MP3 to WAV converter
Convert MP3 to WAV online for free, with the layout and quality you'd expect from a desktop app but none of the setup.
Convert MP3 to WAV
Drop your files to try StandardsPDF. This tool is available in the full workspace.
Preserves bitrate and channels for clean playback
Handles long recordings and full albums in one job
Files auto-deleted from our servers within 60 minutes
Works in any modern browser – desktop, tablet or phone
How it works
Convert MP3 to WAV in 3 steps
Upload or drag in your MP3 file
Choose your output options if you need them
Download the finished WAV
Private by default
Files are encrypted in transit and deleted within 60 minutes.
Fast
Most jobs finish in under 10 seconds. No queueing.
No signup on free tier
5 documents per day, no credit card required.
FAQ
Frequently asked questions
How do I convert MP3 to WAV?+
Upload your MP3 file (or drag it onto the box above), wait a few seconds while StandardsPDF converts it in your browser, then download the WAV. There is nothing to install and no account required.
Is converting MP3 to WAV free?+
Yes. MP3 to WAV conversion is free on the StandardsPDF free tier – no watermark, no signup, and no credit card. A Pro tier lifts the file-size and daily limits if you need more.
Will the WAV keep the quality of my MP3?+
StandardsPDF aims for the highest fidelity the WAV format allows, so your audio file comes through looking as close to the original as possible. Some format-specific details may adapt where WAV works differently to MP3.
Can I choose the bitrate when converting MP3 to WAV?+
On the free tier StandardsPDF picks a clean default bitrate for your WAV; Pro lets you set the exact bitrate and sample rate for the MP3 to WAV conversion.
How long does a MP3 to WAV conversion take?+
Most MP3 files convert to WAV in a few seconds. Larger or higher-resolution files take a little longer, but there is never a queue on the free tier.
Is my MP3 file kept private during MP3 to WAV conversion?+
Yes. Your MP3 is processed in an isolated worker, never shared, and permanently deleted from our servers within 60 minutes. Most MP3 to WAV conversions happen right in your browser.
Do I need to install anything to convert MP3 to WAV?+
No. Converting MP3 to WAV runs entirely in the browser – no desktop software, no extensions and no account for the free tier.
What is the maximum MP3 file size I can convert to WAV?+
Up to 100 MB per MP3 on the free tier and 2 GB on Pro. If your MP3 is larger, split it first or upgrade for the higher limit.