Convert MP3 to WAV Online
Upload an MP3 file and convert it to uncompressed WAV format. Ideal for audio editing, production workflows, and professional use.
How it works
- Upload your MP3 file. Drag your MP3 into DomeScribe. Constant bitrate, variable bitrate, and joint-stereo MP3 files are all accepted without any extra configuration.
- Verify source audio properties. DomeScribe displays the MP3's bitrate, sample rate, and channel mode. This helps you understand the quality ceiling of the source before expanding it to WAV.
- Set WAV output format. Choose the bit depth (16-bit for CD quality or 24-bit for studio workflows) and sample rate (44.1 kHz or 48 kHz). DomeScribe defaults to settings that match your source for a clean decode.
- Decode and download the WAV. Click Convert to decode your MP3 into an uncompressed WAV file. The result is ideal for audio editing software, DAWs, and any workflow that requires a PCM format.
Converter at a glance
- Video formats
- MP4, WebM, MOV, AVI, MKV
- Audio formats
- MP3, WAV, FLAC, M4A, OGG, AAC
- Privacy
- Runs 100% in your browser (WebAssembly) — your file is never uploaded to a server
- Speed
- No upload or download wait — conversion starts instantly, even for large files
- Watermark
- None, ever
- Free tier
- 10 conversions per month
Frequently asked questions
Does converting MP3 to WAV restore the original uncompressed quality?
No — converting an MP3 to WAV in DomeScribe decodes the compressed audio into an uncompressed PCM format, but it cannot recover audio data that was discarded during the original MP3 encoding. The WAV will sound identical to the MP3, just stored in a lossless container.
Why would I convert MP3 to WAV if it does not improve quality?
Many audio editors, DAWs, and professional tools require uncompressed WAV input. CD burning software also expects WAV files. Converting with DomeScribe gives you a format that is universally accepted by production workflows without any further quality degradation during editing.
What bit depth and sample rate should I choose for the WAV output?
For most purposes, 16-bit at 44.1 kHz (CD quality) is ideal and matches what the MP3 codec targets. Choosing 24-bit or 48 kHz in DomeScribe will not add real detail but can be useful if your DAW project is set to those specifications.
How much larger will the WAV file be compared to the MP3?
Substantially larger. A 5 MB MP3 file typically expands to 40-50 MB once DomeScribe decodes it to WAV, because WAV stores every audio sample without compression. Make sure you have enough disk space before converting large collections.
Can I use the converted WAV file for CD burning?
Yes, that is one of the most common reasons for this conversion. Set DomeScribe's output to 16-bit, 44.1 kHz stereo WAV — the Red Book CD audio standard — and the file is ready to burn directly to an audio CD using any burning software.
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