WAV Cutter
Cut a WAV file sample-accurately. No re-encoding, no upload.
Drop your audio here
MP3, WAV, M4A, OGG, FLAC · up to 100 MB
- No upload
- No signup
- No watermark
- Works on mobile
Cut a WAV in three steps
- Choose fileDrop a WAV above, or browse for it. Other formats are decoded first, so this page is for WAV in and WAV out.
- Select rangeDrag the two handles, or type start and end to the hundredth of a second when you need an exact cut.
- Export WAVDownload the selection as a lossless WAV. If your file is uncompressed WAV, the samples are copied byte for byte and nothing is re-encoded. Compressed or non-WAV files are decoded and re-encoded at 44.1 kHz.
Lossless by default
WAV export is the default here, and it never re-encodes. The samples inside your selected range are copied as they are and written into a new WAV file, so nothing is added and nothing is thrown away.
How WAV trimming works
A WAV file is a short header followed by raw PCM samples. Cutting it means reading the samples between your start and end points and writing them out with a fresh 44-byte header that describes the new length.
That is all this page does. Your browser decodes the file into memory, the selected samples are copied, and a new WAV is assembled on your device. The math is exact: the exported length matches the selected length to a single sample.
MP3 export is also available when you need a smaller file, but MP3 requires re-encoding. Use WAV when the original audio matters.
WAV Cutter FAQ
Is WAV export lossless?
Yes, for uncompressed WAV files (8, 16, 24 or 32-bit PCM, including WAVE_FORMAT_EXTENSIBLE). The selected range is copied byte for byte, so the samples are identical to the source. If the upload is a compressed WAV or a different format, it is decoded and re-encoded at 44.1 kHz, and the result says so.
Why is the WAV file bigger than my MP3?
WAV stores uncompressed audio. A 30-second WAV is roughly 5 MB; the same clip as MP3 is under 1 MB.
Does trimming change the bit depth or sample rate?
Not for uncompressed WAV. The selected range is copied byte for byte, so an 8, 16, 24 or 32-bit file at any sample rate comes out with exactly the same format and the same samples.
Can I export several different parts of one file?
Yes. The file stays loaded after an export, so you can move the handles and download another range without uploading again. Each download contains only the current selection.
What if my WAV is compressed?
Some WAV files hold ADPCM or other compressed audio. Those cannot be cut without decoding, so the tool decodes them and re-encodes the result at 44.1 kHz, and a note on the page says so.