WAV Compressor
Cut the size of huge WAV recordings while keeping the quality you need.
- Files never leave your device
- 100% free
- No sign-up
- No watermark
- Works offline after first load
How to compress a WAV file
- Open your WAV files.
- Choose ADPCM, FLAC, a lower sample rate or MP3.
- Click Compress and download.
About WAV Compressor
New tool.
Good for
- New tool
Frequently asked questions
How can a WAV be compressed and stay a WAV?
IMA ADPCM stores 4 bits per sample instead of 16 (4× smaller) and most players support it; mono halves the size and 22 kHz halves it again — fine for speech.
How do I compress without losing quality?
Choose FLAC — it is lossless, about 40–60% smaller, and converts back to an identical WAV.
What gives the smallest file?
MP3, M4A or Opus — typically 85–95% smaller than WAV. Use the target size field to hit an exact size.
Can I convert many files at once?
Yes. Add as many files as you like; they are converted one after another with the same settings, each with its own download, plus a ZIP of all of them.
Are my files uploaded?
No. Files are compressed in your browser, so your audio never leaves your device. Some formats use FFmpeg (WebAssembly), which downloads once — about 32 MB — and is then cached.