Quick answer: To split audio into equal parts, open the file, set the number of parts (2 by default, up to 200) and press Split into parts. Each part has the same length and, in the input's own format, is copied without re-encoding. Download the numbered parts as a ZIP; nothing is uploaded.
An upload limit, a transcription service with a maximum length, or an audiobook that should be split into chunks: set the number of parts and get equal pieces in one go.
Split audio into equal parts at a glance
| Price | Free, no sign-up, no watermark, no daily limit |
|---|---|
| Accepts | MP3 · M4A · WAV · FLAC · OGG |
| Largest file | 1 GB per file |
| Where it runs | In your browser: files are never uploaded |
| Works on | Any modern browser on iPhone, Android, Windows, Mac and Linux |
| Send the result | Download it, or send it free with a link or by email (up to 20 GB) |
How to split audio into equal parts
- Choose the long audio file.
- Set the number of parts: 2 to split it in half, more for smaller pieces.
- Keep the same format to avoid re-encoding.
- Press Split into parts and download the numbered files as a ZIP.
How many parts do you need?
Divide the length by the limit you need to meet and round up. For a size limit, remember that an MP3's size depends on its bitrate: at 128 kbps each minute is about 1 MB, at 320 kbps about 2.4 MB.
| Recording | Limit | Parts |
|---|---|---|
| 90 minutes | 30 minutes per file | 3 |
| 2 hours at 128 kbps (about 115 MB) | 25 MB per file | 5 |
| 45 minutes | Split in half | 2 |
Cuts at exact times, not at words
Equal parts are cut at exact times, which can land mid-word. For speech, Split audio by silence cuts in the pauses instead, and the At times I mark mode on this page lets you place each cut by ear.
Lossless and numbered
MP3 and AAC parts are cut on frame boundaries (about 1/40 of a second) and copied without re-encoding, so they sound exactly like the original. The parts are numbered with leading zeros (01, 02 …), so they sort correctly in any player or upload form.
How this compares
| This tool | Online converters (e.g. Online Audio Converter, Clideo or CloudConvert) | Desktop apps (e.g. Audacity) | |
|---|---|---|---|
| Your file is uploaded | No | Yes, to their servers | No |
| Install or account | None | Account for some features | Install needed |
| Watermark or daily limits | None | Common on free plans | Depends on the app |
Plans of other services change; check their sites. More audio tools.
Frequently asked questions
How do I split an MP3 in half?
Open it here, keep 2 parts and press Split into parts.
Are the parts exactly equal?
Yes, to within one audio frame, about 1/40 of a second.
Is the quality reduced?
No, when you keep the same format: the parts are copied, not re-encoded.
Can I split a video's sound?
Extract it first with Extract audio from video, then split the audio file here.
Is my file uploaded?
No. It is split in your browser.
Need to send a big file?
Send files up to 20 GB with a download link or by email. Free, no account needed, original quality.
Send large files free