WMA to WAV Converter
Convert WMA files to WAV format online for free. No installation or registration required.
Quick Answer: How to Convert WMA to WAV
WMA is Microsoft's Windows Media Audio family of codecs, while WAV is an uncompressed audio container that stores sound exactly as digitized. Converting WMA to WAV wraps or re-encodes your audio into the WAV structure, but be aware: quality lost when the WMA was created stays lost — a WAV made from a lossy source is a perfect copy of an imperfect original. Run it free at practicalwebtools.com/convert/audio/wma-to-wav: drop in your WMA, adjust settings if you like, and download the WAV — no signup, no upload, everything stays on your device.
WMA vs WAV: Which One and Why
WMA is Microsoft's Windows Media Audio family of codecs, launched by Microsoft in 1999 to compete with MP3 and later AAC. WAV is an uncompressed audio container that stores sound exactly as digitized, created by Microsoft and IBM in 1991 for Windows 3.1 multimedia. People reach for WMA mainly for legacy Windows media libraries, some voice recorders, while WAV is the usual choice for studio recording and mixing, sound effects, archiving masters. WMA's headline strength: good quality at low bitrates (64–128 kbps). WAV's: bit-perfect audio with zero generational loss. On the other side of the ledger, WMA limitation: near-zero support on Apple devices — and WAV limitation: enormous files — a 4-minute song is ~42 MB at 44.1 kHz stereo.
How to Convert WMA to WAV Online
- 1
Add your WMA file: Drag and drop it into the converter, or click to browse. WMA files up to the size limit are accepted, and nothing is uploaded — processing runs locally in your browser.
- 2
Set WAV options: The converter re-encodes into WAV, which is none (typically) — CD-quality stereo WAV runs 10.6 MB per minute. Set quality to maximum since you're going lossless — no reason to trim bits you already have.
- 3
Download the WAV: Conversion runs on your device. When it completes, download the WAV file — repeat for as many files as you need, free and unlimited.
Key Facts
- WMA: launched by Microsoft in 1999 to compete with MP3 and later AAC, lossy (Standard and Pro variants); WMA Lossless also exists.
- WAV: created by Microsoft and IBM in 1991 for Windows 3.1 multimedia, none (typically) — CD-quality stereo WAV runs 10.6 MB per minute.
- Converting WMA → WAV cannot restore what the WMA encoding already discarded — the WAV is a faithful copy of the WMA, not of the original recording.
- WMA strength: good quality at low bitrates (64–128 kbps).
- WAV strength: bit-perfect audio with zero generational loss.
- WMA limitation to know: near-zero support on Apple devices.
- WAV limitation to know: enormous files — a 4-minute song is ~42 MB at 44.1 kHz stereo.
- Under the hood: WAV can also wrap compressed codecs, but "WAV" almost always means PCM — pulse-code modulated raw samples
Format Background
WMA
WMA — launched by Microsoft in 1999 to compete with MP3 and later AAC. WMA Pro supports high-resolution multichannel audio, but most hardware labeled "WMA" decodes only the original 1999 codec
WAV
WAV — created by Microsoft and IBM in 1991 for Windows 3.1 multimedia. WAV can also wrap compressed codecs, but "WAV" almost always means PCM — pulse-code modulated raw samples
Frequently Asked Questions
Will converting WMA to WAV lose quality?
The WAV output preserves everything present in your WMA file — but WMA is lossy (Standard and Pro variants); WMA Lossless also exists, so information discarded when that file was made is gone for good. You get a bit-perfect copy of what you have, not a restoration of the original recording.
Are my files uploaded anywhere during WMA → WAV conversion?
No. This converter runs on WebAssembly inside your browser — your WMA file is read from disk, processed by your device's CPU, and the WAV is written back locally. There is no server upload at any point, which also means no size-based throttling or waiting in queue.
Does converting WMA to WAV restore lost quality?
No — and this trips up a lot of people. WMA is lossy (Standard and Pro variants); WMA Lossless also exists: the data it discarded at creation time cannot be reconstructed by any converter. A WAV from a WMA source sounds exactly as good as the WMA, no better. The reasons to convert anyway are compatibility, editing headroom, and future-proofing — not restoration.
Why is my WAV file larger/smaller than the WMA original?
WAV is none (typically) — CD-quality stereo WAV runs 10.6 MB per minute, while WMA is lossy (Standard and Pro variants); WMA Lossless also exists. File size follows from that: moving to a less aggressive or lossless target grows the file; moving to efficient lossy compression shrinks it. WAV can also wrap compressed codecs, but "WAV" almost always means PCM — pulse-code modulated raw samples
What devices and apps play WAV files?
every professional audio tool; native playback on Windows and macOS. Enormous files — a 4-minute song is ~42 MB at 44.1 kHz stereo — worth knowing before you standardize on it.
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Further reading
Guides and explainers on the Practical Web Tools blog cover audio and video formats in depth — or browse every audio converters pair from the hub.