Tool 28 · Audio splitter · Free · No signup
Audio splitter.
Drop a long recording and cut it into parts: at the silences between songs or takes, into equal parts, every ten minutes, or by hand while it plays. Name the parts and download them all in one ZIP, as MP3 or WAV. It all runs in your browser.
01 Audio
MP3, WAV, M4A, AAC, FLAC, OGG or Opus. The file is read on your device and never uploads.
02 Split
03 Download
Mark at least one split point first. 192 kbps is transparent for most music; WAV if the parts have to play back to back without a gap.
Split, then a video
A part of a podcast, a track from a live set or one take from a session usually goes somewhere with a picture. Above, a clip in the Studio style of our waveform video maker. Drop a part on it, on the music visualizer for something that moves with a song, or on MP3 to MP4 for a still cover with the sound.
How to split an audio file
Finding the silences is simple arithmetic: the file is read in windows of 10 ms, a window counts as quiet when no sample in any channel rises above the level you chose, and a run of quiet windows at least as long as the gap you chose is a break. The split goes in the middle of it, so each part keeps a little of the silence on both sides and nothing that was sung or said is lost. Silence at the very start or end of the file is not a break and is left alone. The decoding, splitting, encoding and the ZIP all happen on your device.
- Drop the file anywhere on the page, or click to choose it. Or try the sample recording, three takes with a gap between each. If the file has silences in it, it is split at them at once.
- Or pick another way: Equal parts and a number, Every and a length such as 10:00, or By hand, pressing Split here as it plays.
- Drag a line on the waveform to move a split point; press Merge in the list to remove one. The play button on each row plays just that part.
- Type a name for any part you want named. The others are numbered after your file.
- Pick MP3 or WAV and press Download all. You get one ZIP with every part in it, or press the button on a row for that part alone.
Related
- Audio trimmerKeep one part and drop the rest, with a fade in and out.
- Audio joinerThe opposite: several files into one, with a gap or a crossfade.
- MP3 to MP4One part with a cover as a 1080p video.
- Waveform video makerA podcast part as a clip with a moving waveform.
- MP3 tag editorA title, an artist and a cover for each part.
- Volume boosterA quiet part brought up to a normal level.
- Audio converterThe whole file in another format, without splitting it.
Questions
How do I split one long recording into tracks?+
Drop it in. If the file has gaps, a live set recorded in one take, a digitised record side, a lecture with pauses, the tool finds every stretch that stays below −40 dB for a second or more and splits in the middle of it straight away. If it splits in the wrong places, change the two settings: −50 dB for a quiet room, −30 dB for a noisy one; 2 s for a song with a dramatic pause in it, 0.5 s for short gaps between spoken clips. Then name each part in the list and download them all as one ZIP.
How do I split audio into equal parts, or every 10 minutes?+
Choose Equal parts and type how many, or choose Every and type a length such as 10:00 or 0:30, then press Split. Every makes each part that long and leaves the last one shorter. This is the usual way to get a long recording under an upload limit, a voice-message cap or the file size a transcription service accepts: at 128 kbps a minute of MP3 is about 1 MB, so ten-minute parts are about 10 MB each.
Is the sound changed where it is split?+
No. Each part starts at the exact sample where the previous one ends, with no fade and nothing dropped or doubled, so WAV parts played back to back, or joined again, are the original sample for sample. MP3 is different by nature: the encoder adds about 25 ms of silence to the start of every file and most players do not remove it, so MP3 parts played in a row have a tiny gap at each join. For an album that has to play gaplessly, download WAV.
Can it split vocals from the music?+
No. This splits a file in time, one stretch after another. Separating the voice from the instruments in the same stretch is a different job, called stem separation, done by trained AI models on a server; nothing in a browser does it well, and we do not offer it. If what you want is a part of a song, the splitter or the trimmer is the right tool; if you want the song without its vocals, it is not.
What do I get when I download?+
One ZIP with a file for every part, named after your file with 01, 02, 03 on the end, or the names you typed in the list. Windows, macOS, iPhone (in Files) and Android open a ZIP without extra software. To take a single part, press the MP3 or WAV button on its row in the list instead. The ZIP stores the files as they are: MP3 is already compressed and WAV barely shrinks, so zipping them again would only cost time.
Which formats can I split, and how long can the file be?+
Anything your browser can play: MP3, WAV, M4A and AAC, FLAC, OGG Vorbis and Opus in current Chrome, Edge and Firefox. Chrome cannot decode WMA, AIFF or Apple Lossless. The parts come out as MP3 at 128, 192 or 320 kbps or as 16-bit, 44.1 kHz WAV, up to 100 parts. We set no length limit; the whole file is held uncompressed while you work, about 20 MB a minute in stereo, so a two-hour recording is fine on a laptop and too much for most phones.
I was looking for a headphone splitter. Is this it?+
No. An audio splitter is also the Y cable or adapter that lets two pairs of headphones, or a soundbar and a receiver, share one output. That is hardware, sold by any electronics shop. This page is software: it cuts an audio file into several files.
Is my audio uploaded?+
No. The file is decoded, split and encoded on your device, and the ZIP is put together there too. The page only counts that parts were saved, with the format and the way you split, never a name or the audio.