Convert AAC to FLAC
Free and instant — your AAC files are processed securely on our servers and deleted right after conversion. Nothing is stored.
How to convert AAC to FLAC
- Step 01
Add your AAC files
Drop them into the box above or click to browse. You can add several files at once.
- Step 02
Conversion starts instantly
Your file is sent to our servers, converted and deleted right away — no sign-up, no queue, no waiting.
- Step 03
Download your FLAC files
Save each file individually or grab them all at once. Done.
Why convert AAC to FLAC?
Need your AAC in FLAC? Converting wraps the existing audio into FLAC — it won't restore detail AAC's compression already discarded, but the file will work anywhere FLAC is expected.
AAC vs FLAC at a glance
AAC is the successor to MP3 — better quality at the same bit rate, used by Apple Music, YouTube and most streaming platforms. FLAC is lossless audio with compression — identical quality to WAV but 40–60% smaller, the audiophile choice for music archival.
| Property | AAC | FLAC |
|---|---|---|
| Extension | .aac, .m4a | .flac |
| Full name | Advanced Audio Coding | Free Lossless Audio Codec |
| First released | 1997 | 2001 |
| Developed by | ISO/IEC JTC 1 | Xiph.Org |
| Compression | Lossy | Lossless |
| Transparency | No | No |
| Animation | No | No |
| Best for | music on Apple devices, streaming platforms and YouTube | audiophile music listening and archival of high-quality audio |
AAC to FLAC — frequently asked questions
Is this AAC to FLAC converter really free?
Yes — completely free, with no sign-up, no watermarks and no daily limits.
Will converting AAC to FLAC lose quality?
No. FLAC is a lossless format, so the converted file keeps every pixel exactly as decoded from your AAC.
Is the conversion private?
Audio conversion runs on our servers with ffmpeg — your file is deleted immediately and never stored.
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