Steg 1: Ladda upp din M4A filer med knappen ovan eller genom att dra och släppa.
Steg 2: Klicka på knappen "Konvertera" för att starta konverteringen.
Steg 3: Ladda ner din konverterade fil FLAC filer
M4A till FLAC Vanliga frågor om konvertering
How do I convert M4A audio to FLAC without losing quality?
+
Upload the M4A file and our converter picks a FLAC codec / bitrate combination matched to the source. Lossless target (FLAC = WAV / FLAC / ALAC) preserves every sample; lossy target (FLAC = MP3 / AAC / OGG / Opus) defaults to 192 kbps which is transparent for most ears.
What bitrate does the FLAC file use?
+
Default 192 kbps for lossy FLAC; pass-through (no bitrate dial) for lossless FLAC. Override to 320 kbps for audiophile output, or 96 kbps for voice / podcast where smaller files matter more than fidelity at the extremes.
Will going from M4A to FLAC reduce my audio quality?
+
If M4A is lossy and FLAC is lossless (e.g. MP3 -> WAV), the FLAC file is no better than the M4A — you cannot recover information that was already thrown away. If M4A is lossless and FLAC is lossy, the FLAC codec recompresses; at 192 kbps this is transparent for most content.
Does the M4A to FLAC converter keep ID3 / metadata tags?
+
Yes — title, artist, album, year, track number, and embedded album art are read from M4A and written into the FLAC container where the FLAC format supports tags (which all common ones do).
Can I batch convert hundreds of M4A files to FLAC?
+
Yes — drop a folder of M4A files in and we process them in parallel. Pro has more parallel workers and no per-file size cap, so a 500-file batch finishes in minutes rather than tens of minutes.
Will the FLAC keep the same sample rate as M4A?
+
By default yes (48 kHz M4A -> 48 kHz FLAC). If you need to downsample for compatibility (e.g. 96 kHz -> 44.1 kHz for CD burning) the advanced sample-rate option handles this with a high-quality polyphase resampler.
Can I normalize loudness in the M4A to FLAC step?
+
Yes — the loudness-normalize option applies ITU-R BS.1770 / EBU R128 normalization to the FLAC output, targeting -14 LUFS (streaming standard) or -16 LUFS (podcast standard). Useful when batch-converting tracks with varying mastering levels.
Will the FLAC play on my car stereo / iPod / Sonos?
+
MP3 plays universally. AAC plays on Apple, most Android, and Sonos. FLAC plays on Sonos and modern Android, less well on older iPods. WAV plays on everything but is huge. The advanced options include device presets for these common targets.
Is my M4A file private during conversion?
+
Yes — uploaded M4A files are processed in isolated workers and deleted within minutes. We never play, store, or share audio content. See /privacy/ for the data retention window.
How long does converting a 1-hour M4A to FLAC take?
+
Same-codec re-mux: 10-30 seconds. Re-encode to a different codec: typically 10-20% of source duration, so a 1-hour M4A -> FLAC finishes in 6-12 minutes on the standard pipeline.
Why is the FLAC file louder / quieter than the M4A source?
+
No automatic gain change happens unless you turn on the normalize option. If you do see a level change, your audio player or media library is probably applying ReplayGain or per-track normalization on playback — not us.
Can I convert M4A downloads to FLAC?
+
If the M4A download is unprotected (no DRM), yes. DRM-encrypted streaming files (Spotify, Apple Music) are encrypted at the bit level and we cannot process them. Sources from Bandcamp, SoundCloud, and personal recordings convert fine.