.
Does it work on Mac, Windows, iPhone and Android?
Yes. The FLAC to M4R converter runs in any modern browser - Chrome, Safari, Edge or Firefox - on desktop and mobile. No software to install.