Audio to WAV Converter

What the Audio to WAV Converter Does

The Audio to WAV Converter turns any audio file your browser can play into an uncompressed 16-bit PCM WAV file. MP3, OGG, AAC, FLAC, M4A, Opus, and WAV inputs are all decoded locally with the Web Audio API and re-encoded into a standard WAV container. No file is ever uploaded: decoding, conversion, and download all happen on your device.

How to Convert Audio to WAV

Drop an audio file onto the upload area or click it to browse your device.
Wait a moment while the file is decoded and the file details appear: duration, sample rate, and channel layout.
Preview the original audio and the converted WAV directly in the page.
Press Download WAV to save the converted file, named after the original with a -converted.wav suffix.

There is nothing to configure. The converter keeps the original sample rate and channel count, so stereo stays stereo and mono stays mono. Only the container and encoding change.

Which Formats Are Supported

The converter accepts any audio format the browser can decode. In practice that covers MP3, WAV, OGG Vorbis, Opus, AAC and M4A, FLAC, AIFF, and WebM audio in the major browsers. Because decoding is delegated to the browser, support can vary slightly between Chrome, Firefox, Safari, and Edge: every modern browser handles MP3 and WAV, while FLAC and M4A support depends on the platform. If a file cannot be decoded, the tool says so immediately instead of failing silently.

Why WAV?

WAV stores raw pulse-code modulation samples with no lossy compression, wrapped in a simple container that virtually every operating system, editor, and audio library reads natively. That makes it the safest format for editing, transcription, sampling, and archiving. The tradeoff is size: because nothing is compressed, WAV files are much larger than the MP3 or OGG they came from.

How Large Is the WAV File?

The output size is fully determined by the sample rate, channel count, bit depth, and duration:

\[ \text{size (bytes)} = \text{sample rate} \times \text{channels} \times \frac{\text{bit depth}}{8} \times \text{duration (s)} + 44 \]

For example, one minute of CD-quality stereo audio at 44,100 Hz and 16-bit depth takes \(44{,}100 \times 2 \times 2 \times 60 \approx 10.6\) MB, plus the 44-byte header. The tool shows the exact converted size before you download. To estimate sizes for other sample rates and bit depths without converting, use the Audio File Size Calculator.

Privacy and Offline Use

Everything runs in the browser. Your audio never touches a server, which matters for unreleased music, voice notes, interviews, and any recording covered by confidentiality. Once the page is loaded, the converter keeps working without a network connection.

Related Audio Tools

Audio Splitter cuts a recording into separate parts before or after conversion.
Audio Extractor pulls the audio track out of a video file.
MP3 Reverser plays a track backwards and exports the result as WAV.
MP3 to Base64 Converter embeds audio data directly into HTML, CSS, or JSON.

Frequently Asked Questions

Can this tool convert WAV to MP3?

No. Browsers can decode MP3 but cannot encode it without a large external library, so this converter outputs WAV only. WAV is lossless, which is usually the better starting point anyway: convert to WAV here, then encode to MP3 with a desktop encoder if you still need the smaller size.

Is there a file size limit?

There is no fixed limit, but decoding happens in memory, so very large files are bounded by your device's available RAM. Files of a few dozen megabytes convert comfortably on typical laptops, phones, and tablets.

Will the converted file sound identical to the original?

Yes, for supported inputs. The decoded samples are written to WAV without additional compression, so the output preserves the decoded audio exactly. MP3 and other lossy sources remain lossy recordings; converting them to WAV does not restore detail that was already discarded, but it does not lose anything further either.

Why is the WAV file so much larger than my MP3?

WAV stores every sample uncompressed. An MP3 discards information the ear is unlikely to notice and stores roughly a tenth of the data. That is why one minute of stereo audio is around 10 MB as WAV but only about 1 MB as a 128 kbps MP3.

Is my audio uploaded anywhere?

No. All decoding and encoding happens in your browser with the Web Audio API. Your file never leaves your device, and nothing is stored or transmitted.

Does it work on mobile browsers?

Yes. The tool is fully responsive and works in Chrome, Firefox, Safari, and Edge on phones and tablets. On iOS, very long recordings may be limited by available memory.

Which sample rate and channels does the output use?

The converter keeps the decoded sample rate and channel count from the original file. It does not force 44.1 kHz or downmix to mono, so what you put in is what you get out.

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