WAV Audio Trimmer & Sample Prep
Keep the region you need. Prepare a usable WAV without uploading it.
Opening your interactive tool…
The interactive controls need JavaScript. You can explore the guide below while they open.
Local file and selection reference
| Quantity | Value |
|---|---|
| Accepted input | PCM16/24 WAV · mono/stereo · 44.1/48 kHz |
| File limits | 12 MiB · 30 seconds |
| Example source | 3 seconds · stereo · 48 kHz · PCM16 |
| Full example selection | Start 0 included · end 144,000 excluded |
| Initial processing | 0 dB gain · no fades · no reverse · original channels |
| Output | PCM16 WAV at source sample rate |
Trim a short WAV with exact frame boundaries
Choose a supported WAV from your device or try the original three-second example. The file is opened and processed locally in your browser. Set the start and end in seconds, or use exact frame controls and single-frame nudges, then hear the prepared selection. Seconds round to the nearest source frame.
The start frame is included and the end frame is excluded. At 48 kHz, 48,000 frames describe one second, regardless of whether the source is mono or stereo. The waveform provides an overview; the frame numbers define the actual edit.
Prepare the edges, level and output channels
Optional controls add fade-in and fade-out, reverse the selected region, adjust gain, or choose original channels, left, right or averaged mono where available. Fades apply to the output edges after reversing. Their displayed frame lengths reflect rounding at the source sample rate.
Gain ranges from −24 to +12 dB, and an edit is refused if its output would exceed the supported sample limit. Nothing is silently clipped to fit. Fades must fit inside the selection; invalid drafts stay visible so you can correct them. Undo restores a previous edit.
Keep a prepared file with explicit format limits
Input supports uncompressed 16-bit or 24-bit PCM WAV, mono or stereo, at 44.1 or 48 kHz, up to 12 MiB and 30 seconds. MP3, floating-point WAV and other formats are outside this bounded editor. Convert them in music software before using this page.
The output is 16-bit PCM WAV at the source sample rate, with the selected processing and channels. A 24-bit source is converted to 16-bit and extra source metadata is not copied. Preview uses half gain for comfort; the download keeps the prepared level. Trimming and fades do not guarantee a seamless musical loop.
Common questions
Is my WAV uploaded to a server?
No. This tool reads and processes the selected file in your browser. The example is an original synthesized clip. No account, microphone access or server-side audio processing is required.
Which audio formats can I trim?
Uncompressed PCM16 or PCM24 WAV, mono or stereo, at 44.1 or 48 kHz, no larger than 12 MiB and no longer than 30 seconds. Compressed audio, MP3 and floating-point WAV are not supported.
Will the output preserve my original bit depth and metadata?
It uses 16-bit PCM at the original supported sample rate. A 24-bit input is converted to 16-bit; extra source metadata is not copied. The output reflects the selected frame region and processing.