How are the segments made equal when the file does not divide evenly?

The total sample count is divided by the requested number, and the remainder is handed out one sample at a time to the earliest segments. So a file of ten thousand and one samples in four parts gives three segments of twenty five hundred samples and one of twenty five hundred and one, covering everything with nothing lost.

Will a slice click when I play it?

It can, because the boundary falls where the arithmetic puts it rather than at a zero crossing, so a segment may begin or end on a non-zero sample. Adding a very short fade at each end of a slice removes it, and slicing speech or percussive material rarely shows the problem.

Can I choose fifty piece boundaries by time instead of a count?

Yes, that is the fixed length mode: enter a segment length in seconds and the tool steps through the file at that interval. The last segment is shorter, because there is simply no more audio left to fill it.

Does slicing degrade the audio?

No, each segment is a straight copy of the source samples written into its own sixteen bit WAV, so nothing is filtered, gained or re-encoded. The only losslessness caveat is that the source itself is decoded first, which is how any editor reads the file.

Is there a limit on how many segments I can make?

Equal parts accepts up to sixty four, and fixed length can produce more if the segments are short enough. Every segment becomes its own download, so a very fine division produces a long list rather than an error.

Audio Slicer

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Audio Slicer divides one file into many pieces and gives each piece its own download. Two modes do the dividing: a number of equal parts, or a fixed length per segment with a shorter tail.

What is Audio Slicer?

Drop a file, choose how it should be divided, and slice. The panel lists every segment with its file name, its length and its size, each as its own download.

The two modes and their controls:

Equal parts, from two to sixty four, dividing the file into segments as close to the same length as the arithmetic allows.
Fixed length, in seconds, cutting a segment every so many seconds until the file runs out.
A file header showing the source name and total duration, with a control to choose a different file.
A scrollable list of results, each row a download with the segment number in the name.

Both modes work on sample offsets rather than on seconds, which is what keeps the arithmetic exact. Equal parts divides the total sample count by the requested number, gives every segment that base length, and distributes the remainder one sample at a time across the earliest segments, so the pieces are as even as whole samples permit and together they cover the file with nothing lost. Fixed length multiplies the segment duration by the sample rate, rounds it, and steps through the file in that increment, with a final segment that is shorter because the material simply ends. Because the boundaries fall wherever the arithmetic puts them, a slice edge can land mid-waveform and click when played alone, which is worth knowing before slicing a piece of music into sixteen parts. Everything is produced from a single decode, so slicing a long file into many pieces does not decode it repeatedly. Every segment is a usable file in its own right, encoded once and given a numbered name that keeps the pieces in order. Equal parts is the mode to reach for when the count matters, such as dividing a long recording for transcription, and fixed length is the mode when the size of each piece matters instead, such as preparing material for a sampler with a defined slot length. Anyone who needs to check the arithmetic first can read the segment count and the total duration together on the page and confirm that nothing was dropped from the end.

What the tool does not do:

No content-aware boundaries, so a slice can fall anywhere including through a note.
No fade at the segment edges, and no crossfade between them.
No audio is discarded, but a segment boundary that lands on a loud sample can click.
Segments are mono or stereo according to the source and cannot be re-channelled here.
Everything is produced at once, so a file sliced into sixty four parts produces sixty four downloads.
The output format is sixteen bit WAV regardless of the source.

Use it when an even division is what the job needs: splitting a long recording into equal chunks for transcription, cutting a loop into retriggerable pieces, preparing a fixed-length file for a sampler, or dividing an audiobook into sections of a known size. When the division should follow pauses in the audio, the splitter finds those instead, and when the pieces should be auditioned before being kept, the sample chopper adds playback per slice.

How to use Audio Slicer

Drop an audio file and check the total duration shown in the header.
Choose equal parts and enter a count, or choose fixed length and enter a segment length in seconds.
Press slice and wait for the list to appear.
Download the segments you need; the naming keeps them in order.

When to use Audio Slicer vs related tools

Audio Slicer is the arithmetic divider, so it suits equal chunks for transcription, sampler-ready pieces and known-length sections. Audio Splitter divides on the silence in the audio instead, and Sample Chopper slices at a fixed length with playback per piece so you can audition before keeping. When the file should keep its single output but lose some interior material, Audio Cutter and Audio Trimmer do that. When the pieces want to run backwards, Audio Reverser flips the audio end to end in one step.

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.