M4R to TXZ Converter
Processing entirely on your device — large files may take a moment.
M4R is Apple’s ringtone format — technically an AAC file capped at 40 seconds that iTunes and iPhones recognise as a ringtone. Convert TXZ exactly like TAR.XZ.
Because the whole conversion happens on your device, it is instant, unlimited and genuinely private — no accounts, no watermarks, no files on anyone's server. Multiple files are converted in one go.
How M4R compares to TXZ
| M4R | TXZ | |
|---|---|---|
| Compression | Lossy AAC | XZ / LZMA2 |
| Quality | Same as M4A | Lossless, deterministic |
| Best for | iPhone ringtones | Source releases, Linux packages |
How to convert M4R to TXZ
- 1
Select your files
Select your M4R file — it never leaves your device.
- 2
Convert instantly
The engine packs the file, byte for byte, into a TXZ container — no re-encoding, no quality change.
- 3
Download results
Download the finished TXZ archive.
About the M4R format
M4R is simply iPhone ringtone packaging: an AAC audio file (same as M4A) capped at 40 seconds, named .m4r so iOS treats it as a ringtone instead of a song. GarageBand and Finder sync are the supported paths to install one; the audio itself is ordinary AAC.
Practical workflow: pick the 30–40 second chorus you want, convert to M4R, sync it to the phone, and set it in Sounds & Haptics. Nothing about the audio changes — the extension and the length limit are the entire format.
+Strengths
- ✓The native iPhone ringtone format
- ✓Simple — it is AAC with a new name
!Limitations
- −Hard 40-second length cap
- −Installation requires sync or GarageBand
About the TXZ format
TAR.XZ pairs the tar container with XZ (LZMA2) compression — the highest-ratio member of the tar family and the de-facto release format of modern Linux distributions. The same source tree that lands 5% smaller than TAR.BZ2 and 20% smaller than TAR.GZ is why kernel.org and GNU mirrors standardised on it.
The trade is CPU time: XZ compresses slow (dictionary sizes up to 64 MB) but decompresses fast, which makes it ideal for one-time releases that get downloaded millions of times. When you need speed instead, TAR.GZ or TAR.ZSTD are the neighbouring picks.
+Strengths
- ✓Best compression ratio of the tar family
- ✓Standard release artifact of Linux distros
- ✓Fast decompression despite slow compression
!Limitations
- −Compression is CPU-heavy and single-threaded by default
- −Larger toolchain footprint than gzip on tiny systems
Why convert M4R to TXZ?
There is a concrete reason this conversion exists: Hard 40-second length cap TXZ sidesteps that — Best compression ratio of the tar family If that is your situation, the tool above settles it in seconds, entirely on your device.
Frequently asked questions
Is this M4R to TXZ converter really free?
Yes — completely free, with no sign-up, no watermark and no daily conversion limits. The site is supported by advertising.
Are my files uploaded to a server?
No. The conversion runs entirely inside your browser using WebAssembly, so your files never leave your device — that is what makes it instant and private.
Does it work on Windows, Mac, iPhone and Android?
Yes. Anything with a modern browser works: Windows, macOS, Linux, Android and iOS. No software installation is required.
Is there a file size limit for M4R to TXZ?
The only limit is your device's memory, since nothing is uploaded. Files up to a few hundred megabytes work fine on a modern desktop browser; very large files simply take a little longer.
Will converting M4R to TXZ reduce audio quality?
If TXZ is lossless, the output contains everything the M4R file contains — no further loss is added. If TXZ is lossy, one recompression pass is unavoidable; the quality slider controls how much. Loss that already happened in the source file can never be undone by converting.
Are tags like title and artist preserved?
Tag handling varies between target formats and this conversion focuses on the audio itself. For archival copies where tags matter, keep the original file; the converted copy is for playback and sharing.