How do I split an audio file into equal parts?

Open Audio Splitter, load your file, choose the equal-parts split mode, and set how many segments you want. The tool divides the recording into that many roughly equal-length parts and exports each as its own file.

How do I split a recording into separate tracks?

Use custom split points instead of equal parts. Mark the exact position where each track starts — for example, the boundary between songs on a digitized album side — and export. Each marked section becomes its own file, matching the original tracks.

Audio splitter vs audio trimmer — which one do I need?

Use the trimmer if you want one shorter clip cut from a longer file. Use the splitter if you want the whole file divided into several separate output files — for example turning one long recording into multiple chapters or tracks.

Does splitting audio online upload my file to a server?

No. Audio Splitter processes the file entirely in your browser using WebAssembly (ffmpeg.wasm). The audio is never sent to a server, so it stays on your device throughout.

What audio formats can I split?

Audio Splitter commonly supports MP3, WAV, M4A, OGG, and FLAC. If your file is in a different format, convert it first with Convert Audio Format, then split it.

How to Split an Audio File Online (Free, No Upload)

Quick answer

To split an audio file online, drop it into a browser-based [audio splitter](/audio-splitter), choose how you want it divided — into equal-length parts or at custom split points you set yourself — and export each resulting segment as its own file. PixelTools' Audio Splitter runs entirely in your browser using WebAssembly, so the file is never uploaded to a server. It works with common formats like MP3, WAV, M4A, OGG, and FLAC. This is different from trimming: a splitter turns one file into several output files, not one shorter file.

Why people need to split audio

Splitting comes up any time one audio file actually contains several separate things. A long lecture or podcast recording often needs to become individual chapters so listeners can jump to a topic. An album side digitized from vinyl or tape usually arrives as a single continuous file that needs to be broken into individual track files matching the record. A long voice memo — a meeting, an interview, a rehearsal — is easier to share and reference in pieces rather than as one hour-long file. In each case the goal isn't to discard anything, it's to turn one recording into a set of smaller, independently usable files without re-recording or re-encoding by hand.

Equal parts vs custom split points

Audio Splitter supports two ways to divide a file. Equal parts splits the recording into a set number of segments of roughly the same length — useful when you just need, say, a 40-minute recording cut into four 10-minute chunks for upload limits or easier review, and the exact boundaries don't matter. Custom split points let you place each cut exactly where you want it — at the start of each track on an album rip, at each chapter break in a lecture, or wherever the content actually changes. Custom points give you control over what ends up in each file; equal parts is faster when you just need a long recording broken down into manageable, evenly sized pieces.

How to split audio with PixelTools

Open [Audio Splitter](/audio-splitter) and add your audio file — it loads directly in the browser, nothing is sent anywhere. Choose a split mode: equal parts, where you set how many segments you want, or custom split points, where you mark the exact positions to cut. Preview the segments before exporting to confirm the boundaries land where you expect. When you're ready, export — each part is generated as its own file. Because processing happens client-side via ffmpeg.wasm, there's no upload wait and no server-side file size cap; how large a file you can work with depends on your device's memory rather than a service quota.

Audio splitter vs audio trimmer

These solve different problems even though both cut audio. [Audio Trimmer](/trim-audio) takes one file and produces one output: you set a start point and an end point, and everything outside that range is discarded. Use it when you want a single clip out of a longer recording. Audio Splitter takes one file and produces multiple outputs: instead of keeping one range and dropping the rest, it divides the whole file into several segments, all of which you keep. Use the trimmer when the answer is 'give me this one piece.' Use the splitter when the answer is 'give me all of these pieces as separate files.'

Privacy and supported formats

Audio Splitter runs fully client-side in the browser using WebAssembly (ffmpeg.wasm) — the same processing approach used across PixelTools' audio and video tools. Your file is decoded, split, and re-encoded on your own device; it's never uploaded to a server, which matters for recordings that are personal, confidential, or simply large. The tool commonly supports MP3, WAV, M4A, OGG, and FLAC, so most recordings — from voice memos to ripped vinyl to podcast masters — can be split without a format conversion step first. If you do need a different output format afterward, [Convert Audio Format](/convert-audio) handles that separately.