Audio Converter

Add Your Opus Recordings to iPhone and Apple Music Without Re-Compressing

Upload your Opus file and get an ALAC that imports natively into iTunes and Apple Music, plays on every iPhone, iPad, Mac, and HomePod, and avoids the quality penalty of converting Opus to AAC twice. The best path from a Opus source into Apple's lossless ecosystem.

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Add Your Opus Recordings to iPhone and Apple Music Without Re-Compressing

Free Tool

Audio Format Converter

Upload any audio file, choose an output format, and download the converted result. Supports MP3, WAV, FLAC, AAC, OGG, ALAC, WMA, Opus and M4A.

Drop your audio file here

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Person at a MacBook organizing recordings in Apple Music with an iPhone nearby

Archive Discord Recordings in Apple Music at Maximum Quality

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Archive Discord Recordings in Apple Music at Maximum Quality

Discord exports voice recordings as Opus. Apple Music does not accept Opus files. Converting to AAC would apply a second lossy compression pass on top of the already-lossy Opus. Converting to ALAC instead stores the decoded audio losslessly — the result imports into Apple Music natively with no further quality degradation and no codec re-encoding.

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Podcaster with a MacBook and iPhone at a home studio desk with a microphone

Add Streaming and Podcast Archives to iPhone Without Double Compression

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Add Streaming and Podcast Archives to iPhone Without Double Compression

Self-hosted podcast archives, radio stream recordings, and exported content from Navidrome or Jellyfin often arrive as Opus files. Converting to ALAC before importing into Apple Music avoids the AAC re-encoding step that introduces a second round of lossy compression. The ALAC holds the Opus audio as-decoded — the cleanest possible Apple-compatible container for the source.

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HomePod on a wooden shelf in a cozy living room with warm ambient lighting

Stream Opus-Sourced Audio at Full Quality to HomePod

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Stream Opus-Sourced Audio at Full Quality to HomePod

HomePod and HomePod mini decode ALAC natively over AirPlay 2 from Apple Music on Mac. Adding Opus recordings to Apple Music as ALAC lets HomePod stream them at the best available quality from the source — without an intermediate lossy AAC transcoding step that would degrade the audio further before it reaches the speaker.

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How It Works

Three steps to an Apple-ready ALAC with no double compression

Upload your Opus file

Drop your .opus file onto the tool or click to browse. Files from Discord exports, WebRTC recorders, streaming archives, and VoIP tools are all accepted.

Convert to ALAC

Click "Convert". FFmpeg decodes the Opus stream to PCM and encodes it losslessly as ALAC inside an M4A container. No further quality is lost beyond what the original Opus encoding applied.

Download your ALAC file

Download your .m4a file and drag it into iTunes or Apple Music, AirDrop it to an iPhone, or open it in GarageBand or Logic Pro.

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Deep Dive

Opus vs ALAC: Streaming Codec vs Apple's Lossless Container

Opus is engineered for efficient real-time delivery. ALAC is Apple's lossless storage format. Converting between them is specifically about moving Opus audio into Apple's ecosystem at the highest possible quality — avoiding the double-lossy penalty of Opus to AAC.

Discord users, podcasters, and audiophiles adding Opus recordings to Apple Music as ALAC

Opus: Efficient for Streaming, Not Recognized by Apple

Opus (IETF RFC 6716) is a lossy codec achieving exceptional quality at low bitrates. It is the standard for Discord, WebRTC, and self-hosted streaming. Apple's entire audio stack — iTunes, Apple Music, the iOS Music app, HomePod, and AVFoundation — does not recognize Opus files. They cannot be imported into iTunes or Apple Music and will not play in the iOS Music app.

iTunes/Apple MusicNot importable — Opus is not in Apple's supported format list

iPhone Music appDoes not play Opus natively in any iOS version

AVFoundationDoes not decode Opus natively

Opus is excellent for streaming and voice communication. For Apple ecosystem integration, a conversion is required.

ALAC: The Lossless Path into Apple's Ecosystem

ALAC (Apple Lossless Audio Codec) applies reversible compression — decoding produces bit-for-bit identical PCM to the source. Converting Opus to ALAC, rather than to AAC, avoids introducing a second round of lossy compression on top of the already-lossy Opus encoding. ALAC is hardware-decoded on every Apple device and imports natively into iTunes and Apple Music.

TypeLossless compression, open-source, stored in M4A container

vs. converting to AACALAC adds no further lossy compression; AAC re-encodes lossy on top of Opus

Apple device supportHardware-decoded on every iPhone, iPad, Mac, HomePod, Apple TV

ALAC is the highest-quality Apple-compatible container for any Opus source — it avoids the double-compression that AAC would introduce.

Why ALAC Over AAC for Opus Sources

When converting a lossy Opus file for Apple Music, the choice of output format matters. Converting Opus to AAC applies a second round of perceptual encoding on top of the first — two lossy passes compound the quality loss. Converting Opus to ALAC instead losslessly stores the decoded Opus audio, with no second compression pass. The quality ceiling remains at the original Opus encoding, not lower.

Opus -> AACTwo lossy passes: quality degrades twice

Opus -> ALACOne lossy pass (original Opus); no further degradation

The quality difference between ALAC and high-bitrate AAC from an Opus source may be minimal in practice, but ALAC is objectively the cleaner choice.

When ALAC Is the Right Destination from Opus

ALAC is the right choice when the Opus audio needs to live in Apple Music, sync to iPhone, stream to HomePod, or be imported into GarageBand or Logic Pro — and you want to avoid adding a second lossy encoding step. If the goal is simply playback on any device, converting to MP3 offers broader compatibility. If the goal is long-term archiving outside Apple's ecosystem, FLAC is more universal.

Use ALAC forApple Music, iTunes, iPhone sync, HomePod, GarageBand, Logic Pro

Use MP3 forCar stereos, legacy devices, podcast platforms, cross-platform sharing

Use FLAC forCross-platform lossless archiving outside Apple's ecosystem

Our converter uses FFmpeg to decode Opus to PCM and encode losslessly as ALAC in an M4A container, with no additional lossy compression step.

Benefits

Why Convert Opus to ALAC

🔒

No Double Compression

ALAC stores the decoded Opus audio losslessly, avoiding the second lossy pass that converting to AAC would introduce.

🍎

Native in Apple Music and iTunes

ALAC imports directly into iTunes and Apple Music with a lossless badge and syncs to every connected Apple device.

📱

Plays on Every Apple Device

Every iPhone, iPad, Mac, HomePod, and Apple TV hardware-decodes ALAC natively — no third-party app needed.

⚡

Fast Conversion

Most Opus files convert to ALAC in under 30 seconds on dedicated FFmpeg servers.

Who Uses It

Who Converts Opus to ALAC

Discord users archiving voice recordings in Apple Music, podcasters importing WebRTC recordings into GarageBand, self-hosted streaming listeners adding exports to iPhone, and anyone who wants Opus audio in Apple's ecosystem without double compression.

Discord users, podcasters, and streamers converting Opus recordings to ALAC for Apple Music

Discord Users Archiving Voice Channel Recordings

Discord exports voice recordings as Opus. Users who want to archive a gaming session, podcast recording, or community event in Apple Music can convert to ALAC instead of AAC to avoid introducing a second lossy compression step on top of the Opus encoding.

Quality approachOpus -> ALAC: one lossy pass total (vs Opus -> AAC: two lossy passes)

Podcasters Importing WebRTC Recordings into GarageBand

Podcast producers who record via Riverside, Zencastr, or any WebRTC tool receive Opus guest tracks. GarageBand does not import Opus. Converting to ALAC provides a GarageBand-importable file with no second lossy encoding, giving the editor the cleanest possible working copy for noise reduction and mixing.

WorkflowOpus recording -> ALAC -> drag into GarageBand -> edit -> export

Self-Hosted Streaming Listeners Adding Content to iPhone

Listeners who archive content from Navidrome, Jellyfin, or self-hosted radio streams in Opus and want the files on their iPhone can convert to ALAC for iTunes import. This keeps the Apple Music library in the highest-quality Apple-compatible format without re-encoding the Opus source through a second lossy codec.

VoIP Call Archivists

Business professionals, interviewers, and journalists who record calls via VoIP systems or WebRTC receive Opus files. Converting to ALAC before adding to an Apple Music library or Logic Pro session preserves the audio at the best available quality from the source without additional codec degradation.

Developers Testing Apple Audio with Streaming-Derived Content

iOS and macOS developers who receive audio from a streaming or VoIP API as Opus and need to test it through AVFoundation, GarageBand, or Logic Pro can convert to ALAC for a clean Apple-ecosystem import. ALAC avoids the AAC re-encoding step and gives the developer a stable test asset in Apple's native lossless format.

Musicians Incorporating Voice Captures from Communication Tools

Songwriters who record spontaneous vocal ideas or collaborative sessions over Discord or FaceTime Audio often receive Opus captures. Converting to ALAC before importing into GarageBand or Logic Pro gives the project session the cleanest possible audio without a second round of lossy compression degrading the vocal performance.

Converts using FFmpeg on dedicated servers.

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Related Tools

Frequently Asked Questions

Why convert Opus to ALAC instead of AAC for Apple Music?

Converting Opus to AAC applies a second round of lossy compression on top of the first — both Opus and AAC are lossy, so chaining them degrades the audio twice. Converting Opus to ALAC instead losslessly stores the decoded Opus audio with no additional compression pass. The quality ceiling stays at the original Opus encoding, not lower. For the cleanest Apple-compatible result from an Opus source, ALAC is the better choice.

Will the ALAC file import into Apple Music with a lossless badge?

Yes. Apple Music displays a lossless badge for all ALAC tracks regardless of the quality of the original source. The badge indicates the container is lossless. Your converted ALAC will display the lossless indicator and sync to any connected Apple device.

Does converting Opus to ALAC restore audio quality?

No. ALAC is lossless compression — it stores the PCM data decoded from the Opus file exactly as-is. Quality lost during the original Opus encoding cannot be recovered. The benefit of ALAC over AAC as a conversion target is that it introduces no second quality penalty, not that it recovers any lost quality.

Can I import the ALAC file into GarageBand on iPhone?

Yes. GarageBand on both Mac and iPhone imports ALAC (.m4a) files. On iPhone, use the Files app to open the .m4a file and share it into GarageBand as an audio region. On Mac, drag the file into the GarageBand project window.

Does AirPlay 2 stream ALAC at full quality to HomePod?

Yes. AirPlay 2 supports lossless audio streaming, and HomePod and HomePod mini decode ALAC natively. When you play an ALAC track from Apple Music on Mac, it streams to HomePod at full lossless quality without any intermediate transcoding.

Is there a file size limit?

The upload limit is 100 MB per file. Most Opus audio files are well within this limit.

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Ready to Convert Your Opus to ALAC?

Upload your file above and get an Apple-ready ALAC file with no double compression in seconds.