AAC to WAV Converter
Need uncompressed audio for editing or production? Converting AAC to WAV decodes your compressed audio into a standard PCM WAV file that is compatible with every audio editor, DAW, and production tool on the market.
The WAV output preserves the full decoded quality of the AAC source. The file will be much larger but no higher quality than the original AAC encoding.
How to Convert AAC to WAV
- 1
Upload your AAC or M4A file.
- 2
Select WAV as the output.
- 3
Click Convert and download the uncompressed WAV.
AAC vs WAV — Format Comparison
| Feature | AAC | WAV |
|---|---|---|
| Full Name | Advanced Audio Coding | Waveform Audio File Format |
| Type | Audio | Audio |
| Codec | AAC-LC / HE-AAC / AAC-ELD | PCM (uncompressed) |
| Lossless | No | Yes |
| Extension | .aac | .wav |
| Best For | Apple Music and iTunes | Professional music production and mastering |
AAC Strengths
- Better quality than MP3 at same bitrate
- Native support on Apple devices and iTunes
- Default audio codec in MP4 video containers
WAV Strengths
- Lossless audio quality — no data is lost
- Industry standard for professional audio production
- Universal support across all operating systems
Frequently Asked Questions
When to Convert AAC to WAV
- Importing AAC audio into professional DAWs
- Preparing audio for video editing
- Creating uncompressed working copies from compressed sources
Related Conversions
About Our AAC to WAV Converter
This converter uses FFmpeg compiled to WebAssembly (WASM) to transform your AAC files into WAV format entirely inside your web browser. When you select a file for conversion, the processing happens locally on your device. Your file is never uploaded to any server, never transmitted over the internet, and never stored anywhere outside your own computer. This privacy-first architecture makes our tool safe for confidential and sensitive content — including legal recordings, medical files, financial presentations, personal media, and any other material you would not want on a third-party server.
The conversion process works by decoding the AAC input using FFmpeg's highly optimized decoders, then encoding the output in WAV format with carefully tuned settings that balance quality and file size. When possible, the tool uses stream copy mode to remux (rewrap) compatible streams without re-encoding, which preserves the original quality with zero generational loss. When re-encoding is necessary due to codec differences between the two formats, the converter uses high-quality encoding settings to minimize any visible or audible quality reduction.
Supported input formats include MP3, WAV, AAC, FLAC, and OGG for audio, with automatic detection of the codecs and parameters inside your source file. The output is optimized for maximum compatibility with modern devices and platforms including Windows, macOS, Linux, iOS, Android, smart TVs, and all major web browsers.
Why browser-based conversion is safer: traditional online converters require you to upload your file to a remote server, where it is processed by third-party infrastructure and then made available for download. This workflow exposes your data to interception during upload, unauthorized access on the server, unclear data retention policies, and potential data breaches. Professionals in regulated industries such as healthcare (HIPAA), legal (attorney-client privilege), and finance (SOX, GDPR) often cannot use server-based converters without violating compliance requirements. Our WebAssembly-powered approach eliminates all of these risks by ensuring your data never leaves the browser sandbox on your own device.
The tool handles files up to 500 MB on desktop browsers and 200 MB on mobile devices. No account registration, no software installation, and no recurring subscription is required. Conversion typically completes in seconds for small files and a few minutes for larger ones, depending on your device's processing capabilities. Once the conversion is finished, you can download the result immediately and the source data is discarded from browser memory.