When an editor, sampler or CD burner insists on WAV — uncompressed PCM made on your own device.
MP3, WAV, M4A, FLAC, OGG… — or drop a video (MP4, MOV, WebM) to extract its audio · nothing is uploaded
No size limit · files are processed on your device and never uploaded · how it works
WAV conversions run instantly in your browser — nothing to download. Other formats use the FFmpeg engine (31 MB, once).
Uncompressed — for editing; large files.
Runs in your browser. Files are never uploaded — you can go offline after the page loads.
Drop files, pick options, download. Whole folders at once, no signup, no daily limit.
The same engines the professionals use — SVGO, resvg, MozJPEG, libwebp, libavif — compiled to run in your browser.
Files are processed on your device and never uploaded. Close the tab and nothing remains anywhere.
This page opens the Audio Converter pre-set to WAV — the format every editor, DAW and burner accepts.
Conversion happens in your browser via FFmpeg in WebAssembly; the files never leave your device.
This is a pre-set view of the Audio Converter. Every option in the toolbar can still be changed.
No — it unpacks the compressed audio into an uncompressed container. Nothing lost by the MP3 encoding comes back; the point is compatibility with software that requires WAV.
WAV stores every sample uncompressed: about 10 MB per minute in stereo. That is normal and exactly what editing software wants.
Most online converters upload your file to a server. InfyTool ships the actual encoders to your browser as WebAssembly instead, so processing happens inside your tab — faster for batches, and nothing to delete afterwards.
InfyTool is built by the same team as these free libraries.