Audio Splitter
Break one long file into multiple shorter pieces. Three modes: equal parts (cut into N sections of equal length), by duration (every X seconds), or custom markers (split at specific timestamps). The reverse operation of the Audio Merger.
How it works
Drop the file
Any audio file. Interview, mixtape, album bounce, lecture recording.
Up to 200 MB
Pick a split mode
Equal parts: N sections of identical length (good for splitting a recording in half or thirds). By duration: every X seconds (good for chunking long files into upload-friendly sizes). Custom markers: enter exact timestamps where each cut happens (good for splitting an album into tracks).
0.01s precision in custom mode
Split
Web Audio slices the buffer at the boundaries you set and emits one WAV per piece. Download individually or all at once.
Output: multiple 16-bit WAV files
Three ways to split
Cut one long file into the pieces you actually need
Split evenly into a set number of parts, chop every X seconds, or drop your own markers exactly where each cut should land. One recording becomes a handful of clean, separate files, however your project wants them carved up.
Album into tracks
The fast way to break a long bounce into songs
Got a single file that's really a whole album, mix, or DJ set? Use custom-marker mode: enter the start time of each track and the splitter hands you one file per song. It's how you turn a continuous recording back into a proper tracklist without editing each cut by hand.
Upload-friendly chunks
Slice a 90-minute recording down to size
By-duration mode is built for long-form audio that won't fit somewhere, chunk a lecture into 10-minute pieces for a size limit, cut a podcast into evenly-sized social clips, or break up an interview for easier handling. The splits are sample-accurate, so stitched back together they'd rebuild the original exactly. All in your browser.
Frequently asked questions
How do I split an album into individual tracks?
Use Custom markers mode. Enter the start time of each track as a separate marker. For an album with 12 tracks you'd enter 11 markers (the boundaries between tracks). The first piece runs from 0 to marker 1, the next runs from marker 1 to marker 2, and so on. Track times are usually in the album's tracklist or you can find them visually by scrubbing the file in any media player.
What's the use case for By Duration mode?
Long-form recordings that need to be chunked into uniform pieces. Splitting a 90-minute recording into 10-minute chunks for cloud upload limits, splitting a podcast into evenly-sized social clips, or chunking a lecture for student playback.
Are the splits sample-accurate?
Yes. Each boundary is converted to a sample index at the source's sample rate, so concatenating all the output pieces would reproduce the original file bit-for-bit. Each cut happens at an exact sample, not an approximation.
Why are the outputs WAV instead of the original format?
Splitting decoded PCM samples and writing them back is lossless to WAV. Re-encoding each piece to MP3 here would force lossy compression for no reason. If you need MP3 outputs, run each split through the WAV to MP3 converter or use a batch encoder.
Goes well with this tool
Audio Merger
Reverse. Combine multiple files.
Audio Trimmer
Trim a single sub-clip.
Audio Cutter
Cut a section from one file.
Silence Remover
Auto-trim silent gaps.
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Supports WAV · FLAC · MP3 · M4A · AIFF