MP3 to WAV
Upload an MP3 file and convert it to WAV (Waveform Audio) format. WAV is an uncompressed audio format that preserves full quality and is widely used in audio editing, music production, and professional workflows. The output is a standard PCM WAV file.
This is useful when your audio software requires WAV input, when you need an uncompressed master for further editing, or when working with tools that don't support MP3. Note that WAV files are significantly larger than MP3 — a 5 MB MP3 typically produces a 50+ MB WAV.
Everything runs in your browser using ffmpeg.wasm — your audio is never uploaded to a server.
By The Paper Room Editorial Team — Audio Tools
Frequently asked questions
Will the WAV sound better than the MP3?▼
No. Converting from MP3 to WAV decompresses the audio to its full PCM representation, but any quality lost during the original MP3 encoding is gone permanently. The WAV will sound identical to the MP3 — it will just be larger. WAV is useful for compatibility and editing, not for improving quality.
Why is the WAV file so much larger?▼
WAV is uncompressed PCM audio. A typical CD-quality stereo WAV file is about 10 MB per minute. MP3 compresses this by 5-10x depending on bitrate. The size increase is expected and normal.
What sample rate and bit depth will the output be?▼
The output preserves the sample rate and channel layout of the input MP3 and decodes to 16-bit PCM, which is the standard for WAV files.