Convert FLAC to WAV
One lossless format to another — bit-perfect audio, unpacked on your own device.
Drop your video or audio here
or
MP4, MOV, WebM, MKV, AVI, MP3, WAV and more — any size, no upload
🔒 Files never leave your device — everything runs in your browser.
FLAC and WAV hold identical audio in different suits: FLAC compresses losslessly for storage, WAV stores raw samples for maximum compatibility. Converting between them changes nothing about the sound — this is the rare conversion that is mathematically lossless, bit-for-bit, in the direction every editor and legacy tool prefers.
The usual trigger is software: DAWs, samplers, car systems, and countless professional tools that predate FLAC or simply never adopted it. The tool unpacks the FLAC to a standard WAV in your browser — audiophile collections and studio masters never upload anywhere in the process.
How it works
- Drop your file
Any common format, any size. Nothing is uploaded — the tool runs in your browser.
- Convert
Compatible files are repackaged instantly with zero quality loss; others are hardware-transcoded at high quality.
- Download
Your converted file is ready on your device — nothing to wait for, nothing to delete from a server.
Frequently asked questions
Is FLAC to WAV truly lossless?
Yes, mathematically — FLAC is a lossless format, and unpacking it to WAV reproduces the identical samples. The WAV holds exactly the audio the FLAC held.
How much bigger will the WAV be?
FLAC typically saves 40–60%, so expect the WAV to roughly double the file size. That growth is the only cost of the conversion — the audio itself is unchanged.
Why keep FLAC at all if WAV is more compatible?
FLAC is the better shelf format: half the size, with tagging and checksums built in. The sensible pattern is archive in FLAC, convert to WAV when a specific tool demands it — which is what this page is for.
Is my file uploaded to a server?
No. ConvertUno runs entirely in your browser on your own device. Your file never leaves your computer or phone — there is no upload at all.
Is it really free, with no watermark?
Yes. Processing happens on your device, so serving you costs us almost nothing — no watermark, no account, no file-size limit, no daily quota.