AMR to ALAC Converter

Convert AMR files to ALAC format online for free. No installation or registration required.

Quick Answer: How to Convert AMR to ALAC

AMR is the Adaptive Multi-Rate codec built for mobile phone voice recording, while ALAC is Apple Lossless — FLAC's counterpart inside the MP4/M4A container. Converting AMR to ALAC wraps or re-encodes your audio into the ALAC structure, but be aware: quality lost when the AMR was created stays lost — a ALAC made from a lossy source is a perfect copy of an imperfect original. Run it free at practicalwebtools.com/convert/audio/amr-to-alac: drop in your AMR, adjust settings if you like, and download the ALAC — no signup, no upload, everything stays on your device.

AMR vs ALAC: Which One and Why

AMR is the Adaptive Multi-Rate codec built for mobile phone voice recording, standardized by 3GPP in 1999 for GSM and 3G voice calls. ALAC is Apple Lossless — FLAC's counterpart inside the MP4/M4A container, released by Apple in 2004; open-sourced under Apache 2.0 in 2011. People reach for AMR mainly for phone voice memos, call recordings, answering machines, while ALAC is the usual choice for Apple Music lossless streaming, ripping CDs for the Apple ecosystem, iPhone/local-library audiophile setups. AMR's headline strength: tiny files — a minute of voice is under 1 MB. ALAC's: perfect fidelity inside the iTunes/Apple Music pipeline. On the other side of the ledger, AMR limitation: unusable for music — the codec discards everything above ~3.4 kHz (phone-line bandwidth) — and ALAC limitation: no advantage over FLAC outside the Apple world.

How to Convert AMR to ALAC Online

  1. 1

    Add your AMR file: Drag and drop it into the converter, or click to browse. AMR files up to the size limit are accepted, and nothing is uploaded — processing runs locally in your browser.

  2. 2

    Set ALAC options: The converter re-encodes into ALAC, which is lossless — roughly 40–60% of original size, comparable to FLAC. Set quality to maximum since you're going lossless — no reason to trim bits you already have.

  3. 3

    Download the ALAC: Conversion runs on your device. When it completes, download the ALAC file — repeat for as many files as you need, free and unlimited.

Key Facts

  • AMR: standardized by 3GPP in 1999 for GSM and 3G voice calls, lossy, speech-only — from 4.75 to 12.2 kbps.
  • ALAC: released by Apple in 2004; open-sourced under Apache 2.0 in 2011, lossless — roughly 40–60% of original size, comparable to FLAC.
  • Converting AMR → ALAC cannot restore what the AMR encoding already discarded — the ALAC is a faithful copy of the AMR, not of the original recording.
  • AMR strength: tiny files — a minute of voice is under 1 MB.
  • ALAC strength: perfect fidelity inside the iTunes/Apple Music pipeline.
  • AMR limitation to know: unusable for music — the codec discards everything above ~3.4 kHz (phone-line bandwidth).
  • ALAC limitation to know: no advantage over FLAC outside the Apple world.
  • Fun fact: Apple Music streams ALAC up to 24-bit/192 kHz — but AirPods re-compress it to AAC over Bluetooth, so lossless is only audible on wired or Wi-Fi playback

Format Background

AMR

AMR — standardized by 3GPP in 1999 for GSM and 3G voice calls. AMR locks to one of 8 bitrates and can switch mid-file — old phones used this to maintain calls as signal degraded

ALAC

ALAC — released by Apple in 2004; open-sourced under Apache 2.0 in 2011. Apple Music streams ALAC up to 24-bit/192 kHz — but AirPods re-compress it to AAC over Bluetooth, so lossless is only audible on wired or Wi-Fi playback

Frequently Asked Questions

Will converting AMR to ALAC lose quality?

The ALAC output preserves everything present in your AMR file — but AMR is lossy, speech-only — from 4.75 to 12.2 kbps, so information discarded when that file was made is gone for good. You get a bit-perfect copy of what you have, not a restoration of the original recording.

Are my files uploaded anywhere during AMR → ALAC conversion?

No. This converter runs on WebAssembly inside your browser — your AMR file is read from disk, processed by your device's CPU, and the ALAC is written back locally. There is no server upload at any point, which also means no size-based throttling or waiting in queue.

Does converting AMR to ALAC restore lost quality?

No — and this trips up a lot of people. AMR is lossy, speech-only — from 4.75 to 12.2 kbps: the data it discarded at creation time cannot be reconstructed by any converter. A ALAC from a AMR source sounds exactly as good as the AMR, no better. The reasons to convert anyway are compatibility, editing headroom, and future-proofing — not restoration.

Is ALAC still a current format in 2026?

IOS, macOS, iTunes, Apple TV, HomePod; most modern browsers via MSE. Apple Music streams ALAC up to 24-bit/192 kHz — but AirPods re-compress it to AAC over Bluetooth, so lossless is only audible on wired or Wi-Fi playback

Do I need to install anything to convert AMR to ALAC?

No installation. The converter is a web page — open it in any modern browser on Windows, macOS, Linux, iOS, or Android. AMR decoding and ALAC encoding both run via WebAssembly at native-adjacent speed.

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Read More

Guides and explainers on the Practical Web Tools blog cover audio and video formats in depth — or browse every audio converters pair from the hub.