MP3 to WAV Converter
Convert MP3 audio files to WAV audio right in your browser — free, private and with no size limit.
Drop your file here
or click to browse
On first use, a ~30 MB conversion engine is downloaded to your browser (one time only).
This file is processed in your browser and never uploaded to a server.
How to convert MP3 to WAV
- 1Drop your MP3 file into the box above, or click to choose it from your device.
- 2Click Convert. The conversion runs locally in your browser — nothing is uploaded.
- 3Download your new WAV file as soon as it's ready.
Why convert MP3 to WAV?
MP3 is lossy, so some audio detail is lost compared with the original recording. WAV keeps full, uncompressed audio quality — ideal for editing and production.
Why people make this conversion
Digital audio workstations edit uncompressed. One MP3-to-WAV hop means every later edit avoids re-encoding artifacts.
The size math: MP3 vs WAV
At typical quality a minute of content weighs about 1.4 MB as MP3 and 10.1 MB as WAV — after conversion your WAV file comes out about 7.2× larger.
What is MP3?
MP3 is the most popular audio format. It compresses music and speech into small files that play on any device.
- MIME type: audio/mpeg
- Standardized: 1993 (MPEG-1 Audio Layer III)
- Common bitrates: 128–320 kbps
- Plays on essentially every device made since 1993
What is WAV?
WAV is an uncompressed audio format that stores the full sound quality, used in recording and editing.
- MIME type: audio/wav
- Developed by: IBM and Microsoft, 1991
- Uncompressed PCM — CD quality means about 10 MB per minute
- The recording and editing standard; archive masters stay in WAV
Frequently asked questions
- Is this MP3 to WAV converter free?
- Yes, it's completely free with no sign-up, no watermark and no daily limits.
- Are my MP3 files uploaded to a server?
- No. The conversion happens entirely inside your browser, so your files never leave your device.
- Is there a file size limit?
- Filenary sets no limit — even files over 1 GB work. The only practical limit is your device's memory.
- Will converting MP3 to WAV reduce the quality?
- WAV is a lossless format, so no extra detail is thrown away during the conversion — the result looks exactly like the source.
- Can I convert several MP3 files at once?
- This converter handles one file at a time. When it's done, click Start over to convert the next MP3 file.
- Does it work on iPhone, Android, Mac and Windows?
- Yes. It runs in any modern browser — Chrome, Safari, Edge or Firefox — on phones, tablets and computers, with nothing to install.
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