Is this AAC to WAV converter really free?

Yes. Up to 5 files at a time, no signup, no catch. The free tier adds a small watermark to image output — Pro ($9.99/mo or $49/yr) removes it, raises the file size limit to 500 MB, and unlocks unlimited batch conversion.

Are my files uploaded to a server?

No — and you can verify it yourself. Open DevTools → Network tab, then convert a file. You'll see zero upload requests. Everything runs right in your browser. We never see your files.

How long does conversion take?

Usually 1–3 seconds for a typical file. The very first conversion on a fresh page load may take 5–20 seconds while the converter engine loads — after that it's instant. Your CPU does all the work locally.

What is the file size limit?

Free: up to 10 MB per file, 5 files per batch. Pro: up to 500 MB per file, unlimited batch. If you're working with large videos or RAW photos, Pro is built for that.

Can I batch convert multiple AAC files at once?

Yes — drop multiple files at once (or Ctrl/Cmd+click to select them) and they all convert in parallel. Free accounts handle up to 5 files per batch; Pro has no limit.

What bitrate will the converted audio use?

We default to 192 kbps for MP3, 128 kbps for OGG/Opus, and 320 kbps for M4A/AAC. These settings are perceptually transparent — most listeners can't tell the difference in a blind test.

Will my metadata (ID3 tags, album art) be preserved?

Yes, when both formats support it. Tags carry over on conversions like MP3→M4A or FLAC→MP3. WAV has limited tag support, so some metadata may not transfer.

Will my AAC file open as WAV in Audacity?

Yes. WAV is natively supported by Audacity, Adobe Audition, Logic Pro, and all other major audio editors. Convert your AAC first, then import the WAV.

How private is this converter?

Completely private — by design, not policy. There is no upload endpoint. Files are processed right inside your browser tab and disappear the moment you close it. We collect only anonymous page-view counts; your file content is never seen or stored.

AAC to WAV — Free, Lossless Output, No Upload

How to convert AAC to WAV online

1
Drop your AAC file
Drag and drop your Advanced Audio Coding file onto the converter, or click to browse your files. You can select up to 5 at once. Nothing leaves your device — conversion happens right here in the browser.
2
Hit Convert — it happens locally
Click Convert and watch it go. There's no upload, no server queue, no waiting. The converter runs Advanced Audio Coding → Waveform Audio File Format entirely in your browser tab. Most files finish in 1–3 seconds.
3
Download your WAV
Your Waveform Audio File Format file is ready. Click Download, or grab a ZIP if you converted a batch. Close the tab and everything disappears — no copies kept anywhere.

AAC vs WAV: format overview

AAC

Advanced Audio Coding

Dolby, Fraunhofer, Sony, Nokia · 1997

Compression: lossy
Transparency: No

✓ Successor to MP3 — better quality at same bitrate
✓ Native support across Apple, Android, YouTube
✗ Not fully royalty-free

WAV

Waveform Audio File Format

Microsoft and IBM · 1991

Compression: none
Transparency: No

✓ Lossless — no quality degradation
✓ Universal DAW compatibility for production

AAC magic bytes: FF F1 (ADTS) / 00 00 00 xx 66 74 79 70

WAV magic bytes: 52 49 46 46 xx xx xx xx 57 41 56 45

Why convert AAC to WAV?

If you've ever tried to open a AAC file and hit a wall — the app won't accept it, the website rejects it, or the preview just shows a broken icon — you already know why this conversion matters.

Advanced Audio Coding is great for what it was designed for, but it has real-world limitations: not fully royalty-free and not as universal as mp3 in older devices. The moment you step outside that original context, it gets frustrating fast.

Waveform Audio File Format is the safer choice for Audio production, Sound design, Archival masters. Its main advantages — lossless — no quality degradation and universal daw compatibility for production — mean it just works wherever you need it.

A few common reasons people end up here: - Their target app, site, or device doesn't accept AAC - They need a smaller file for email or upload (WAV often compresses better) - They need Waveform Audio File Format's specific capability: lossless — no quality degradation - Compatibility with older software that pre-dates Advanced Audio Coding

The conversion is one-way: you get a WAV that works everywhere Waveform Audio File Format is expected. The original AAC file is not touched.

Quality & file size: AAC to WAV

Typical file sizes: AAC 2–5 MB → WAV 30–50 MB.

Both AAC and WAV use lossy compression. We transcode at high quality settings (equivalent to WAV's recommended web quality) to minimize generational loss.

Color depth: AAC supports standard color, WAV supports standard color.

Transparency: AAC does not support transparency. WAV does not support transparency — transparent areas become solid white.

Frequently asked questions

Privacy: how FormatDrop handles your files

Your AACfiles are converted 100% inside your browser. They are never uploaded to our servers, never stored, and never seen by anyone other than you. This isn't a privacy policy claim — it's an architectural guarantee: our server has no endpoint that receives file bytes.