Convert M4R to FLAC

M4R to FLAC converter that runs entirely in your browser. 100% free, no signup, no upload — your files never leave your device. One-click batch conversion.

Conversions

Drop any file here or click to browse

All file types supported

About formats

M4R

M4R is an MPEG-4 audio file format used for iPhone ringtones. M4R is structurally similar to M4A (typically AAC-encoded) but is limited to 40 seconds of audio. M4R files are transferred to iOS devices via iTunes or Finder for use as custom ringtones.

Developer: Apple
Initial release: 2007
Compression: Lossy
Color depth: up to 24-bit
Transparency: No
Animation: No

Best for

Creating iPhone custom ringtones
iOS notification sounds
Transferring ringtones via iTunes
Short AAC audio clips for iOS
Personalizing iPhone alerts

Pros

+Native iPhone ringtone format
+Uses efficient AAC encoding
+Transferred via iTunes or Finder
+Simple 40-second clip format

Cons

−Limited to 40 seconds of audio
−iOS-specific with no other use
−May carry FairPlay DRM
−Not a general audio distribution format

FLAC

FLAC (Free Lossless Audio Codec) is an open-source lossless audio format that compresses audio without discarding any information, typically reducing file size by 50-60% compared to WAV while allowing perfect reconstruction of the original signal. FLAC is the preferred format for high-fidelity music archives and audiophile collections.

Developer: Xiph.Org Foundation
Initial release: 2001
Compression: Lossless
Color depth: up to 24-bit
Transparency: No
Animation: No

Best for

High-fidelity music archives
Audiophile music collections
Lossless audio preservation
Mastering and audio production
Backing up CD-quality music

Pros

+Lossless compression with perfect reconstruction
+50-60% smaller than WAV
+Open-source and royalty-free
+Supports up to 24-bit depth and multi-track

Cons

−Larger than lossy formats like MP3
−Not ideal for streaming on limited bandwidth
−Less universal device support than MP3
−Some portable players lack FLAC support

How to convert M4R to FLAC

1
Select M4R files from your computer, Google Drive, Dropbox, a URL, or by dragging them onto the page.
2
Choose flac — or any other format you need as a result (more than 200 formats supported).
3
Let the file convert, then download your flac file right away.

M4R vs FLAC

Property	M4R	FLAC
Compression	Lossy	Lossless
Color depth	up to 24-bit	up to 24-bit
Multi-track	No	Yes
DRM support	Yes	No
Open format	No	Yes

When to use M4R vs FLAC

M4R

Creating iPhone custom ringtones
iOS notification sounds
Transferring ringtones via iTunes
Short AAC audio clips for iOS
Personalizing iPhone alerts

FLAC

High-fidelity music archives
Audiophile music collections
Lossless audio preservation
Mastering and audio production
Backing up CD-quality music

Use cases for M4R → FLAC

Creating iPhone custom ringtones
iOS notification sounds
Transferring ringtones via iTunes
Short AAC audio clips for iOS
Personalizing iPhone alerts
High-fidelity music archives
Audiophile music collections
Lossless audio preservation
Mastering and audio production
Backing up CD-quality music

Frequently Asked Questions

Is converting M4R to FLAC free?

Yes. This M4R → FLAC converter runs entirely in your browser and is completely free — no account, no credits, no watermark.

Which devices and platforms can I use to convert M4R to FLAC?

Any modern device with a current web browser: Windows, macOS, Linux, Android, iPhone and iPad. There is nothing to install — the conversion happens locally.

Are my M4R files uploaded to a server?

No. Files never leave your device. The entire M4R → FLAC conversion runs locally in your browser, so your data stays private.

Can I convert multiple M4R files at once?

Yes — batch conversion is supported. Add as many M4R files as you like and convert them to FLAC in one pass, then download the results together.

What is the maximum file size?

There is no fixed server-side limit because the conversion happens in your browser. Practical limits depend on the available memory and CPU of your device.

Will converting M4R to FLAC lose quality?

No. FLAC is a lossless format (or used in a lossless mode here), so the original data from your M4R file is preserved bit-for-bit in the converted result.

Does FLAC support transparency?

No — FLAC has no alpha channel. Transparent areas of your M4R file will be filled with a solid background colour in the converted file.

Will the converted FLAC file be larger than the M4R?

Usually yes — converting from a lossy format to a lossless one means the FLAC file preserves full detail and therefore grows compared to the M4R original. Expect a roughly 30–60% size increase for typical content.

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FREE

100% Free

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SIGNUP

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PRIVACY

Private & Secure

Your files never leave your device. All processing is completed locally for maximum privacy.

BATCH

Batch Conversion

Convert multiple files simultaneously to save time. Fast and efficient multi-file queue.

LOCAL

Runs in Browser

Utilizes advanced client-side WebAssembly technology to process files directly inside your tab.

FORMATS

200+ Formats

Supports a wide variety of formats including images, documents, audio, video, and more.

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