About the Audio to WAV Converter
Audio to WAV Converter turns audio files into standard 16-bit WAV files. Your browser decodes the file, the tool optionally mixes it down to mono or changes the sample rate, and then it writes an uncompressed WAV you can download. Several files can be converted one after another and downloaded together as a ZIP. Which input formats work depends on your browser. WAV is much bigger than MP3, and converting from MP3 or AAC to WAV does not bring back detail that compression removed. The tool cannot make MP3 files, and tags and cover art are not kept. Nothing is uploaded.
Updated September 2026
How to use the Audio to WAV Converter
- 1Choose Channels and Sample rate first if you want to change them. The defaults keep the audio as it is.
- 2Select one or more audio files, or drop them on the page.
- 3Wait while each file is converted. The list shows length, rate, channels and size.
- 4Click Download next to a file, or Download all as ZIP when you have several.
Converting audio to WAV
WAV is a plain container for uncompressed audio. It is the format that many audio editors, game engines, speech-recognition tools and hardware samplers accept without fuss.
The converter uses your browser's own audio decoder to read the source file, then writes the samples as 16-bit numbers. That means the formats it can open are the ones your browser plays. Chrome and Edge handle most, while older Safari versions may not decode OGG or Opus.
Mono, stereo and sample rate
Keep leaves the channels as they are, so stereo stays stereo. Mono averages the channels into one, which halves the size and suits voice recordings, podcasts and phone calls.
The sample rate is how many times per second the sound is measured. Higher rates capture higher pitches. Lowering the rate uses your browser's resampler when it can, or a simple built-in interpolation otherwise, which is fine for speech but can dull music.
- Music: keep the original rate and stereo.
- Speech: mono at 16000 or 22050 Hz is usually enough.
- Telephone-style audio: 8000 Hz mono.
Why WAV files are large
Compression formats like MP3 discard sounds that are hard to hear, while WAV stores every sample. One minute of stereo audio at 44100 Hz and 16 bits is roughly 10 MB, so an hour is over 600 MB.
Because everything is held in your device's memory, the tool warns you before making a WAV of more than 500 MB and stops at the format's size limit. Trim long recordings first, or use Mono and a lower sample rate.
When to use WAV instead of MP3
Choose WAV when you will edit the audio further, need a lossless working copy, or have software that cannot read MP3. Choose MP3 or another compressed format for sharing and streaming, where size matters.
To capture new sound, try Voice Recorder or Screen Recorder, and to turn text into speech use Text to Speech. Unit Converter is handy for converting sizes and durations that come up along the way.
Features
- MP3, M4A, AAC, OGG, Opus, FLAC, WebM and WAV inputs, as far as your browser decodes them
- 16-bit PCM WAV output
- Mix down to mono
- Sample rate from 8000 to 48000 Hz
- Several files at once, with a ZIP download
- Length and size shown for every result
- Private: audio never leaves your device
Frequently asked questions
How do I convert MP3 to WAV?
Select the MP3 file, leave the options as they are, and wait for the list to show the result. Click Download to save the WAV. The MP3 is decoded by your browser and written out as uncompressed 16-bit audio at the same length.
Does converting to WAV improve quality?
No. WAV stores audio without compression, but it cannot restore detail that MP3 or AAC already threw away. A WAV made from an MP3 sounds the same as the MP3. It can still be useful because some editors and hardware only accept WAV.
Why is the WAV file so big?
Uncompressed CD-quality stereo takes about 10 MB per minute, several times more than a typical MP3. Choosing Mono halves the size, and a lower sample rate such as 22050 Hz shrinks it further, at the cost of fidelity.
Can I convert to MP3 here?
No. This tool only creates WAV files. It has no MP3 encoder, and it cannot compress audio. Use it when you need uncompressed audio for editing, samples, speech tools or older hardware.
What sample rate should I choose?
Keep original unless you have a reason. 44100 Hz is standard for music, 48000 Hz for video, and 16000 Hz or 22050 Hz is enough for speech. 8000 Hz sounds like a telephone. Lower rates give smaller files.
Are my audio files uploaded?
No. The file is read and decoded inside your browser tab, the WAV is built in memory, and it is offered back to you as a download. No copy is sent to a server.