FLAC to M4A Converter
Get your FLAC music into Apple Music and iTunes as compact M4A (AAC) audio — free, fast, no signup, no watermark.
up to 50 files at once
auto-delete in 24h · no signup · no watermark
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How to convert FLAC to M4A online
- Click "Browse Files" or drag your FLAC file into the converter above (up to 200 MB free, 500 MB with an account).
- The target format is preset to M4A — adjust quality options in the picker if you need to.
- Hit "Convert". Your file uploads over an encrypted connection and converts automatically in the cloud — nothing to install.
- Click the green "Download" button to save your M4A file. The original is deleted immediately and the result auto-deletes after 24 hours.
That is the entire flow — no email address, no software install, no watermark on the output. The page you are reading handles FLAC to M4A from start to finish.
What's the difference between FLAC and M4A?
FLAC (Free Lossless Audio Codec) and M4A (MPEG-4 Audio) solve different problems: FLAC is a lossless compression format built for music archiving, hi-fi audio collections, while M4A is a lossy compression format whose strength is iPhone voice memos, Apple Music files. In practice you will meet FLAC when dealing with music archiving, hi-fi audio collections, and reach for M4A when you need iPhone voice memos, Apple Music files — the table below compares them point by point.
| FLAC | M4A | |
|---|---|---|
| Full name | Free Lossless Audio Codec | MPEG-4 Audio |
| Developed by | Xiph.Org Foundation | Apple / MPEG |
| Released | 2001 | 2001 |
| Compression | Lossless compression | Lossy compression |
| Typical use | music archiving, hi-fi audio collections | iPhone voice memos, Apple Music files |
| File extension | .flac | .m4a |
| MIME type | audio/flac | audio/mp4 |
Why convert FLAC to M4A?
FLAC (Free Lossless Audio Codec) is an open-source lossless audio format released by Xiph.Org in 2001. It compresses audio to roughly half of WAV size with bit-perfect reconstruction — every sample identical to the source — making it the standard for music archiving and hi-fi listening. Here is when M4A is the better choice:
- →M4A/AAC sounds better than MP3 at the same file size — the Apple ecosystem default.
- →Native format for iPhone and iTunes libraries.
- →It runs in the cloud — 10 free conversions a day with files up to 200 MB (20/day and 500 MB with a free account) — so even a phone or an old laptop converts at full speed.
Before you convert: three quick tips
- ●Decide the use first: 320 kbps for critical listening, 128 kbps when size matters most, and the 192 kbps default for everything else.
- ●Core audio metadata (title, artist) carries over to M4A where the format supports it; extras like embedded cover art vary by format.
- ●Keep your original FLAC — conversion never modifies it, and if you later need a different target format, starting from the original always gives the best quality.
M4A conversion settings explained
Bitrate controls the quality-versus-size tradeoff of your M4A file. Filevo defaults to 192 kbps — the sweet spot for music: about 1.4 MB per minute of audio, indistinguishable from the source for the vast majority of listeners.
How to choose: 128 kbps suits voice, podcasts, and audiobooks (≈0.96 MB per minute — fully transparent for speech); 192 kbps is the everyday music setting (≈1.4 MB per minute); 320 kbps is for archiving and critical listening (≈2.4 MB per minute, the ceiling of what the format can deliver).
Rule of thumb: when unsure, keep the default. Pick 320 kbps for a music collection you plan to keep, or 128 kbps to halve the size of a voice note before sending it.
How the conversion works
Filevo's FLAC to M4A conversion is powered by FFmpeg, the open-source media framework behind much of the world's video infrastructure. We run it with compatibility-first settings tuned for everyday playback, and stream progress back to your browser in real time. Because everything runs in the cloud, your device's CPU stays idle — the browser only uploads and downloads.
Why convert FLAC to M4A?
FLAC is a superb lossless format, but Apple doesn’t support it — iTunes, Apple Music and iPhones won’t import or play FLAC. So if your music library is in FLAC and you live on Apple devices, you need a format Apple understands. Converting FLAC to M4A produces compact AAC audio that drops straight into Apple Music and iTunes, syncs to your iPhone, and tags cleanly — finally letting a FLAC collection live in the Apple world.
Our M4A is AAC, not ALAC — the honest detail
This matters, so here it is plainly: "M4A" is a container that can hold either ALAC (Apple Lossless) or AAC (lossy). This converter outputs AAC. That means converting your lossless FLAC to M4A here is a lossy step — it compresses the audio, discarding detail to shrink the file. At 256–320 kbps the result is excellent and hard to distinguish by ear, perfect for everyday listening on Apple devices. But if you want to keep your library bit-perfect lossless on Apple gear, that requires Apple Lossless (ALAC), which this tool doesn’t produce — in that case, keep your FLAC files as the master.
Get your FLAC library into Apple Music
For most people the goal is simply to listen: you have FLAC albums and you want them on your iPhone and in Apple Music without fighting unsupported-format errors. M4A at 256 kbps or higher does exactly that — compact, great-sounding files that behave like any other Apple Music track. It’s the practical way to enjoy a FLAC collection on Apple devices day to day, while your original FLAC files stay safe as the lossless source.
Convert FLAC to M4A on any device
On Windows or Mac: drag the FLAC straight from Explorer or Finder into the converter above. On iPhone or Android: open this page in your browser, tap Browse Files and pick the FLAC — no app required. Everything runs in the cloud, and the M4A downloads ready to add to Apple Music or sync to your iPhone.
What is FLAC?
FLAC (Free Lossless Audio Codec) is an open-source lossless audio format released by Xiph.Org in 2001. It compresses audio to roughly half of WAV size with bit-perfect reconstruction — every sample identical to the source — making it the standard for music archiving and hi-fi listening.
| Full name | Free Lossless Audio Codec |
| Developer | Xiph.Org Foundation |
| Released | 2001 |
| MIME | audio/flac |
What is M4A?
M4A is an audio container introduced with Apple iTunes in 2001, normally holding AAC-encoded audio. It delivers better quality than MP3 at the same bitrate and is the default recording and music format across iPhone, iPad, and Mac.
| Full name | MPEG-4 Audio |
| Developer | Apple / MPEG |
| Released | 2001 |
| MIME | audio/mp4 |
Filevo vs other FLAC to M4A converters
An honest comparison — CloudConvert and Convertio are capable tools; here is where Filevo differs:
| Filevo | CloudConvert | Convertio | |
|---|---|---|---|
| Free tier | 10/day | 10/day | 10 credits/day |
| No signup needed | Yes | Yes | Yes |
| Watermarks | None | None | None |
| Ads on free tier | No | No | Yes |
| Pricing model | 1 file = 1 credit, shown upfront | Per conversion minute | Credit packs |
Privacy & file security
Filevo deletes your uploaded FLAC file immediately after conversion and removes the converted M4A within 24 hours. Everything travels over TLS encryption, processing is fully automated with zero human access, and your files are never used for AI training. See our Privacy Policy for details. Privacy Policy →
FLAC to M4A converter FAQ
How do I convert FLAC to M4A for free?
Drop your FLAC file into the converter at the top of this page, confirm M4A as the target, click Convert, and download the result. It is genuinely free: 10 free conversions a day with files up to 200 MB (20/day and 500 MB with a free account), no watermarks, no software to install, no account required.
Is it safe to convert FLAC files online?
Yes. Transfers are TLS-encrypted end to end, and conversion is fully automated — no human ever sees your files. Your uploaded FLAC is deleted the moment conversion finishes, and the converted M4A auto-deletes after 24 hours (you can delete it sooner). We never use your files for AI training or share them with anyone.
Will I lose quality converting FLAC to M4A?
Your FLAC source is lossless, so the output quality depends entirely on the quality setting you pick. The defaults produce results visually or audibly indistinguishable from the original at a fraction of the size.
How long does FLAC to M4A conversion take?
Usually seconds. The conversion itself takes from under a second to a few seconds for images and audio — most of the wait is the upload, which depends on your connection speed. Since processing happens in the cloud, your device stays fast, and you can run several conversions in parallel.
Can I convert FLAC to M4A on iPhone or Android?
Yes. Filevo runs entirely in the browser, so it works the same on iPhone, Android, tablets, and computers — no app to install. On mobile, tap Browse Files to pick from your photos or files.
What's the maximum file size?
Anonymous conversions accept files up to 200 MB; a free account raises that to 500 MB. Paid plans go from 1 GB up to 10 GB per file, with higher daily limits and priority queues.
Can I convert multiple files at once?
Yes. Drop up to 50 files at once — they roll through the queue automatically. Pick a target format per file or set one per category, then download results individually or grab everything as a single ZIP.
What will the converted file be named?
Your original name is kept and only the extension changes — holiday.flac becomes holiday.m4a, so files stay easy to find.
Will converting FLAC to M4A keep it lossless?
Not with this tool — it outputs AAC, which is lossy, so converting your lossless FLAC compresses it and discards some detail. At 256–320 kbps it’s hard to tell apart by ear. True lossless on Apple devices needs Apple Lossless (ALAC), which this converter doesn’t produce, so keep your FLAC files as the master if you need bit-perfect audio.
Why won’t Apple Music play my FLAC files?
Apple has never supported FLAC in iTunes, Apple Music or iOS — it uses its own formats (AAC and ALAC) instead. That’s why a FLAC won’t import or play. Converting to M4A (AAC) gives you a file Apple’s apps accept natively.
What bitrate should I use for music?
For converting from lossless FLAC, use 256 kbps as a strong default or 320 kbps for maximum AAC quality — both sound excellent and very close to the source for everyday listening. Lower bitrates save space but give up more of the quality FLAC preserved.
Whether you need iPhone voice memos, Apple Music files or simply a file that works where FLAC will not open, the converter above turns FLAC into M4A in seconds — free, private, and with nothing to install. Bookmark this page for the next time a FLAC file refuses to cooperate.
Last updated: 2026-07-27