What happens if two of my cuts overlap?

They are merged into one before anything is removed, so the overlap is not subtracted twice and the running total stays accurate. The spans are also sorted first, which means the order you typed them in does not matter.

Why does the join click after a cut?

Because the two samples that end up next to each other in the output were not neighbours in the source, so their levels rarely match. That discontinuity is the click. Cutting where the material is quiet reduces it, and a very short fade at a boundary removes it entirely.

How much is removed if a span starts before zero?

Only what actually exists. Every boundary is clamped to the file's real length before the pass runs, so a negative or over-long value is limited to the audio rather than producing an error or an unexpected amount of removal.

Can I remove a range from only one channel?

No. The cut applies to every channel at the same offsets, which is what keeps a stereo file coherent. To change one side only, isolate or mix the channels first and cut the result.

Does the tool re-encode the audio it keeps?

It writes the surviving samples into a new sixteen bit WAV, so what is kept is intact sample data rather than a further generation of lossy encoding. Nothing is filtered or gained along the way.

Audio Cutter

You Might Also Need

Audio Splitter

Split audio files into multiple segments

Audio Trimmer

Trim audio files to keep only the parts you need

Sample Chopper

Chop audio into samples

Click & Pop Remover

Remove vinyl clicks and pops

Audio Cutter removes one or more ranges from a file and joins what remains, the way a razor and a splice would. Add a span for each section to remove, and the panel shows the total time that will disappear before you process.

What is Audio Cutter?

Each span has a start and an end in seconds, spans can be added and removed freely, and the running total is shown so the effect on the file's length is known in advance. Processing produces a single WAV with the chosen ranges taken out.

The controls:

One row per cut, each with a start and an end field in seconds and a tenth-second step.
An add-another-cut button for further spans, and a remove control on every row once more than one exists.
A running total of the time to be removed, with a note that overlapping spans are merged.
A single output WAV with a cut suffix.

The merging is the part worth understanding. Spans arrive in whatever order they were typed and are allowed to overlap, so the function normalises each one, sorts them by start, and folds any span that begins inside the previous one into it before a single pass copies everything except the merged ranges. That matters in practice: three overlapping cuts typed carelessly produce one coherent edit rather than duplicated work or double-subtracted time, and the merged total is what the panel reports. The copy pass writes the surviving audio into a new buffer at the right offsets, channel by channel, so a stereo pair stays aligned and the result is shorter by exactly the merged total. As with the trimmer the boundaries are rounded sample indices, so a span is reproducible, and a span whose end precedes its start is normalised rather than rejected. Removing a range has one consequence worth noticing: the sections either side become neighbours, so the output is shorter by exactly the removed total and no gap is inserted where the material used to be. That is what makes this a splice rather than a filter, and it is also why a cut through a sustained note or a loud passage can leave an audible discontinuity, since the samples either side were never adjacent in the original recording.

What to expect and what not to:

No waveform, so spans are typed rather than dragged onto the audio.
No crossfade at the splice, so a cut either side of a wave can leave a click.
The removed audio is not recoverable from the result; only the original file still holds it.
One output only, so a file cannot also be split into the surviving sections as separate downloads.
Every channel is cut identically, so a range can only be removed from both sides of a stereo file at once.
The output is sixteen bit WAV in all cases.

Use it for the job it was named after: taking out a cough in the middle of a take, removing a false start, cutting a section that should not be heard, or trimming a long recording down to its usable parts. When a single section should be kept instead of removed, the trimmer states the same edit from the positive side, and when silence is the thing to remove, the silence remover finds those ranges automatically.

How to use Audio Cutter

Drop an audio file onto the panel and note the duration.
Enter the start and end of the first range to remove, in seconds.
Add further ranges if needed; overlapping spans are merged automatically.
Check the total time to be removed, press process, and download the shortened WAV.

When to use Audio Cutter vs related tools

Audio Cutter is the tool for removing named ranges, which is the right shape when you know where the problem is. Audio Trimmer keeps one span rather than removing several, and Silence Remover removes the quiet stretches automatically instead of by typed time. Audio Slicer gives every remaining piece its own download rather than joining them again. A cut made at a zero crossing can still leave a click behind, which is what Click & Pop Remover removes.

Privacy & Security

This tool runs entirely in your browser — no data ever leaves your device. There is no server round-trip, no upload, no logging, and no account required. Your input is processed locally using client-side JavaScript and is never stored, transmitted, or accessible to anyone else. When you close the tab, everything disappears.