mp3bat
AAC → MP3

Private by design

Convert AAC to MP3 without uploading a thing.

AAC delivers great quality for its size and is everywhere in streaming and Apple's ecosystem — but MP3 remains the safest format for universal playback. Convert when you need something that plays anywhere.

STAYS ON YOUR DEVICE
Drop an audio or video file, or click to choose
It opens here, in this tab — not on our servers.
WAV · M4A · AAC · OGG · FLAC · MP3 · MP4 · MOV · MKV · WEBM → MP3
✓ Your browser— — ✕ — —our servers
About AAC → MP3. AAC is a lossy codec, so converting to MP3 is lossy-to-lossy. Pick 256–320 kbps to keep the result transparent; dropping to 128 kbps twice over is where quality starts to show.

What is AAC?

AAC (Advanced Audio Coding) is the successor to MP3, generally sounding better at the same bitrate. It's the default for YouTube, Apple Music, and most streaming — but MP3 still wins on raw device compatibility.

How to convert AAC to MP3

  1. Drop your AAC file into the box above (or click to choose it).
  2. Pick a bitrate — 320 kbps for best quality, 192 kbps for a smaller file.
  3. Click Convert to MP3. It runs in this tab, on your device.
  4. Download your MP3. Nothing was ever uploaded.

FAQ

Isn't AAC better than MP3?

At the same bitrate, AAC usually does sound a touch better. People still convert to MP3 for compatibility — some hardware and software only handle MP3. If your device plays AAC fine, there's no quality reason to convert.

What bitrate should I choose for AAC to MP3?

Because you're going from one lossy format to another, stay high: 256 or 320 kbps keeps the conversion transparent. Avoid low bitrates, which compound the compression artifacts.

Other conversions

New to this? See how the on-device conversion works, or the guide on choosing a bitrate.