Split Audio
Split audio into multiple parts
Click or drop an audio file hereChoose an audio file
About Split Audio
Split Audio cuts one audio file into several files. Choose a single split point (the middle by default), 2 to 100 equal parts, or one part every N seconds; before you split, the page shows how many parts you will get and where the first ones start and end. Each part is cut to the sample and encoded in the format you pick from 18 choices, the same for all parts. Formats your browser cannot play, such as WMA, are measured by ffmpeg.wasm and split the same way. The cutting is done in the page; for Opus, each part is encoded separately on our server.
How to split an audio file into parts
- 1Pick or drop the recording to cut; the page reads its length, even when there is no player for its format.
- 2Choose "At one point", "Equal parts", or "Every N seconds", then set the point, the number of parts, or the length of each part.
- 3Check the line that lists the parts, then choose the "Output format".
- 4Click "Split audio".
- 5Play each part, then click "Download" for one of them or "Download all" for a ZIP.
Formats and limits
- Input formats
- MP3, WAV, M4A, AAC, FLAC, OGG, OGA, Opus, WMA, AC3, AIFF, AIF, AMR, MKA, WEBA, CAF, MP2, M4B, M4R, WV, AU
- Output formats
- MP3, WAV, AAC, FLAC, OGG (Vorbis), M4A, Opus, WMA, AIFF, ALAC, AC3, M4R, M4B, MP2, WV (WavPack), CAF, AU, MKA
- Parts
- 2 to 100 per run, each at least 0.1 s long
- Precision
- Cut to the sample. In a test of September 28, 2026, WAV, FLAC, MP3, and OGG parts put back together matched the original length; M4A added 17 ms and WMA lost 0.1 seconds.
- Maximum file size
- 750 MB on a computer, 300 MB on a phone or tablet; a larger file is refused as soon as you choose it.
- Usage limits
- Opus only: each part is a separate job on our server, counted in an hourly and daily allowance per connection, with a maximum size and length per part.
Where your file is processed
The file is cut in your browser by ffmpeg.wasm, except when the output is Opus. Then each part is rendered here as FLAC and sent on its own to our server for libopus encoding; each part's FLAC is removed there once encoded, and its Opus file after your browser takes it or after 15 minutes. A failed split leaves us one report: its cleaned message, the tool, the file's extension and size range, and your browser with its version.
Frequently asked questions
Can I split into more than two parts?
Yes. "Equal parts" makes 2 to 100 parts of the same length, and "Every N seconds" makes a part every N seconds, with the remainder in the last one. Each run allows at most 100 parts of at least 0.1 s.
Does the splitter keep my file's format?
Yes, when its extension matches one of the 18 outputs: a .flac stays FLAC and a .wav stays WAV, written in 16 bits. Other extensions, such as .aif or .amr, default to MP3, and an Apple Lossless .m4a defaults to M4A (AAC). You can pick any of the 18 formats for all parts.
Will splitting lose quality?
Yes for lossy formats: every part is encoded again, even in the source format, so an MP3 is compressed a second time. Parts saved as FLAC or ALAC are exact; WAV and AIFF parts come out at 16 bits, which trims a deeper recording.
Do Opus parts go through a server?
Yes, each one is sent to our server as a separate job, so a long split can reach the hourly or daily job allowance of your connection. Any part in another format is cut and encoded right in this tab.
Tips and tricks
- ✓To keep a single passage instead of splitting the whole file, use Trim Audio.
- ✓Put parts back together, in any order, with Merge Audio.