Convert MP3 files to uncompressed WAV format for professional audio editing and production.
Or drag and drop your file here
The MP3 to WAV Converter by ConvertResize.com is a professional-grade tool for converting compressed MP3 files to uncompressed WAV format right in your browser. No registration, no file uploads to servers, and no hidden fees—just select your MP3 file and convert with customizable quality settings.
Our audio converter is designed for maximum privacy and professional use: all processing happens locally in your browser using Web Audio API, so your audio files never leave your device. Whether you're preparing files for audio editing, ensuring compatibility with professional software, or creating archives in lossless format, you have complete control over your audio content.
With flexible output settings including multiple sample rates (44.1kHz, 48kHz, 96kHz) and bit depths (16-bit, 24-bit, 32-bit float), automatic resampling, and real-time progress tracking, this tool is perfect for audio professionals, musicians, podcasters, and anyone working with digital audio. It works seamlessly on desktops, laptops, tablets, and smartphones.
Yes! This MP3 to WAV converter works 100% client-side. Once loaded, you can use it without an internet connection.
Will my audio files ever leave my device?No, all processing is done in your browser using Web Audio API. Your MP3 files never leave your computer, tablet, or phone.
Does converting MP3 to WAV improve audio quality?No, converting MP3 to WAV doesn't improve audio quality since MP3 is already a lossy format. However, WAV prevents further quality loss during editing and is required by many professional audio applications.
What's the difference between the bit depth options?16-bit is standard CD quality, 24-bit offers higher dynamic range for professional work, and 32-bit float provides maximum precision for audio processing and editing.
Which sample rate should I choose?44.1kHz for CD-quality audio, 48kHz for video production and professional audio, or 96kHz for high-resolution audio archiving and mastering.
Why are WAV files so much larger than MP3?WAV files are uncompressed, so they contain all the original audio data. Expect WAV files to be 8-10 times larger than the original MP3, depending on the settings chosen.
File won't upload? Make sure you're selecting a valid MP3 file. Some corrupted or unusual MP3 encodings may not be supported.
Conversion fails during resampling? Try using the original sample rate instead of resampling, or refresh the page and try again with a different browser.
No audio in the converted WAV? The original MP3 file may be corrupted, very quiet, or encoded in an unusual format.
Browser runs out of memory? Large MP3 files or high sample rates require significant memory. Try using lower settings or a computer with more RAM.
Download doesn't work? Some browsers may block large file downloads. Check your download settings, try right-clicking the download link, or use a different browser.
Converted file sounds different? This is normal - you're hearing the uncompressed version. WAV files may sound slightly different due to the absence of MP3 compression artifacts.
Still having problems? Clear your browser cache, disable extensions that might interfere with audio processing, or contact us using the link in the footer for more help.