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FLAC to M4A - Online Audio Converter
Convert FLAC to M4A online. Private, client-side - no uploadrequired. Batch conversion, quality presets, codec control.
Convert FLAC to M4A
Drop FLAC audio here or click to select
FLAC
M4A (AAC)
About FLAC to M4A
Convert FLAC to M4A. FLAC halves WAV sizes bit-for-bit with open hardware support. M4A is the MPEG-4 audio container usually holding AAC or ALAC. Check whether the track is AAC or ALAC before picking settings..
Why convert FLAC to M4A?
- Smaller files with M4A lossy compression.
- Keep quality where supported.
- Private, no upload - runs in your browser.
FLAC vs M4A
| Codec | FLAC | AAC |
|---|---|---|
| Compression | lossless | lossy |
| Sample behavior | Full quality kept | Quality set by bitrate |
| Typical use | FLAC halves WAV sizes bit-for-bit with open hardware support. | M4A is the MPEG-4 audio container usually holding AAC or ALAC. |
When not to convert FLAC to M4A
- Skip M4A for archival masters: lossy compression discards detail, so keep the FLAC original.
- Keep a master copy: repeated exports stack small losses, so archive FLAC before batch M4A shares.
Limits
Starting point: FLAC - Bit-identical compression near half the WAV size. Apple players prefer ALAC; convert for iPhone libraries. Check whether the track is AAC or ALAC before picking settings. Encode M4A (AAC) from FLAC at 256k for music or 128k for speech, starting from the master.
How conversion works
Conversion runs entirely in your browser with FFmpeg WASM. Files never leave your device.
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FAQ
How do I convert FLAC to M4A?
Drop your FLAC file onto this page, choose quality and codec settings, then click Convert. The result downloads as M4A instantly. All processing runs in your browser.
What codec is used for M4A?
The default codec for M4A is AAC. You can change audio parameters in Advanced mode.
How do you store my files?
We do not store any processed audio. All conversion happens entirely in your browser using FFmpeg WASM.