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Split WAV Files Online

Cut a WAV recording into smaller WAV files in your browser. Nothing is uploaded.

Drop your audio file here

or choose one from your device

  • MP3
  • WAV
  • M4A
  • AAC
  • FLAC
  • OGG
  • OPUS
  • WEBM

Up to 100 MB. Your audio stays on your device.

You place the cuts while you listen

No file at hand?

How do you want to split? You can also decide after the file is open.

Play the file and add a cut wherever you want one, on the waveform. Choose your file above to start.

How do I split a WAV file?

Open your WAV file on this page, mark where each part should start, and press Download. SplitMP3 copies the samples between your cuts into new WAV files and saves them as one ZIP.

  1. Choose your WAV file. It opens in your browser and is not uploaded.
  2. Click the waveform to place cuts, paste timestamps, or pick equal parts or a fixed length.
  3. Check the list of parts, rename them if you like, then download them one by one or as a ZIP.

Which WAV files can I split, and how big can they be?

A WAV file is a short header followed by the samples one after the other. SplitMP3 writes a new header for each part and copies the samples between two cuts without decoding them. It opens WAV files with uncompressed PCM audio (8, 16, 24 or 32 bits) or floating-point audio (32 or 64 bits), in mono, stereo or more channels, at any sample rate. WAV files that hold compressed audio (ADPCM, A-law, µ-law or MP3 inside WAV) are not supported.

WAV is large, and the limit is file size (100 MB on desktop browsers, 50 MB on phones and tablets), so the length you can open depends on the settings:

WAV settingsSize per minuteFits in 100 MB
44.1 kHz, 16-bit, stereo (CD quality)10.1 MBabout 9 minutes
48 kHz, 24-bit, stereo16.5 MBabout 6 minutes
48 kHz, 16-bit, mono (speech)5.5 MBabout 18 minutes

1 MB here is 1,048,576 bytes, the same unit as the limit.

If your recording is longer, cut it in two with a tool that can handle larger files first, or save it as FLAC, which is roughly half the size and opens here too (see split FLAC files).

What happens to the sound and the metadata?

Nothing is decoded or re-encoded. Every part contains exactly the samples that were in that stretch of the original, and a cut lands on a single sample (at 44.1 kHz one sample lasts about 0.02 milliseconds).

  • A part that starts in the middle of a loud passage can begin with a click when it is played alone. Place cuts in a quiet moment.
  • Extra chunks such as LIST text tags, cue points and Broadcast Wave metadata are not copied into the parts.
  • The file is read by your browser through the File API; SplitMP3 has no server that receives audio.

Frequently asked questions

Does splitting a WAV file change the sound?

No. SplitMP3 does not decode or re-encode a WAV file. It copies the samples of each part into a new WAV file with the same sample rate, bit depth and channel layout as the original.

Why does SplitMP3 say my WAV file is not supported?

It opens uncompressed PCM and floating-point WAV files only. A WAV file that contains compressed audio, such as ADPCM or MP3 stored in a WAV wrapper, has to be converted to plain PCM first.

Can I split a long WAV recording into chapters or takes?

Yes. Use the Timestamps tab and write one line per part, for example "00:00 Take 1" and "12:30 Take 2". Each part is named after the title on its line. See split MP3 by timestamps for the exact format; it works the same for WAV.

Does the WAV splitter upload my recording?

No. The recording is opened and cut inside your browser tab, and the parts are created on your device. A studio session or an interview never leaves your computer.

Can I cut a WAV file into pieces of exactly the same length?

Yes, to within one sample. Choose Equal parts for a number of pieces or Fixed duration for a length such as 5 minutes. WAV parts do not need to snap to frames the way MP3 parts do.

Other ways to split

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